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OA

Oana Asoltanei

Software Engineer / Security Researcher

Timisoara, Romania

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With 8 years of experience in software engineering and 1.5 years specializing in Web3 security, I bring strong abilities in designing, building, and maintaining projects, with a particular emphasis on DeFi security. I've worked across the entire project lifecycle, leading multiple Android security-focused initiatives from initial concept through to production-grade implementation. I've also developed tailored business logic solutions for lithography, merchandising, and logistics applications. Currently, I focus on security research, actively participating in audit competitions, bug bounty programs, and private audits - primarily targeting the EVM and Stacks ecosystems, with additional experience in Solana.

Work Preferences

Salary

USD 100,000

Skills

Stacks/Clarity10/10
Solidity10/10
Python10/10
EVM10/10
Smart Contract Security Auditing10/10
Android Security (8/10)Foundry/Forge (8/10)Fuzzing (8/10)Java (8/10)MongoDB (8/10)PostgreSQL (8/10)Formal Verification (7/10)Zero-Knowledge Proofs (7/10)Solana Security (6/10)Docker (6/10)Hardhat (6/10)AWS (6/10)TypeScript (6/10)GCP (6/10)

Work Experience

Web3 Security Researcher

Freelancer

Jan 2025 โ€” Present

Helped secure $1B+ in TVL through security audits over 30+ engagements. Secured 15+ codebases through private security audits in collaboration with ClarityAlliance and CybaSecurity, spanning EVM, Stacks, and off-chain infrastructure. Ranked #1 in Solayer Bridge contest and placed top 10 in eight contests. Judged 3 competitions and triaged bug bounties on Cantina. Audit coverage includes yield-generating tokens, token launch platforms, ERC-7540/ERC-4626 vaults, cross-chain systems, borrowing/lending protocols, order books, AMM and DLMM, and off-chain infrastructure.

Senior Software Engineer

HTEC Group

Jan 2023 โ€” Mar 2025

Developed an automated testing framework for the reticle handler module of cutting-edge lithography machines. Optimized system level testing efficiency, execution time, and coverage.

Python Software Engineer

SellerEngine

Apr 2022 โ€” Dec 2022

Developed features and resolved bugs across multiple Python-based logistics systems supporting automated product sourcing, shipping, and Amazon marketplace sales. Migrated logistics systems from Amazon MWS API to Selling Partner API.

Android Security Researcher

Bitdefender

Nov 2017 โ€” Mar 2022

Engineered an Android SDK identification algorithm processing >0.5TB of new apps daily with 97%+ accuracy identifying 600+ third-party libraries. Reverse engineered 1,000+ Android malware applications. Built fully automated malware signature generation system for zero-day malware families. Reduced Dalvik bytecode decompiler loading time by over 30%.

Junior Programmer

Continental

Feb 2017 โ€” Nov 2017

Contributed to the development and testing of internal web applications.

Education

Politehnica University of Timisoara

Bachelor ยท Computer Science

2016 โ€“ 2021