CertiK · 2 days ago
Sr. Security Engineer (Penetration Testing)
New York, NY
Full-time
Onsite
Mid, Senior Level
$100K/yr - $180K/yr
4+ years expCertiK is a pioneer in blockchain security, leveraging best-in-class AI technology to protect and monitor blockchain protocols and smart contracts. The primary responsibility of this role is for CertiK’s security-related services, including security consulting, security reviews, and penetration testing of applications in the blockchain space.
BlockchainCyber SecuritySoftwareWeb3
Responsibilities
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
Qualification
Required
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
Preferred
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
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
Holidays
Variable commission program for business development sales roles
Company
CertiK
CertiK leverages formal verification technology to mathematically ensure security in systems software.
201-500 employees
H1B Sponsorship
CertiK has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2020 (6)
Funding
Current Stage
Growth StageTotal Funding
$300.2MKey Investors
Sequoia CapitalCoatueIDG Capital
2022-04-22Series B· $60M
2022-03-29Series B· $88M
2021-12-01Series B· $80M
Leadership Team
Ronghui Gu
Co-Founder
Jason Nieh
Chief Scientist
Recent News
Crowdfund Insider
2026-01-07
2025-12-31
Company data provided by crunchbase