Blockchain Security Engineer

About the Company
CertiK is the largest blockchain security auditor and provides a comprehensive suite of tools to secure the industry at scale. To date, CertiK has worked with over 4,900 Enterprise clients, secured over $557 billion worth of digital assets, and has detected over 18,000 vulnerabilities in blockchain code. Our clients include leading projects such as OKX, Tether, Ripple, and Pancakeswap. Our investors include top VCs like Tiger Global, Coatue Management, Shunwei Capital and Hillhouse Capital as well as industry leaders like Coinbase Ventures and Binance.
About the Role 
We are seeking a Junior Blockchain Security Engineer with a strong security mindset and foundational technical expertise across smart contracts, blockchain nodes, and decentralized infrastructure. In this role, you will support Web3 projects by assisting in code audits, contributing to security tools, and conducting research under guidance. If you are eager to grow your career in blockchain security and passionate about securing decentralized technologies, we’d love to hear from you.

Responsibilities

•  Audit and review codebases for smart contracts, blockchain protocols, and decentralized applications (dApps) to identify and remediate vulnerabilities.
• Conduct guided security research, explore new attack vectors, and deliver actionable insights.
• Contribute to the design, development, and maintenance of internal security tools and frameworks.
• Support improvements to internal processes, methodologies, and service offerings, ensuring high-quality delivery for clients.

Requirements

• Bachelor’s, Master’s, or PhD in Mathematics, Computer Science, or Information Security.
• At least 1 years of hands-on experience with blockchain technologies, including: Smart contracts (EVM chains, Solana, Move, etc.), Blockchain protocols (nodes, SDKs, Cosmos, etc.)
• Experience in threat modeling, risk assessment, and security analysis.
• Proficiency in one or more programming languages: Rust, Go, Solidity, Python, etc.
• Passion for Cryptocurrency, DeFi, and Blockchain technologies.

Preferred Qualifications

• Solid academic or practical background in Mathematics, Cryptography, or Cybersecurity.
• Demonstrated experience conducting audits and collaborating with leading Web3 protocols.
• Recognized achievements such as published CVEs, or strong placements in Attackathons, Bug Bounties, or Audit Contests. Compensation
  Target annual salary for this role performed in the US is $102,000 - $180,000. The exact compensation at which this job is filled will be determined by the skills and experience of qualified candidates. CertiK accepts applications for this position on an ongoing basis. CertiK is proud to offer medical, vision, and dental insurance, 401(k) plan with company matching, life and accidental death and dismemberment insurance, HSA (with high deductible plan), FSA, and other benefits to all full-time employees, along with flexible paid time off and holidays. CertiK also offers a variable commission program for business development sales roles.  In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire. CertiK is proud to be an equal opportunity employer. We will not discriminate against any applicant or employee on the basis of age, race, color, creed, religion, sex, sexual orientation, gender, gender identity or expression, medical condition, national origin, ancestry, citizenship, marital status or civil partnership/union status, physical or mental disability, pregnancy, childbirth, genetic information, military and veteran status, or any other basis prohibited by applicable federal, state or local law.  CertiK will consider for employment qualified applicants with criminal histories in a manner consistent with local and federal requirements.   All CertiK employees are expected to actively support diversity on their teams, and in the Company.