Security Engineer

Remote $150k–$250k middle 2 months ago full-time quality 8.2/10

security engineeringblockchainsmart contractsDeFicryptography

Support security architecture reviews for blockchain products, focusing on smart contract security, key management, and Web3 integrations
Implement and iterate on security controls for both on-chain and off-chain systems
Perform security assessments of smart contracts and blockchain infrastructure (manual review and tooling-assisted)
Participate in on-call rotation and incident response support as needed
Partner with engineering teams to integrate security best practices into the development lifecycle (threat modeling, secure design reviews, pre-release checks)
Support third-party security assessments and coordination with external auditors
Help maintain security documentation, runbooks, and training materials

3+ years of experience in security engineering or adjacent infrastructure/software engineering with a strong security focus
Working understanding of cryptography and blockchain security principles
Experience assessing and securing smart contracts and/or DeFi protocols (professional experience or meaningful open-source contributions)
Familiarity with security fundamentals for distributed systems (authn/authz, secrets management, network segmentation, logging/monitoring)
Exposure to incident response and security monitoring workflows
Ability to read code to identify and assess security risks; ability to write code in common scripting languages to support security solutions and automation
Strong communication skills with both technical and non-technical stakeholders

Competitive compensation including salary, future token rights, and/or equity (according to your preferences) — we re well-funded and believe that great talent deserves great compensation
Full benefits (medical, vision, and dental) and flexible vacation policy (PTO)
Small remote-first team across many countries — you ll be an early team member helping shape our vision, culture, and design practices
A+ colleagues — our team includes alumni from: Goldman Sachs, Blackrock, Two Sigma, Bridgewater, SpaceX, AWS, Meta, Google, Pinterest, McKinsey, Circle, Uniswap, Phantom
Best-in-class investors — we are proud to be backed by leading crypto experts and VCs, including Pantera Capital, Founders Fund and Coinbase Ventures

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