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43 open positions

Staff Software Engineer

New20 positions

Confidential

San Francisco, California, United StatesRemoteFull-time$200k – $275k

Base

About Our client is a global financial technology company at the forefront of the new internet of money. Our infrastructure including USDC, a blockchain-based dollar powers payments, commerce, and financial applications worldwide. We help businesses, institutions, and developers leverage breakthrough blockchain technologies to drive global economic prosperity and digital inclusion. The Opportunity and Responsibilities: The Staff Software Engineer is responsible for extending their in-house blockchain systems infrastructure to support the tokenization of the world; analyzing requirements, procedures, and problems to improve existing systems and modifying systems; building and owning scalable microservices that are responsible for reliable and secure APIs that transfer value and assets across all blockchain protocols as well as traditional banking protocols; collaborating with Product and Engineering teams to design, test, and shape their features, including developing and documenting system design procedures, testing procedures, and quality standards; troubleshooting program and system malfunctions to restore normal functioning; building publicly accessible APIs that make it simple for developers to integrate with complex payment systems; integrating Platform Services with leading banks and financial technologies; consulting with management to ensure agreement on system principles; writing the infrastructure to deliver great payment experiences, including data sources (SQL or NoSQL), messaging systems and APIs; other duties as assigned. Key Requirements A. 7 years minimum professional software development experience in object oriented languages like Go or Java. B. Computer Science degree or a closely related field (or foreign equivalent). C. Technical leadership of teams >4 on architecture and system design. D. Expert in one of the domains of API design, payments processing, or blockchains. Deep understanding/experience with: - Architecture, design, and deployment of production-quality, scalable software - Web3, blockchain, smart Contract business logic - RESTful API design and development principles - Cloud services (AWS, Google Cloud, Microsoft Azure, etc) - Container orchestration systems like Kubernetes or EKS, ECS - SQL databases and designing schemas F. Deep focus on coding standards and code quality, a desire to have great test coverage to enable continuous delivery. G. Excellent communication skills, able to collaborate with remote teams, share ideas and present concepts effectively H. Self-starter with a curious mindset, you enjoy moving at a fast pace, shipping software that improves the user experience and constantly improving your work with little supervision

Senior/Staff Backend & Platform Engineer (FinOps, IAM & Blockchain)

New2 positions

Moonshot

New York, New York, United StatesRemoteFull-timeUp to $200k

SolanaDeFiZK

About the Role As a Senior / Staff Backend & Platform Engineer at Moonshot, you'll own some of the most critical systems in our stack:identity and access, funds movement and ledgering, and the blockchain infrastructure that powers our on-chain trading. This role is similar to staff engineers at leading crypto wallets and exchanges who own authentication stacks, key management, and high-scale financial backends. You'll design, build, and operate systems that must be both highly reliable and extremely secure, enabling product teams to move quickly on a solid foundation. Key Responsibilities Design, build, and operate Identity & Access Management services: Authentication flows, sessions, device trust. Authorization and entitlements (roles, permissions, policies). Security controls such as MFA and key management (working with security teams). Own: financial operations systems Transfers and payments orchestration. Ledgering and reconciliation flows. Limits, risk controls, and transactional correctness. Build and maintain: blockchain infrastructure Node and RPC management. Transaction submission, monitoring, and retry logic. Indexing and streaming of on-chain data into internal services and data stores. Define and uphold: reliability and observability standards SLOs and error budgets for core services. Dashboards, alerts, runbooks, and incident management practices. Lead large, cross-functional technical projects from design through rollout, collaborating with Product, Security, and Ops. Mentor and guide other engineers, contributing to engineering standards, design reviews, and documentation. Stay close to industry best practices in auth, key management, and secure infrastructure for crypto and trading. Requirements - 5-12+ years of backend or product or platform engineering, including experience with high-scale, high-availability systems in fintech, crypto, or similar domains. - Deep expertise in at least one of: Identity & access / security engineering; Financial systems / ledgering / payments; Blockchain infrastructure / on-chain data. - Strong experience designing and operating distributed systems (datastores, queues, streaming, background workers). - Track record driving architecture decisions and seeing them through implementation and adoption. - Strong operational mindset: monitoring, on-call, incident response, and postmortems. Bonus Skills * Experience with Flutter, React Native, React, Headless CRMs. * Experience with Go, Rust, Solana. * Experience with Google Cloud or Amazon Web Services. * Experience with crypto wallets, exchanges, or onchain protocols including DeFi, L2s, ZK. * Exposure to data warehousing and analytics for financial reporting. * Contributions to open-source projects

Senior Software Engineer (Wallets)

