Iaroslav Mazur
Solana Smart Contracts Engineer
π IaΘi, Romania (Remote)
Solana Smart Contracts Engineer with expertise in Rust/Anchor, EVM/Solidity, and security auditing. Built production Anchor programs (token vesting, Merkle airdrops), co-authored EIP-7809, contributed to REVM, Anchor, and Metaplex. Background in C/C++ embedded systems and desktop software engineering.
Work Preferences
Salary
USD 220,000 β 240,000
Skills
Work Experience
Solana Smart Contracts Engineer
Sablier Labs
Sept 2024 β Present
Designed and shipped two production-ready Anchor programs on Solana mainnet: Lockup (token vesting/streaming) and Merkle Instant (Merkle-proof airdrop campaigns). Built polymorphic streaming engine supporting linear and tranched vesting models. Integrated MPL Core NFTs, Chainlink oracles, and dual SPL Token + Token2022 support. Engineered security validation layer with checked arithmetic, custom error codes, and double-hash Merkle verification. Authored 3,100+ lines of tests using anchor-bankrun and Vitest.
Blockchain Engineer
Sablier Labs
Sept 2023 β Sept 2024
Led R&D on Sablier Mainnet for native blockchain payment integration. Implemented Multiple Native Tokens (MNT) feature for EVM rollup designs. Co-authored EIP-7809 (Native Tokens). Main contributor to SabVM, a fork of REVM (Rust Ethereum Virtual Machine).
Technical Consultant / Advisor
Lobby3
May 2023 β Jun 2023
Oversaw the DeVox project, conducting smart contract code review, quality assurance, and vulnerability identification.
Smart Contracts Security Auditor
Sablier Labs
Mar 2023 β Jul 2023
Audited Sablier V2-core, V2-periphery and PRBProxy smart contract repositories. Identified vulnerabilities and provided security recommendations. Collaborated with the team on implementation of fixes.
Smart Contracts Engineer
Pharo ACM
Oct 2022 β Aug 2023
Developed smart contracts and unit tests for the Pharo ACM protocol.
Software Engineer II
Bentley Systems
Jul 2020 β Mar 2024
Core developer of OpenTunnel Designer, a tunnel modeling desktop application. Led frontend and backend logic development. Conducted code reviews and mentored new team members.
C/C++ Software Developer (SpeechCore)
Continental
Dec 2018 β Jul 2020
Cross-platform embedded development (Linux & Windows). Developed real-time audio streaming to cloud speech recognition services. Unit/integration testing and automated test creation.
C/C++ Software Developer (Ford Audio)
Continental
Aug 2018 β Dec 2018
Automotive infotainment system development.
Education
Universitatea Alexandru Ioan Cuza
BSc Β· Computer Science
2015 β 2018