Stanislav Trenev
Smart Contract Engineer
Sofia, Bulgaria
12 years in software engineering, 5 years in Blockchain, specializing in DeFi smart contract development and DeFi integrations. Led projects processing over $300M in stablecoin transaction volume with zero exploits. Active security researcher with critical and high-severity findings on bug bounty platforms.
Work Preferences
Salary
USD 120,000
Skills
Work Experience
Lead Smart Contract Engineer
Legion
Apr 2024 — Mar 2026
Architected and deployed ERC20 token sales, vesting, and distribution contracts processing $300M+ in stablecoin transaction volume. Designed protocol smart contract architecture, led security operations, managed external audits and bug bounty programs with zero exploits. Delivered and maintained unit tests using Foundry with 100% line and branch coverage.
Lead Smart Contract Engineer
Return Finance
May 2023 — Apr 2024
Developed 10+ ERC4626 yield-bearing vaults with integrations across Aave, Fluid, Ethena, Convex and others, securing $1M+ TVL. Designed governance token using LayerZero's OFT standard for cross-chain transfers across 10+ blockchains. Built automated yield-harvesting mechanism using Chainlink Automation, saving users over $50K in fees.
Technical Team Lead (External Contractor)
Ledger
Jul 2022 — Nov 2022
Led cross-functional team as external contractor to deliver an ERC721 metadata management tool, achieving successful go-to-market in under 6 months.
Smart Contract Engineer
LimeChain
Jan 2021 — Nov 2022
Contributed to multiple projects delivering smart contract development with 100% customer satisfaction. Engineered UniverseXYZ NFT auctions, marketplace, and minting contracts driving over $8M in NFT sales. Extended PoolTogether no-loss savings protocol fork to integrate BarnBridge as a yield source, managing over $100K in user deposits.
Senior Software Engineer
Bühler Group
Mar 2020 — Jan 2021
Senior Software Engineer
VMware
Mar 2019 — Mar 2020
Senior Software Engineer
FactSet
May 2016 — Jul 2018
Senior Software Developer
MentorMate
Jan 2016 — May 2016
Software Developer
KPMG
Apr 2015 — Jan 2016
Education
Cyfrin Updraft
Certification · Smart Contract Security
? – 2025
Consensys Academy
Certification · Certified Ethereum Developer (Online Bootcamp)
? – 2020
University of London
BBA · Business Administration
2014 – 2017
Sofia High School of Mathematics
Bulgarian National Diploma · Mathematics and Informatics
2003 – 2011