About the company
Founded in 2018 by professors of Yale University and Columbia University, CertiK is a pioneer in blockchain security, utilizing best-in-class AI technology to secure and monitor blockchain protocols and smart contracts. CertiKās mission is to secure the cyber world. Starting with blockchain, CertiK applies cutting-edge innovations from academia into enterprise, enabling mission-critical applications to be built with security and correctness. CertiK is one of the fastest growing and most trusted companies in blockchain security and has become a true market leader. To date, we have collectively worked with over 1800 enterprise clients, helped secure over $310 billion worth of digital assets, and detected over 31,000 vulnerabilities in blockchain code. Our clients include leading projects such as Aave, Polygon, Binance Smart Chain, Terra, Yearn, and Chiliz. CertiK just raised over $140 million and backed by Coatue, Tiger Global, Sequoia, and Hillhouse Capital.
Job Summary
Responsibilities
šConduct in-depth security evaluations on blockchain nodes, validators, consensus mechanisms, mempool behavior, networking layers, and chain modules. šReview and analyze blockchain frameworks such as Cosmos SDK, CometBFT, Geth, Hyperledger, and other L1/L2/L3 infrastructures. šIdentify security issues related to consensus safety, chain halting, permission models flaws, block production vulnerabilities. šImplement and run custom scripts and test scenarios to simulate real-world validator/network behaviors, chain stress conditions, and edge cases.
Requirements
šStrong written and spoken English communication skills. šHigh diligence and strong attention to detail, especially in multi-step testing and long-running experiments. šSolid understanding of blockchain architecture and node internals (e.g., Cosmos SDK / CometBFT, Go-Ethereum (Geth) internals, and Hyperledger Fabric / Besu) šStrong scripting & automation skills with Python or Bash šFamiliarity with Docker and containerized testing environments. šPrior experience in manual Web3 security auditing is preferred, but not required.
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