New

Stellar

New York, New York, United StatesHybridFull-time$170k – $260k

Base

Senior Software Engineer, C++

New

Confidential

New York, New York, United StatesFull-time$180k – $290k

About the Company A leading decentralized infrastructure company is building one of the worlds most efficient public blockchain networks designed to enable developers to create applications that feel more like using cash than crypto. The platform provides high-speed, low-cost, and energy-efficient transactions, empowering developers and institutions to launch scalable, real-world financial applications on-chain. About the Role As a C++ Engineer , you'll work on the distributed systems and consensus engine at the core of a global blockchain network used by developers and institutions worldwide. This role involves tackling deep systems challenges: improving performance, optimizing peer-to-peer communication, ensuring security under adversarial conditions, and shaping the incentive mechanisms that drive decentralized stability and growth. You'll join a team of experienced engineers collaborating on protocol evolution, consensus modeling, and system architecture making direct contributions to the foundation of next-generation blockchain infrastructure. Key Responsibilities Design and build critical components of the blockchains core distributed system and consensus layer. Develop scalable, extensible, and secure infrastructure that powers thousands of on-chain applications. Collaborate with engineering leadership and community contributors on architectural design and protocol evolution. Write clean, maintainable, production-quality C++ code optimized for performance and reliability. Investigate and refactor performance bottlenecks across the system stack. Contribute to detailed technical specifications and RFCs, helping shape design standards for the engineering organization. Participate actively in code reviews and lead technical discussions on systems architecture and engineering best practices. Required Qualifications 4+ years of professional software engineering experience. Bachelors or Masters degree in Computer Science or equivalent field. Deep, hands-on expertise in modern C++ (production-level experience required) . Strong understanding of software design principles and patterns for modular, extensible systems. Proven ability to collaborate and communicate effectively in technical discussions and design reviews. Experience contributing to or developing in blockchain, distributed ledger, or decentralized protocol environments (or a demonstrated passion for the field through open-source projects, research, or personal initiatives) . Bonus Skills Experience designing and implementing distributed systems at scale. Familiarity with Rust or other systems-level programming languages. Interest in blockchain economics, consensus algorithms, and decentralized system design. Contributions to open-source projects or Web3 developer communities.

Senior Software Engineer

New20 positions

Confidential

New York, New York, United StatesRemoteFull-time$148k – $195k

Base

About the Company Circle is a global financial technology company at the forefront of the new internet of money. Our infrastructure—including USDC, a blockchain-based dollar—powers payments, commerce, and financial applications worldwide. We help businesses, institutions, and developers leverage breakthrough blockchain technologies to drive global economic prosperity and digital inclusion. About the Role The Senior Software Engineer is responsible for extending Circle's in-house blockchain systems infrastructure to support the tokenization of the world. The role involves analyzing requirements, procedures, and problems to improve existing systems and modifying systems. You will build and own scalable microservices that are responsible for reliable and secure APIs that transfer value and assets across all blockchain protocols as well as traditional banking protocols. The position requires collaboration with Product and Engineering teams to design, test, and shape Circle features, including developing and documenting system design procedures, testing procedures, and quality standards. You will be troubleshooting program and system malfunctions to restore normal functioning, building publicly accessible APIs that make it simple for developers to integrate with complex payment systems, integrating Platform Services with leading banks and financial technologies, consulting with management to ensure agreement on system principles, and writing the infrastructure to deliver great payment experiences, including data sources (SQL or NoSQL), messaging systems and APIs. Requirements - 6+ years of professional software development experience in object-oriented languages, deep Java expertise is preferred. Go is used but secondary. C#/.NET backgrounds are not a fit - Bachelors Degree in Computer Science or a closely related field - Led teams (2-4) technically on architecture and system design - Experience working with payment systems like credit cards and bank transfers - A broad understanding of RESTful API design and development principles - Experience with Cloud Services (AWS, Google Cloud, Microsoft azure, etc.) - Experience with SQL databases and designing schemas - Proven experience in the design & deployment of production-quality, scalable software - A focus on coding standards and code quality, a desire to have great test coverage to enable continuous delivery

Senior Site Reliability Engineer

New

Stellar

San Francisco, California, United StatesFull-time$165k – $235k

Base

About the Company Stellar is a decentralized, public blockchain that gives developers the tools to create experiences that are more like cash than crypto. The network is faster, cheaper, and far more energy-efficient than most blockchain-based systems. It's designed so Stellar's ecosystem can make a real-world, lasting impact. About the Role SDF is looking for a Senior Site Reliability Engineer to help build and operate the foundation that powers our engineering teams. You'll ensure the reliability and scalability of our systems, design and improve the infrastructure behind our production environments, and automate operational work so developers can focus on building great products. Key Responsibilities Maintain, improve, scale and secure our AWS/GCP infrastructure and Linux systems. Assist our development teams in running, packaging, deploying and troubleshooting applications Work with developers on streamlining deployment processes with Jenkins and other CI/CD tooling. Build, maintain, monitor and improve our Kubernetes clusters. Work with development teams on migrating applications to Kubernetes. Be responsible for maintenance and improvements to multiple internal services, for example Kubernetes, Prometheus, ELK. Monitor, triage and respond to alerts in our high availability environments. Participate in design and code reviews, and ensure that the foundation for our services is best in class. Evaluate new technologies, design and implement as appropriate. Identify automation opportunities and implement by creating custom or by using off the shelf solutions. Requirements 5+ years of experience of working in cloud-based systems operations, as a SRE or DevOps engineer. First-hand experience with configuration management and infrastructure as code (Ansible, Puppet, Terraform). Proficient in utilizing SRE methodologies like capacity planning and disaster recovery testing to ensure the scalability, resilience, and availability of critical services. Production experience building and maintaining Kubernetes clusters. Will need to know how to code Bonus Skills Ability to understand Go, Rust, C++ and TypeScript source code Experience experimenting with AI-driven approaches to operations Comfortable with participating in on-call rotations and conducting thorough root cause analyses to keep systems running smoothly. Experienced in managing production workloads and skilled in using monitoring tools to detect issues early. A strong understanding of computer networking, TCP/UDP, load balancing, distributed computing, web services, and the fundamental protocols used by the internet (HTTP, HTTPS, DNS, etc.). No blockchain needed Experience using AI is a plus

