Gemini · 1 day ago
Staff Blockchain Security Engineer
New York, NY
Full-time
Hybrid
Lead/Staff
$168K/yr - $240K/yr
8+ years expGemini is a global crypto and Web3 platform that aims to provide trusted access to the decentralized future. As a Staff Blockchain Security Engineer, you will lead security reviews of Web3 products, develop secure development practices, and collaborate with engineering teams to enhance blockchain security.
CryptocurrencyFinanceFinancial ServicesFinTechWeb3
Responsibilities
Lead in-depth security reviews of smart contracts, blockchain protocols, and Web3 applications for architectural flaws, security vulnerabilities, and best practice violations
Collaborate and advise on-chain engineering teams on Web3 security best practices and vulnerability remediation
Design and implement secure on-chain SDLC processes for on-chain product teams
Develop, maintain, and improve security tooling for blockchain ecosystems (fuzzers, static analysis, etc.)
Partner with legal, compliance, and risk teams to address security, regulatory, and operational risks of blockchain features
Qualification
Required
8+ 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
Strong background in application security best practices and familiarity with common vulnerabilities (e.g. SSRF, race conditions, privilege escalations, etc.)
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.)
Familiarity with and ability to understand business objectives, business context, and security risk
Strong communication skills and the ability to collaborate on a cross-functional team
Preferred
Experience with formal verification of smart contracts
Prior experience in cryptocurrency exchanges, DeFi platforms, or NFT marketplaces
Active contributor to blockchain security communities, bug bounty programs, or published exploit research
Ability to define and execute a long-term blockchain security roadmap in partnership with engineering leadership
Benefits
Competitive starting salary
A 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
Company
Gemini
Gemini is a licensed digital asset exchange and custodian built for both individuals and institutions.
501-1000 employees
H1B Sponsorship
Gemini 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
2025 (2)
2024 (1)
Funding
Current Stage
Public CompanyTotal Funding
$499.9MKey Investors
RippleDraper DragonMorgan Creek Digital
2025-09-12IPO
2025-07-10Debt Financing· $75M
2022-06-20Secondary Market· $1M
Leadership Team
Tyler Winklevoss
Co-Founder & CEO
Cameron Winklevoss
Co-founder & President
Recent News
2025-12-26
2025-12-26
Company data provided by crunchbase