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0xusmanf/README.md

πŸ”— Usman Farooq | Certified Solidity Developer & Security Researcher

Tech Banner

πŸ”₯ About Me

Security-focused Smart Contract Developer with proven experience identifying high-impact vulnerabilities in public audits. Combines hands-on expertise in modern blockchain development (Solidity, Foundry) with a 5-year background in professional systems management. Adept at designing and deploying secure, smart contracts with advanced testing methodologies, including fuzzing and invariant testing.

πŸ” Core Expertise:

  • Smart Contract Auditing: Practical knowledge of different attack vectors like reentrancy, integer overflows, oracle manipulation, and gas inefficiencies.
  • Blockchain & Web3: Solidity, Foundry, EVM, DeFi, Off-chain Oracles, Blockchain Architecture, DevOps.
  • Security & Testing: Unit Testing, Fuzz & Invariant Testing, Attack Vector Analysis.
  • Tools & Platforms: Foundry, Static analyzer tools (Slither, Aderyn), Git, GitHub, Tenderly.

πŸš€ Current Focus:

  • Performing economic audits and security assessments for DeFi protocols.
  • Advancing expertise in assembly, formal verification and gas optimization for smart contracts.
  • Contributing to audit competitions like CodeHawks and Code4rena to enhance security skills.

πŸ’ͺ Key Skills Tested

  • Proficiency in Solidity development
  • Application of industry best practices
  • Smart contract security expertise
  • Mastery of industry-standard development tools
  • Protocol-specific knowledge
  • Blockchain DevOps skills
SSCD+ certificate

πŸ† Audit & Cyfrin Updraft Challenge NFTs / CTFs Achievements

  • Audit Competitions:
    • Participated in two public smart contract security contests, demonstrating a strong adversarial mindset.
    • Ranked #243 in CodeHawks, with identifying valid high & low-severity vulnerabilities.
    • Engaging in Code4rena audits to strengthen high-stakes smart contract security expertise.
  • Cyfrin Updraft Challenge NFTs / CTFs:
    • Exploited vulnerable smart contracts by developing and executing scripts for various attack vectors, including reentrancy, integer overflows, oracle manipulation, and Delegatecall.
    • Demonstrated security expertise by minting all challenge NFTs through smart contract exploitation.
    • On-Chain Proof: View minted NFTs on ZKsync Mainnet (link)

πŸ“§ Let's Connect!

LinkedIn


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