New

Confidential

Austin, Texas, United StatesFull-time$175k – $200k Token comp

EthereumBaseTON

About the Company We are building the rails to bring Wall Street into the 21st century. Backed by $40M from leading crypto and fintech investors, we are bringing together the best minds from Ethereum and Wall Street to rebuild the infrastructure that underpins the financial system — faster, safer, fully on-chain. About the Role Are you the person who can't sit in a room full of loose ideas and half-made decisions without walking out owning the plan? We're looking for a Chief of Staff to turn client and market context into product decisions, plans, and commitments across Product & Engineering. Our Chief of Staff will sit at the centre of it all, working with our CTO to turn a sea of client and market context into detailed product decisions, launch plans, and company commitments. The right person in this role will evolve into a pseudo-founder, working across every facet of the organisation. Key Responsibilities - Be the right hand to our CTO across every room they're in — absorbing critical context, brainstorming decisions together, and taking the lead on turning those decisions into direct action plans - Turn the roadmap into an operating rhythm: break initiatives into workstreams, milestones, and owners; track the critical path across engineering, product, design, and all specialist functions (security, privacy, legal, BD, marketing) - Own how the team uses its project management tooling - Take point on the ambiguous stuff — scope and drive high-priority needs that don't belong to anyone yet, with research, synthesis, and sharp first-pass thinking on new areas Requirements - A high-agency operator with real reps running the engine of a fast-moving team — as a Chief of Staff, Operations Leader, Founder's Associate, or de facto COO of a startup. You don't just capture someone else's plan, you absorb enough context to make the plan yourself. - Program and project management in your bones: you've turned strategy into executable plans, milestones, and owners before - High-EQ connective tissue: you read clients, markets, and rooms on instinct. You catch what goes unsaid in a client meeting and hold together the human threads that keep an exceptional leader and team in sync. - Low-ego and high-initiative: energised by making the team win and comfortable being behind the scenes, while ambitious enough that people often peg you as a future founder - Unrattled by chaos and speed: deeply organised but able to hold shifting, sometimes-conflicting inputs from multiple leaders and clients without dropping anything - Based in or willing to relocate to Austin, TX Nice to Have - Product experience, fintech, financial markets, or blockchain exposure Benefits - Medical, dental, and vision healthcare - 401(k) - Generous PTO

January

New York CityHybridFull-Time$130k – $195k

TON

About January At January, we're rebuilding one of the most broken parts of consumer finance: what happens after someone falls behind on debt. Our autonomous, compliant collections platform works directly for creditors, using data and AI to personalize outreach and offer consumers clearer, more compassionate ways to resolve what they owe. Creditors recover more effectively with less risk; consumers get dignity and control during a distressing situation. January has serviced $20B+ in debt and engaged 20M+ consumers. We outperform traditional agencies by 30%+ for 80%+ of our clients, consumer satisfaction is ~50% higher than at the largest banks, and the product is roughly 300x more efficient than traditional collection agencies. Backed by Series B funding, ~100+ people working out of Nolita, NYC. About the Role This is a combined role replacing the separate Implementation Consultant and Client Strategy Manager positions. You'll join the Strategy & Operations team to drive decisions and work that directly accelerate January's enterprise growth. Depending on your background, you'll land on one of the team's tracks: client implementations, client strategy, or compliance. Key Responsibilities - Own operational outcomes end-to-end within your track — from diagnosing problems to shipping solutions, not advisory or support - Build systems, playbooks, and capabilities that compound — eliminate drag through automation, tooling, workflow redesign, or killing low-value work entirely - Turn repeated client situations into systematic capabilities so the next complex escalation, integration, or audit response is handled faster - Drive the highest-leverage initiatives from diagnosis through adoption, identifying patterns that should reshape product priorities or go-to-market strategy - Own named outcomes: a portfolio of client relationships and expansion opportunities (Strategy), end-to-end client integrations (Implementations), or compliance systems that give Sales a concrete edge (Compliance) Requirements - 4+ years in strategy, operations, consulting, or client-facing delivery roles with direct ownership of diagnosing problems and shipping solutions end-to-end - Experience owning client relationships or client-facing delivery in a high-touch context - Demonstrated ability to structure messy data into insights that changed behaviour - Experience driving outcomes that depend on teams you don't control — getting Product, Engineering, Legal, or other functions to act on your diagnosis - Strong educational background Bonus Skills - Technical fluency to build automations and operational tools without engineering support (LLM-assisted workflows, automated reporting, intelligent routing) - Familiarity with financial services, fintech, or regulatory/compliance-heavy industries - SQL, Excel, or BI tools (Mode, Looker, Tableau) - Background in SaaS implementations, system integrations, or technical consulting

