Senior Blockchain Security Engineer
GeminiNew York, New York, United States • San Francisco, California, United States
Posted September 24, 2025
140000 - 200000 USD year
Full Time
About the Company
Gemini Trust Company, LLC (Gemini) is a leading cryptocurrency exchange and custodian founded in 2015 by Cameron and Tyler Winklevoss. The company specializes in buying, selling, staking, and securely storing digital assets like Bitcoin and Ethereum while adhering to strict fiduciary obligations and banking compliance standards. Gemini's commitment to regulatory adherence and high security makes it a distinctive player in the cryptocurrency industry.
Job Description
Gemini is seeking a Senior Blockchain Security Engineer to join their Application Security team. The role involves researching, developing, and implementing secure on-chain software development practices. This involves working closely with on-chain engineering and product teams to identify and mitigate security vulnerabilities across Web3 products. The role requires in-person attendance at either San Francisco or New York City office twice a week.
Requirements
- 5+ years of experience in application security, Web3 security, or similar roles
- Strong background in Web3 security reviews such as smart contract audits, blockchain protocols, and dApps
- Ability to perform design reviews, threat modeling, secure code reviews, or penetration testing with an attacker mindset
- Experience with secure key management and wallet systems
- Familiarity with blockchain security tools (slither, echidna, etc)
- Some background in development or scripting experience (Python, Scala, C++, JavaScript, etc)
Benefits
- Competitive starting salary
- Discretionary annual bonus
- Long-term incentive in the form of a new hire equity grant
- Comprehensive health plans
- 401K with company matching
- Paid Parental Leave
- Flexible time off
