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Senior Security Engineer

Full Time

Website CertiK

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. CertiK’s 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.
About You
You’re a self-starter. You believe in tackling the most important problems, even if they are the most difficult problems. You’re comfortable with the unknown and understand that startup life means that you’re going to be wearing multiple hats. And that’s what motivates you. You’re accountable and obsessed with improvement, both in yourself and in others. You’re up to the challenge of building a world-class company that aims to be the infrastructure for more secure software for all.

Job Duties

  • Safeguard company’s computer networks/systems, design/implement security solutions to monitor security threats, protect sensitive data from infiltration and defend systems from cyber-attacks.
  • Establish/enforce security policies, manage security vulnerabilities and responses to incidents; monitor security breaches and provide technical consulting services in cybersecurity.
  • Conduct penetration tests on web/mobile (Android and iOS) & thick client application, and perform external/internal network security assessment.
  • Review source code/security design, conduct threat modeling, and provide direct guidance to software development teams.
  • Work directly with external Blockchain developers to audit code and secure products, including DeFi projects, crypto wallets, and exchanges.
  • Use Static & Dynamic analyses to discover flaws or vulnerabilities in smart contracts and propose recommendations to address them.
  • Conduct security research and publish findings in technical blog posts and/or present in security conferences.
  • Assist with scoping prospective/leading engagements from kickoff through remediation and develop comprehensive result reports for technical & non-technical audiences.


  • MS in Security Informatics/Cybersecurity or equivalent
  • Minimum 6-month experience with application (web/mobile) security/hardware & embedded system security/cryptography implementation security review/penetration tests.
  • Sound knowledge of solidity/smart contract/Blockchain technology
  • Expert technical skills in software development, binary reverse engineering, threat modeling & security review for programs written in Java/JavaScript/Python/C/C++/PHP/Go.
  • Familiar with cloud platforms such as AWS/Azure/GCP and proficient in Python/JavaScript.
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