Social Media DeFi Wizard

Confidential

London, United KingdomFull-time$80k – $100k

TONDeFi

About We are looking for a Social Media DeFi Wizard to take full ownership of public voice: Across social channels, content, announcements, PR moments, and community-facing brand communication. This role sits at the intersection of social media, communications, and content, and is ideal for someone with hands-on execution. You will craft narratives that simplify complex financial and DeFi concepts, build reach and engagement across Twitter (X), LinkedIn, Telegram, and emerging channels, and help position as a leading voice in the tokenization and onchain finance landscape. Your Responsibilities Include Social Media Strategy & Execution Build, own, and execute our multi-channel social media strategy (Twitter/X, LinkedIn, Telegram, Discord) that resonates with both institutional and crypto-native audiences. Develop data-driven campaigns that support product launches, partnerships and executive thought leadership. Content & Narrative Development Create educational and storytelling-driven content across mediums: articles, thought leadership, market explainers, product spotlights, long-form social posts, newsletters, and more. Collaborate with leadership to refine and reinforce positioning, voice, and narrative - especially as part of our upcoming rebrand. Translate complex investment and DeFi concepts into accessible, compelling messaging. Community Engagement & Relations Monitor crypto and finance conversations, engage directly with communities, answer questions, and proactively participate in user discussions. Build strategies to grow our audience, deepen engagement, and strengthen trust across retail and institutional communities. Organize side events to represent at the major crypto conferences. Communications & PR Work with founders to prepare announcements, press materials, and messaging for external partners. Coordinate with journalists, podcasts, and industry media for interviews, features, and coverage. Analytics & Cross-Team Collaboration Track key metrics across channels and content types and provide insights & recommendations for continuous optimization. Monitor macro market, crypto, DeFi, and tokenization trends to keep at the center of industry conversations. What We Are Looking For 3–5+ years in social media, communications, or content roles (preferably in Crypto, DeFi, or Fintech). Proven success in growing social media accounts and driving meaningful engagement. Strong storytelling and writing skills with the ability to simplify financial/crypto concepts. Familiarity with tokenization, DeFi, products like RWAs, structured products, and the broader crypto space. Familiarity with analytics tools (e.g., Twitter Analytics, etc.). Highly autonomous, proactive, and comfortable executing quickly in a fast-growing startup environment. What We Offer Play a central role in shaping and rebranding a fast-scaling company at the forefront of asset tokenization. Build and lead the voice across global channels. Work in a highly entrepreneurial, agile, and globally distributed team. Open and transparent culture where your ideas matter. Competitive compensation for long-term alignment.

Payments Engineer

The Better Money Company

New YorkOn-siteFull-time$200k – $200k

TONStablecoins

About The Better Money Company The Better Money Company (TBMC) is building a stablecoin clearinghouse — the infrastructure layer that lets stablecoins move like money rather than a trading asset. The clearinghouse gives fintechs, neobanks, banks, and payments companies 1:1 at-par swaps across chains and issuers, with guaranteed settlement times, fixed fees, and a compliant source of funds. They already support 8 of the top 10 issuance platforms and move real money for customers today. Backed by $10M from a16z Crypto, plus BoxGroup, Sunflower Capital, and leading fintech angels. Design partners include Ramp and Modern Treasury. A small, deliberately tight NYC team — they shipped money movement within six months of starting and optimise for autonomy, ownership, and pace over headcount. About the Role The clearinghouse lives or dies on correct, resilient money movement. The Payments Engineer designs and builds the fiat-and-stablecoin clearing system end to end — ledgering, reconciliation, and the integrations into banks, issuers, and custodians the rest of the product depends on. Key Responsibilities - Design, build, and scale components of the money-movement / clearing system - Build integrations with banks, stablecoin issuers, custodians, and partners — often across aging, fragmented APIs - Own ledgering, reconciliation, and auditability so balances are always provably correct - Build core product functionality that enables better stablecoin payments for customers - Weigh in on broader architecture and bring insights the team doesn't yet have Requirements - 3+ years building deeply with payment systems, financial infrastructure, and/or banking integrations - Has scaled a payment system 0→1 (ideally also 1→10) - Deep understanding of fiat payment rails (ACH, wires, RTP) plus ledgering, reconciliation, and auditing - Strong distributed-systems fundamentals — ships fast without sacrificing correctness or scale Bonus Skills - Stablecoin / blockchain familiarity (teachable; not required) - Resilient integrations across legacy / fragmented financial APIs Benefits - Medical, dental, vision - Unlimited PTO - Periodic off-sites

