Blockchain Security Expert - Chain Security Evaluation Track
certik remote usDenver, CO
Blockchain Security Expert - Chain Security Evaluation Track
certik remote usDenver, COSenior L5
APPLY NOWBlockchain Security Expert - Chain Security Evaluation TrackCertiK is a pioneer in blockchain security, leveraging best-in-class AI technology to protect and monitor blockchain protocols and smart contracts. Founded in 2018 by professors from Yale University and Columbia University, CertiK's mission is to secure the web3 world. CertiK applies cutting-edge innovations from academia to enterprise, enabling mission-critical applications to scale with safety and correctness. The primary responsibility of this role is for CertiK's security-related services. Intersecting cybersecurity and blockchain, CertiK's security offerings include security consulting, security reviews, security auditing of smart contracts and blockchains, verification of smart contracts, penetration testing, and more. As a Security Engineer at CertiK, you will contribute to the security offerings of the company, working with the rest of the security team to deliver the best products and services. You might engage directly with CertiK's existing and future clients, participate in expanding security-related products and services, and follow the blockchain world on emerging security problems and trends.
Responsibilities:
Conduct in-depth security evaluations on blockchain nodes, validators, consensus mechanisms, mempool behavior, networking layers, and chain modules.
Review and analyze blockchain frameworks such as Cosmos SDK, CometBFT, Geth, Hyperledger, and other L1/L2/L3 infrastructures.
Identify security issues related to consensus safety, chain halting, permission models flaws, block production vulnerabilities.
Implement and run custom scripts and test scenarios to simulate real-world validator/network behaviors, chain stress conditions, and edge cases.
Requirements:
- Strong written and spoken English communication skills.
- High diligence and strong attention to detail, especially in multi-step testing and long-running experiments.
- Solid understanding of blockchain architecture and node internals (e.g., Cosmos SDK / CometBFT, Go-Ethereum (Geth) internals, and Hyperledger Fabric / Besu)
- Strong scripting & automation skills with Python or Bash
- Familiarity with Docker and containerized testing environments.
- Prior experience in manual Web3 security auditing is preferred, but not required.
What We Offer:
Opportunity to shape the national conversation on blockchain and security.
Collaborate with industry-leading security researchers, technologists, and global institutions.
Flexible work environment and mission-driven culture.
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Level
Senior L5
Location
Denver, CO
Occupation
Blockchain Engineers
Industry
Computer Systems Design Services
Posted
yesterday