Senior Security Engineer
Job Description
About the Company Born from groundbreaking research at Columbia University and Yale University, CertiK is a leading Web3 security company focused on securing blockchain protocols, smart contracts, and decentralized applications through cutting-edge security research, formal verification, and AI-powered technology. Founded in 2017 and headquartered in New York City, CertiK provides end-to-end security solutions including smart contract audits, penetration testing, on-chain monitoring, incident response, and compliance services for some of the largest projects in the digital asset ecosystem. Today, CertiK supports thousands of enterprise clients and Web3 projects globally, with a distributed international team spanning North America, Asia, and Europe. The company is backed by leading investors including Coatue, Goldman Sachs, Insight Partners, and Sequoia Capital, and has been recognized by organizations such as the World Economic Forum and CB Insights for its contributions to blockchain security innovation. About You You are proactive, reliable, and enjoy helping people solve problems. You are highly organized, eager to learn, and comfortable supporting both technical and non-technical teams. You enjoy being hands-on, can adapt quickly in a fast-paced environment, and are willing to take ownership of day-to-day operational tasks to help keep the office and systems running smoothly.
Requirements
Responsibilities Work with external blockchain developers to audit codes & secure products (smart contracts, protocols & apps/Dapps). Establish/enforce security policies, manage security vulnerabilities, respond to incidents/exploits & write analysis reports. Monitor security breaches, defend systems from cyberattacks & provide technical consulting services in cybersecurity. Conduct penetration tests on web/mobile (Android & iOS) & client application, perform external/internal network security assessment. Review source code/security design, conduct threat modeling & provide guidance to software development teams. Contribute to internal security tools & create new ones for improving security services with best engineering practices. Use static/dynamic analyses to identify flaws or vulnerabilities in smart contracts & propose recommendations. Assess sandbox/VM/network/core distributed-system code, identify vulnerabilities & build PoC exploits. Conduct security research, publish findings in technical blog posts & speak at conferences/tech talks/X Spaces, showcasing technical expertise/insights. Requirements Master’s degree in Security Informatics/Cybersecurity or a related field. In-depth knowledge of solidity/smart contract security/Cryptography/Blockchain technology. Technical expertise in Web3 security, threat/vulnerability management, penetration testing & security review for programs written in Java/JavaScript/Python/C/C++/PHP/Go. Familiar with cloud platforms such as AWS/Azure/GCP & proficient in Python/JavaScript.
About CertiK
CertiK is a pioneer in securing the Web3 landscape, leveraging cutting-edge formal verification technology and AI to audit and monitor blockchain protocols and smart contracts. Our mission is to raise the security standards of the decentralized world, protecting billions of dollars in digital assets from vulnerabilities and malicious actors. We are at the forefront of blockchain security, ensuring trust and transparency across the crypto ecosystem for projects ranging from DeFi and NFTs to Layer 1s. Our culture thrives on innovation, precision, and a shared passion for a safer Web3. We foster an environment where challenges are met with collaborative problem-solving, and continuous learning is encouraged. Team members are empowered to shape the future of blockchain security, working alongside world-class experts in cryptography, cybersecurity, and artificial intelligence. We value intellectual curiosity, rigorous analysis, and a commitment to excellence in all that we do. Joining CertiK means becoming an integral part of a global team that is truly making an impact. You'll contribute to groundbreaking security solutions, protect the integrity of decentralized finance, and help build a more secure digital future. If you're a talented individual passionate about blockchain, cybersecurity, and making a tangible difference in the Web3 space, we invite you to explore our opportunities and help us secure the next generation of the internet.
Ready to Apply?
To submit your application for this position, please visit CertiK's official website and follow their application process.