Platform Engineer

The Better Money Company

New YorkOn-siteFull-time$200k – $200k

BaseTONStablecoins

About The Better Money Company The Better Money Company (TBMC) is building a stablecoin clearinghouse — the infrastructure layer that lets stablecoins move like money rather than a trading asset. The clearinghouse gives fintechs, neobanks, banks, and payments companies 1:1 at-par swaps across chains and issuers, with guaranteed settlement times, fixed fees, and a compliant source of funds. They already support 8 of the top 10 issuance platforms and move real money for customers today. Backed by $10M from a16z Crypto, plus BoxGroup, Sunflower Capital, and leading fintech angels. Design partners include Ramp and Modern Treasury. A small, deliberately tight NYC team — they shipped money movement within six months of starting and optimise for autonomy, ownership, and pace over headcount. About the Role TBMC moves real money on top of a well-built but complex state machine, and that system has to stay provably correct as it grows. The Platform Engineer owns the test harness and correctness guarantees — integration tests, formal verification, and chaos testing across the ledger, netting algorithm, money movement, and payment ordering — plus the internal tooling and dev infra that give a small team the leverage of a big one. Key Responsibilities - Own the test harness for core systems: integration tests, formal verification, chaos testing across ledger, netting, money movement, and payment ordering - Build correctness guarantees that let the rest of the team ship faster with confidence - Design and build internal tools and automation that amplify team productivity - Own CI/CD, dev environments, and deployment infra — make the path to production fast, safe, and boring - Instrument systems with observability (logging, tracing, alerting) to catch issues before customers do Requirements - 3+ years in platform engineering, developer tooling, infrastructure, or reliability engineering - Has built test infrastructure for systems where correctness matters — payments, trading, ledgers, or similar - Strong distributed-systems fundamentals; reasons confidently about resilient, correct systems at scale - Builds production-grade internal tooling without being asked Bonus Skills - Formal verification, property-based testing, or chaos engineering - Stablecoin / blockchain familiarity (teachable; not required) Benefits - Medical, dental, vision - Unlimited PTO - Periodic off-sites

Forward Deployed Engineer

The Better Money Company

New YorkOn-siteFull-time$200k – $200k

TONDeFiStablecoins

About The Better Money Company The Better Money Company (TBMC) is building a stablecoin clearinghouse — the infrastructure layer that lets stablecoins move like money rather than a trading asset. The clearinghouse gives fintechs, neobanks, banks, and payments companies 1:1 at-par swaps across chains and issuers, with guaranteed settlement times, fixed fees, and a compliant source of funds. They already support 8 of the top 10 issuance platforms and move real money for customers today. Backed by $10M from a16z Crypto, plus BoxGroup, Sunflower Capital, and leading fintech angels. Design partners include Ramp and Modern Treasury. A small, deliberately tight NYC team — they shipped money movement within six months of starting and optimise for autonomy, ownership, and pace over headcount. About the Role The FDE lives at the boundary between TBMC and its customers — payments companies and financial institutions, often on aging, fragmented infrastructure. They come in earlier than a typical FDE: owning the full integration lifecycle, helping define the product surface area built with partners, and translating customer needs into roadmap input. This is an engineer willing to do sales — technical sales alone isn't enough. Key Responsibilities - Own the full integration lifecycle with customers/partners — scoping, technical design, implementation, testing, go-live - Be the connective tissue between customers and product; triage and scope needs into actionable roadmap input - Design and build shared tooling, SDKs, and documentation that make integrating fast and painless - Debug production issues across system boundaries — first responder when something breaks between TBMC and a partner - Talk to users and build product hands-on, not just advise Requirements - 3+ years building and shipping integrations with payment systems, financial infrastructure, and/or banking partners - Has been on the other end of the API — knows what good and bad integration experiences feel like - Excellent communication — translates between engineering-speak and customer-speak without losing fidelity - Enough payments fluency to move fast through complex flows of funds Bonus Skills - Stablecoin / blockchain experience (preferred, not required) - Prior forward-deployed / solutions-engineering experience Benefits - Medical, dental, vision - Unlimited PTO - Periodic off-sites

Site Reliability Engineer

Confidential

New YorkOn-siteFull-time$300k – $500k

BaseDeFi

About the Company We are a team of elite builders, moving fast and redefining what's possible. We're a high-growth software development company operating at significant scale in the crypto space, building platforms that have generated substantial revenue and attracted significant attention across the crypto community. About the Role We are looking for a battle-tested SRE expert who solves problems. Someone we can hand an ambiguous, high-stakes infrastructure bottleneck to and trust to navigate it end-to-end scoping it, making sound trade-offs, and knowing when to ask versus when to just execute. Requirements - SRE/Infrastructure Specialist: Infrastructure-as-code, high-availability architecture, network topology, and system internals are your home turf. You write clean, production-grade automation code (Python, Go, or similar) for tooling, operators, and systems integration. - Foundational Infrastructure Experience: Ideally 0 to 1 experience, with the ability to speak credibly about platform architecture decisions you made early — what you were glad about, and what you'd do differently. - Production Systems at Scale: Experience with highly available environments, multi-region or active-active failover designs, real on-call rotations, critical incident response, and blameless post-mortems. You understand why reliability in a financial system is a different kind of serious. - Modern Cloud and Cloud-Native Tooling: Deep expertise in modern cloud providers (AWS, GCP), container orchestration (Kubernetes), and infrastructure-as-code (Terraform/OpenTofu). Understanding of the underlying patterns and opinions formed by hard-won experience. - Risk Judgment: You can move fast when the situation allows and slow down when safety demands it — and you can explain why in any given case. Nice to Have - Security & compliance engineering: infrastructure security hardening, IAM architecture, or compliance mapping (SOC 2, ISO) - Data & streaming infrastructure: experience managing and scaling high-throughput, low-latency data backbones and event streaming systems (Kafka, Redpanda, PostgreSQL) - Comfort with crypto/Web3 infrastructure patterns - Cultural leadership: a track record of raising the operational engineering bar through tooling, standards, and mentorship Compensation - Competitive base salary + equity/tokens

