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Velev

Web3 Security Researcher & Senior Full-Stack Developer

๐Ÿ“ Bulgaria

๐ŸŸขAping In

Web3 Security Researcher with 25+ public contest participations, multiple top 10 placements, and 3 private audits. Expert in DeFi protocols (Lending & Borrowing, Staking, Perpetuals, Stablecoins, Options Trading, DEX, Yield Farming, Cross-chains & Bridges, and NFT-based contracts). Using core protocols like Uniswap V2/V3, Liquity & CDP, Bonding Curves, Governors, Aerodrome, Pancake, SushiSwap, L1 and L2. Accross Ethereum, Solana, Sui, Starknet, Cosmos. Also a Senior Full-Stack Developer with 5 years experience in JavaScript, TypeScript, React, C#, and Azure cloud.

Skills

Solidity10/10
DeFi Protocols9/10
Smart Contract Auditing9/10
Databases & ORMs8/10
EVM8/10
Foundry (8/10)JavaScript (8/10)Angular (8/10)Azure (8/10)C# (8/10)React (8/10)TypeScript (8/10)Uniswap V2/V3 (8/10)Microservices Architecture (7/10)Fuzzing (6/10)Cairo (6/10)Move (6/10)Solana (4/10)Starknet (4/10)Rust (4/10)

Work Experience

Web3 Security Researcher (Private Audits)

Independent / Private Clients

Mar 2026 โ€” Present

Participated in 3 private audits for Web3 DeFi protocols covering DEX systems with Uniswap V3, Staking, cross-chain and off-chain mechanisms including Starknet ecosystem and Cairo language. Proposed mitigations, conducted post-fix reviews, and communicated closely with protocol devs.

Web3 Security Researcher (Public Contests)

Independent / Contest Platforms

Mar 2025 โ€” Present

Participated in over 25 public contests across diverse Web3 protocols. Uncovered confirmed vulnerabilities with multiple top 10 placements including 2 top 5 finishes. Protocols covered: Lending & Borrowing, Staking, Perpetuals, Stablecoins, Options Trading, DEX, Yield Farming, Cross-chains & Bridges, NFT-based contracts. Ecosystems: Ethereum, Solana, Sui, Starknet, Cosmos. Tools: Manual review, Foundry, AI tools, Fuzzing.

Senior Full-Stack Web2 Developer

Independent / Various Clients

Jul 2021 โ€” Present

5 years of experience writing clean, well-structured code. Led teams, mentored junior developers, served as Product Owner, and consulted clients. Frontend: JavaScript, TypeScript, React, Angular, Micro-frontends. Backend: C#, JavaScript, TypeScript, Databases, ORMs, Microservices Architecture. Cloud: Azure, Azure Resources, Azure Integrations, Deployments, Pipelines, GitHub Pipelines.