Blockchain Security Expert – Security Audit Track

🕒 November 17, 2025

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CertiK

WebsiteLinkedInAll Job Openings

201 - 500 employees

Founded 2018

🌐 Web 3

🔐 Security

₿ Crypto

💰 $60M Series B on 2022-04

Web 3 • Security • Crypto

CertiK is leading the charge in enhancing security within the Web3 ecosystem. As the industry's foremost smart contract auditor, CertiK provides a comprehensive suite of tools designed to secure the Web3 space at scale. Their services include code security audits, smart contract audits, and blockchain audits, with an emphasis on provable trust and comprehensive security evaluations. With a track record of serving thousands of clients and scrutinizing numerous projects, CertiK is recognized for its formal verification expertise, including groundbreaking work in zero-knowledge proofs (zkProofs) and partnerships to strengthen blockchain integrity. They offer advanced services like KYC, penetration testing, and risk management, while maintaining compliance with prominent standards like SOC 2 and ISO 27001. CertiK has been acknowledged by tech giants like Apple and Samsung for its contributions to securing tech ecosystems.

📋 Description

• Perform end-to-end security services, including consulting, reviewing, auditing, verifying, testing, and delivering detailed security assessments for blockchain systems such as smart contracts, web3 protocols, L1/L2/L3 infrastructures, and dApps. • Conduct comprehensive manual code reviews to identify vulnerabilities, logical flaws, economic attacks, and non-obvious edge cases across Solidity, Golang, Rust or other blockchain languages. • Develop and refine threat models and attack surfaces, covering economic, technical, operational, and trust-assumption risks for blockchain protocols. • Design and execute security tests, including property-based testing and gas-related analysis.

🎯 Requirements

• Bachelor's degree in Security, Computer Science, Mathematics, Physics, and Engineering • The ability to efficiently triage and juggle multiple priorities and deadlines. • Specialist-level knowledge of cybersecurity and security auditing. Can write and deploy smart contracts/blockchain infrastructure and write tests with frameworks. • Familiar with classic attack vectors and vulnerabilities such as reentrancy, sandwich attacks, overflow/underflow • The ability to effectively communicate with the clients and internal team, both verbally in English and in writing, about security services and requirements. • [Preferred] Prior hands-on security auditing experience.

🏖️ Benefits

• medical, vision, and dental insurance • 401(k) plan with company matching • life and accidental death and dismemberment insurance • HSA (with high deductible plan) • FSA • flexible paid time off and holidays • variable commission program for business development sales roles