Certik
Certik52mo ago

Sr. Security Engineer (Penetration Testing)

United StatesUnited StatesRemoteFull-timesenior
EngineeringSecuritySecurity EngineerCybersecurity
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Quick Summary

Overview

Why Us? CertiK 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.

Technical Tools
awsazuregcpjavascriptpythontypescriptcode-reviewcybersecurity
Why Us?
CertiK 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.

About the Role
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. We are looking to hire someone with a passion for application security and penetration testing. This is a fun and challenging full-time position. If you are excited about hacking, threat modeling, scanning, auditing, designing, and enhancing the security of applications across the board then you will thrive in this role. While you work with clients, we will also provide you with plenty of opportunities to get involved with research and development efforts to help us raise the standards of blockchain security.
  • Perform security assessments on web, mobile, thick client applications, and browser extensions
  • Conduct external and internal network penetration tests
  • Perform security source code reviews
  • Perform cloud security reviews
  • Develop comprehensive pentest reports for both technical and non-technical audiences
  • Research and develop innovative techniques, tools, and methodologies for pentesting applications in the blockchain space 
  • Contribute to the community by developing tools, presentations, and blog posts
  • Passionate about cryptocurrency, DeFi, and blockchain, with a willingness to learn Web3 technologies such as smart contracts
  • Minimum of 4 years of experience in application security and penetration testing
  • Experienced in source code review for different languages, with a strong understanding of JavaScript and TypeScript
  • Experienced in mobile application penetration testing
  • Familiar with cloud platforms and their security risks, such as AWS, Azure, and GCP
  • Experience in programming with scripting languages such as Python and Bash
  • Solid understanding of cryptography
  • BS/MS/PhD in Computer Science or Information Security 
  • Strong spoken and written communication skills
  • Experienced in pentesting Web3 applications such as crypto exchanges, wallets, Dapps, and key custodian solutions 
  • Experienced in smart contract security audits
  • Familiar with browser extension architecture and security risks
  • Actively participate in the blockchain security community
  • OSCP, OSWE, OSCE, GWAPT, or comparable certification
  • Participated in bug bounty programs and audit contests
  • Published security-related blog posts and spoken at security conferences and/or local meetups

    • Location & Eligibility

    Where is the job
    United States
    Remote within one country
    Who can apply
    US
    Listed under
    United States

    Listing Details

    Posted
    January 12, 2022
    First seen
    March 26, 2026
    Last seen
    May 13, 2026

    Posting Health

    Days active
    47
    Repost count
    0
    Trust Level
    39%
    Scored at
    May 13, 2026

    Signal breakdown

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    CertiK is a leader in blockchain security, utilizing AI technology to monitor and protect blockchain protocols and smart contracts.

    Employees
    350
    Founded
    2018
    Domain
    certik.com
    Jobs
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    CertikSr. Security Engineer (Penetration Testing)
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