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GermΓ‘n KΓΌber

Senior Blockchain Engineer β€” Rust, MEV Infrastructure, Multi-Chain Systems

Las Palmas, Spain

🟒Aping In

Senior blockchain engineer with 15+ years in distributed systems and 4+ years shipping production blockchain infrastructure in Rust. Specialized in MEV searcher pipelines and ultra-low-latency execution across EVM and Solana, processing $50M+ in daily on-chain volume. Hands-on with Flashbots and Jito ecosystems. Multi-ecosystem fluency including EVM, Solana, StarkNet, and Polkadot/Substrate. Active open-source contributor and Microsoft MVP.

Work Preferences

Salary

USD 110,000 – 160,000

Skills

MEV Infrastructure10/10
Rust10/10
MEV9/10
EVM (Ethereum, Arbitrum, Optimism)9/10
Solana / Jito Stack9/10
Flashbots Stack (9/10)System Design (9/10)Tokio / Async Rust (9/10)DEX Integration (Uniswap, Curve, Raydium) (9/10)Distributed Systems & Low-Latency Networking (9/10)Blockchain (9/10)EVM (8/10)TypeScript (8/10)C# (8/10)C# / .NET (8/10)Zero Knowledge (8/10)Python / Cython (8/10)Prometheus / OpenTelemetry (8/10)Smart Contracts (Solidity) (8/10)Solana (8/10)Cryptography (8/10)LLM Orchestration / AI Systems (8/10)Domain Driven Design (8/10)Zero-Knowledge Proofs (Noir, Barretenberg, Cairo) (7/10)Azure (7/10)Docker (7/10)Foundry (7/10)Foundry / Anchor (7/10)Hardhat (7/10)Huff (7/10)JavaScript (7/10)Kubernetes / Docker / AWS (7/10)LLM System Design (7/10)Polkadot / Substrate / FRAME (7/10)Prometheus (7/10)StarkNet / Cairo (7/10)TypeScript / JavaScript (7/10)AWS (7/10)Go (6/10)

Work Experience

Fractional CTO

Rocking Product

Apr 2025 β€” Nov 2025

Led research on LLM architectures, evaluation methods, and emerging techniques. Redesigned AI and LLM-powered modules improving latency and accuracy. Designed end-to-end LLM system workflows with context pipelines and retrieval strategies. Provided technical leadership to engineering team.

Lead AI Architect (Technical Creator)

KliverAI

Apr 2025 β€” Present

Designed and built full architecture of Kliver, an AI-driven conversational simulation platform (Python + .NET + Kubernetes). Implemented low-latency real-time audio pipelines using OpenAI Realtime API and SignalR. Developed adaptive simulation engine with LangGraph and RAG-powered personalization. Built internal data pipelines for analytics and performance metrics.

Fractional CTO

Rocking Product

Apr 2025 β€” Nov 2025

Led technical roadmap for an early-stage product, inheriting an 8-person engineering team. Shipped AI-powered features using Python (FastAPI, LangChain). Cut combined API and cloud spend by 45% through model selection, prompt compression, and semantic caching. Led full-stack migration from JavaScript to .NET.

Lead AI Architect & Co-Founder

KliverAI (Own Venture)

Apr 2025 β€” Apr 2026

Designed a Zero-Knowledge proof system using Noir, Barretenberg, and Garaga on StarkNet. Owned technical strategy and platform development on a polyglot stack (Python, .NET, Kubernetes, AWS). Architected real-time audio pipelines with sub-200ms latency. Built multi-agent simulation engine on LangGraph with RAG-powered personalization. Integrated OpenAI, Anthropic, and Gemini with dynamic model routing.

Lead Software Engineer

Borderless Capital / CTF. Capital

Aug 2021 β€” Apr 2025

Designed and implemented high-performance MEV searcher pipelines in Rust for EVM and Solana. Built custom transaction delivery systems achieving sub-slot execution. Developed strategy logic for liquidation detection, arbitrage, and cross-chain modeling. Implemented low-latency monitoring using Prometheus. Conducted research on zero-knowledge technologies and L2 ecosystems.

Lead Software Engineer (Blockchain / MEV)

Borderless Capital / CTF Capital

Aug 2021 β€” Apr 2025

Shipped and operated production MEV searcher infrastructure in Rust and Python/Cython across EVM and Solana. Integrated with Flashbots and Jito ecosystems. Pipelines processed 10K+ opportunities/day from $50M+ daily on-chain flow, contributing $100K+ annual P&L with sub-10ms p99 latency. Built custom transaction delivery infrastructure, strategy logic for liquidations and multi-hop arbitrage, and low-latency observability. Reverse-engineered Geth internals and owned 24/7 production reliability.

Senior Software Architect (Full-Stack)

Paramo Technology

Aug 2020 β€” Aug 2021

Owned end-to-end architecture for a large-scale online casino platform. Designed event-driven microservices using .NET for real-time game state, wallet operations, and regulatory reporting. Created internal training programs and partnered with product and operations teams.

Sr. Software Architect (Front-End / Back-End)

Paramo Technology

Aug 2020 β€” Aug 2021

Led all architecture decisions for large-scale online casino platform. Conducted technical interviews and built high-performance engineering teams. Organized internal training sessions and collaborated across departments for platform scalability.

Software Architect (Full-Stack)

CloudX

Aug 2017 β€” Aug 2020

Led architecture decisions across multiple enterprise product lines. Designed Angular/React frontends and microservices backends using Domain-Driven Design. Delivered technical training and conference talks.

Software Architect (Front-End / Back-End)

CloudX

Aug 2017 β€” Aug 2020

Designed scalable Angular/React solutions and reusable UI components. Implemented microservices-based backend architecture and domain-driven designs. Delivered technical training and conference talks. Collaborated with clients through on-site visits.

Software Architect (Angular / .NET)

Majestic Hotel Group

Jan 2014 β€” Aug 2017

Designed and shipped full-stack features in Angular and .NET for hotel management platforms. Led migration from AngularJS to Angular 4 and redesigned data model toward event-oriented architecture.

Software Architect (Angular / .NET)

Majestic Hotel Group

Jan 2014 β€” Aug 2017

Developed full-stack features using Angular and .NET for hotel management applications. Led migration from AngularJS to Angular 4. Redesigned data model and refactored backend to event-oriented architecture. Defined development processes for deployments.

.NET Web Developer

Plus54

Aug 2009 β€” Mar 2014

Built .NET web applications, internal tooling, and mobile components. Integrated external APIs with unit testing and reliable data exchange patterns.

.Net Web Developer

Plus54

Aug 2009 β€” Mar 2014

Developed .NET web applications and internal tools. Designed and built early mobile application components. Integrated external services and APIs with unit tests.

Education

Polkadot Blockchain Academy

Polkadot Builder Program

2026 – 2026

Universidad Abierta Interamericana (UAI)

Systems Engineer Β· Systems Engineering

2017 – 2021