Product Engineer

Sherlock

RemoteFull-time$140k – $160k

EthereumOptimismBaseCosmosDeFi

About the Company We exist to make open finance secure enough for billions of people to trust with real value. We believe sound money and reliable financial infrastructure should be basic human rights and that Web3 can only achieve that if it's secure by design. Traditional audits alone don't solve that problem. We connect every layer of protocol security through collaborative audits, audit contests, bug bounties, coverage, and AI-powered analysis. Each product reinforces the others, forming a lifecycle system that protects protocols from development through live operations. We are the only security provider that offers financial coverage after every audit, backing our work with up to $500K in post-launch exploit protection. We have run more public audits than anyone in the space, securing code for the Ethereum Foundation, Aave, Optimism, Cosmos, MakerDAO, and dozens of other top teams. About the Role We are building an AI product for blockchain security. The core is already built and in customers' hands. What it now needs is someone to sit between our customers protocol teams shipping real money on-chain and the product, and own the loop from "what do they actually need" to "shipped." This is a generalist product engineering role. You will talk to customers, decide what matters, and ship it yourself. You will move across the entire product surface: the UI that protocol teams use to submit code and read findings, the prompting and judging pipelines that decide which issues reach the customer, the benchmarks that tell us whether the system is actually getting better, and the product calls in between. We are looking for a senior Python developer with a strong track record shipping software products to real users. You ship UI as comfortably as you ship backend. You use LLMs in your daily workflow and have shipped at least one feature whose value depends on LLM output quality. You are entrepreneurial, highly self-directed, and product-minded. Key Responsibilities - Talk directly to protocol teams using the product, identify what they actually need, and convert those conversations into concrete product and UI changes - Ship those product and UI changes yourself — you write the code, not just the spec - Improve the prompting, judging, deduplication, and false-positive reduction pipelines that determine which findings reach customers - Build and maintain benchmarks to measure whether changes actually improve the product - Make product calls in ambiguous situations and push work forward without heavy direction - Work closely with developers and security researchers to stay aligned on goals and ship the right things - Stay current with practical advances in AI and LLMs that improve developer velocity and product quality Requirements - Senior-level Python experience with a track record of shipping SaaS or software products to production - Comfortable owning UI work end-to-end in a modern frontend stack (Next.js / TypeScript) — thinking through UX flows, mapping out possible states, and translating that into a working UI yourself. Not a designer role, but you genuinely enjoy this part of the job. - Daily use of LLMs in your workflow, plus hands-on experience shipping a feature whose value depends on LLM output quality — prompting, judging, retrieval, evals, or similar - Comfortable on calls with technical customers — recurring part of the job, not occasional - High agency: comfortable working without a PM, designer, or eng manager handing you scoped tickets. You decide what to build, scope it yourself, and ship it. - Working hours that meaningfully overlap with US or EU timezones Nice to Have - Experience setting up evals, judging pipelines, or benchmarking for LLM systems - Familiarity with prompt engineering, evaluation frameworks, retrieval, and vector databases - Prior experience in fast-moving, underdefined startup environments - Familiarity with audits, bug reports, or security workflows - Familiarity with Solidity, EVM tooling (Foundry, Hardhat), or smart contract security This Role Is Not a Fit If You Are: - A pure backend specialist, pure prompt engineer, or pure UI designer - Someone who can discuss ideas but rarely ships product themselves - Dogmatic about one function and uninterested in working across the stack - Without Python experience or without genuine interest in UI work What's on Offer - Competitive base (payable in fiat or crypto) + meaningful tokens/equity + benefits - Flexible time-off policy and great healthcare - Multiple offsites each year - Remote role with a small, high-output team - Core ownership of an AI product at a company leading the security shift in blockchain - Direct access to founders and decision-making at all levels

Head of Security & Risk

Confidential

NYCHybridFull-time$250k – $300k

BaseDeFiStablecoins

About the Company We are the shared infrastructure where businesses launch their own branded stablecoins and financial institutions power them. Built on a common standard, every stablecoin on our platform is interoperable and liquid from day one — giving businesses programmable control over how money moves in their ecosystems, and giving financial institutions the most advanced issuance stack in the industry. About the Role We are seeking a sharp, execution-focused Head of Security & Risk to build and own the information security and risk function from the ground up. This is a foundational IC role at a critical inflection point — we are onboarding regulated institutional partners, expanding on-chain liquidity solutions, and operating infrastructure that regulated entities depend on. The information security and risk posture we establish in the next 12 months will define how we are perceived by partners, regulators, and institutional investors for years to come. Reporting to the Deputy COO, you will be our first dedicated information security and risk professional — responsible for building the enterprise risk management program, owning the information security compliance certification roadmap, establishing the security operations framework, and responding to partner security due diligence requests. You will work daily across engineering, product, legal, BD, and operations to ensure our security posture is proactive, documented, and defensible. Key Responsibilities - Build and Own Enterprise Risk Management: Build the enterprise risk program from scratch. Cover security, operational, regulatory, and counterparty risk — including the risk register, annual assessments, scenario analyses, and escalation framework across all entities. - Own the Information Security Compliance Certification Program: Own the compliance posture across SOC 2, ISO 27001, and other applicable frameworks — driving all non-technical workstreams (policy writing, auditor coordination, vendor risk, access reviews, third-party SaaS vendor evaluations) and keeping the organization audit-ready at all times. - Establish the Information Security Operations Framework: Design and maintain the incident response framework, ISMS documentation, and security policies — own external security vendor relationships, facilitate tabletop exercises covering IR, BCP, and DR scenarios, and drive the selection of a security advisory firm for on-call support. - Own Partner Information Security Due Diligence: Serve as the primary point of contact for institutional partner security due diligence and inbound security questionnaires. Build and maintain the reusable documentation package for responding to partner requests, and coordinate with Senior Counsel on information security representations in commercial agreements. - Build Information Security Awareness & Culture: Design and own the security awareness training program, ensure all employees understand their security obligations, and build a proactive security culture across engineering, operations, legal, and business teams. Requirements - 7–10 years of experience in information security, risk, GRC, or compliance operations, with meaningful ownership; preference for fintech, crypto infrastructure, or B2B SaaS backgrounds - Demonstrated track record of building a compliance certification program from scratch; in-depth knowledge of SOC 2, ISO 27001, CMMC, HIPAA, GDPR, NIST 800-53, etc. - Hands-on experience with GRC automation platforms (Vanta, Drata, or equivalent), cloud security environments (AWS preferred), and BCP/DR program design - Proven experience managing external audit relationships end-to-end, including auditors, penetration testing firms, and compliance vendors - Working understanding of AWS, GCP, and Azure, including embedding security controls into DevOps workflows and IaaS deployments - Preferred certifications: Cloud+, CySA+, CISSP, or CISM Nice to Have - Crypto-native familiarity: knowledge of digital assets, stablecoins, or blockchain infrastructure, including smart contract security risk and on-chain monitoring tools (BlockAid, Chainalysis, or similar) - Regulatory exposure: familiarity with GENIUS Act, MiCA, DORA, or other emerging digital asset and financial services regulatory frameworks - Multi-entity experience: prior experience operating across a multi-entity structure (US operating entity, Cayman HoldCo, Swiss Foundation, or equivalent) Location New York City — ability to work multiple days per week in our NYC hub. Compensation & Benefits - Competitive base salary with equity/token grant commensurate with experience - Comprehensive healthcare insurance coverage plus wellbeing allowance and gym membership - Customizable IT setup with access to top-notch equipment - Annual professional development budget including conferences and company events - Global team with flexibility to work remotely or from hubs in NYC or Berlin

Full-Stack Engineer

Merciv

NYCOn-siteFull-time$140k – $170k

Base

About Merciv Merciv is an applied AI and data analytics company building the intelligence layer for enterprise decision-making. The platform connects an organization's entire data landscape — internal systems, social media trends, industry reports, consumer behavior signals — into a single coherent intelligence layer that surfaces insights and automates workflows that used to take analysts weeks. The platform drives 8-figure improvements in gross margins for Fortune 500 retailers. Founded by a technical team with deep innovation and graph database backgrounds. Raised $14M in seed funding. Zero attrition — no one has left the company. About the Role This is a mid-level full-stack role. You'll work across every layer of Merciv's platform — from backend services that process enterprise data at scale to frontend interfaces that make intelligence accessible and actionable. The team uses a DRI (Directly Responsible Individual) model — you own major product features from conception to launch, not just contribute to them. Key Responsibilities - Build and ship features end-to-end — backend services in Go/Python and frontend experiences in React/TypeScript - Design APIs, data models, and service architectures that support Merciv's agentic AI capabilities - Create intuitive interfaces that translate complex enterprise data into clear, actionable workflows - Collaborate with ML engineers to bring AI-driven features to production - Own features through the full lifecycle: scoping, architecture, implementation, testing, deployment, and iteration - Work directly with enterprise customers and stakeholders to understand real-world needs - Contribute to infrastructure, tooling, and developer experience as the engineering team scales Benefits - Health, dental, vision, 401k - Home office stipend, flexible PTO - Ground-floor equity at a well-funded seed-stage company

Senior Backend Engineer

Merciv

NYCOn-siteFull-time$160k – $240k

BaseTON

About Merciv Merciv is an applied AI and data analytics company building the intelligence layer for enterprise decision-making. The platform connects an organization's entire data landscape — internal systems, social media trends, industry reports, consumer behavior signals — into a single coherent intelligence layer that surfaces insights and automates workflows that used to take analysts weeks. The platform drives 8-figure improvements in gross margins for Fortune 500 retailers. Founded by a technical team with deep innovation and graph database backgrounds. Raised $14M in seed funding. Zero attrition — no one has left the company. About the Role This is the highest-priority hire. The focus is on two things: (1) architecture and scale — making sure the platform can sustain significantly increased usage as enterprise onboarding ramps up, and (2) building innovative new features with architecturally sound decisions that hold up for years. This is a DRI (Directly Responsible Individual) role — a hands-on senior IC who can own systems end-to-end. Key Responsibilities - Design, build, and scale backend services using Go and Python that power autonomous intelligence for enterprise clients - Architect data ingestion and processing pipelines that handle millions of data points across internal and external sources - Build and maintain APIs that serve the agentic AI platform, supporting real-time decision-making at enterprise scale - Work with the graph database layer and production graph RAG system — a core technical differentiator - Collaborate with ML/AI engineers to integrate predictive and prescriptive models into production workflows - Own system reliability — design for fault tolerance, observability, and performance under high-throughput conditions - Contribute to architectural decisions that shape the long-term trajectory of the platform - Mentor engineers and establish backend engineering best practices as the team scales Benefits - Health, dental, vision, 401k - Home office stipend, flexible PTO - Ground-floor equity at a well-funded seed-stage company

Senior ML/AI Engineer

Merciv

NYCOn-siteFull-time$180k – $225k

BaseTON

About Merciv Merciv is an applied AI and data analytics company building the intelligence layer for enterprise decision-making. The platform connects an organization's entire data landscape — internal systems, social media trends, industry reports, consumer behavior signals — into a single coherent intelligence layer that surfaces insights and automates workflows that used to take analysts weeks. The platform drives 8-figure improvements in gross margins for Fortune 500 retailers. Founded by a technical team with deep innovation and graph database backgrounds. Raised $14M in seed funding. Zero attrition — no one has left the company. About the Role As a Senior ML/AI Engineer, you'll build and deploy the intelligent systems at the core of Merciv's platform. This is applied AI at its most impactful — not research for the sake of papers, but production systems that reason, forecast, and act autonomously across complex enterprise data landscapes. You'll develop the models and agentic architectures that power demand forecasting, consumer intelligence, competitive analysis, and autonomous decision-making. Key Responsibilities - Design, build, and deploy ML models for demand forecasting, time series prediction, consumer sentiment analysis, and anomaly detection at enterprise scale - Develop and iterate on Merciv's agentic AI architecture — building systems that reason across heterogeneous data sources and take autonomous action - Build and maintain robust ML pipelines: data preprocessing, feature engineering, model training, evaluation, and production deployment - Architect and improve the production graph RAG system — a core technical differentiator - Architect RAG systems and LLM integrations that power natural language interfaces and autonomous workflows - Collaborate with backend engineers to ensure models are production-grade — optimized for latency, reliability, and scale - Own model performance end-to-end: monitoring, retraining, and continuous improvement in production - Stay at the frontier of AI research and bring relevant innovations into the platform Bonus Skills - Experience with graph databases or graph RAG systems (major plus — core to Merciv's stack) - Background in retail, supply chain, or demand forecasting domains - Experience with graph neural networks or knowledge graphs - Familiarity with MLOps platforms and model serving infrastructure - Contributions to open-source ML/AI projects or published research Benefits - Health, dental, vision, 401k - Home office stipend, flexible PTO - Ground-floor equity at a well-funded seed-stage company

Head of Security / OpSec Specialist

Confidential

United StatesRemoteFull-time$150k – $200k

TONDeFi

About the Company Our client is a DeFi-native security protocol dedicated to protecting Web3 ecosystems from exploits and vulnerabilities. They work with leading protocols to audit smart contracts, structure coverage, and respond to security incidents — sitting at the intersection of on-chain security and institutional-grade risk management. The Role They're looking for a seasoned security operator who has lived and breathed both Web2 infrastructure security and the unique threat landscape of Web3. You'll own internal security posture end-to-end from hardening operational systems to advising on threat models that span on-chain and off-chain vectors. This is not a purely advisory role; you'll roll up your sleeves and build. What You'll Do - Own and continuously evolve internal OpSec policies, processes, and tooling - Audit and harden infrastructure across cloud, endpoint, network, and identity - Build and run incident response playbooks for both Web2 and Web3 attack surfaces - Assess third-party integrations and vendor security posture - Advise internal teams on security-conscious development and operational practices - Stay ahead of emerging threats in the DeFi and broader crypto security space What We're Looking For - Proven background in Web2 security pretesting, red teaming, SecOps, or equivalent - Hands-on experience designing and enforcing OpSec frameworks at an organisational level - Significant Web3 exposure ideally having served as Head of Security or equivalent at a protocol, foundation, or major DeFi project - Deep understanding of on-chain attack vectors: key management, wallet security, multisig hygiene, smart contract risk - Ability to translate complex security posture into clear communication for non-technical stakeholders - Comfortable operating autonomously in a lean, fast-moving team Nice to Have - Experience with audit firms or security research - Background in bug bounty programs or responsible disclosure - Familiarity with coverage/insurance structures in DeFi - Security certifications (OSCP, CISSP, CEH or equivalent)