[Remote] Software Engineer, Frontend / Full Stack (Identity Platform)
Note: The job is a remote job and is open to candidates in USA. Phantom is a modern money app used by tens of millions globally, aiming to simplify and enhance consumer finance through crypto-powered tools. The role focuses on the Identity Platform, responsible for critical authentication processes and ensuring secure, reliable user experiences.
Responsibilities
- Own and evolve the signing path for every transaction in Phantom
- Build and harden authentication, unlocking, biometrics, and account access flows across web and mobile
- Ship passkeys (WebAuthn) and MFA improvements with a strong security/usability balance
- Own onboarding and key lifecycle flows: key generation/derivation, seed phrase flows, seedless registration, hardware wallet pairing
- Own sensitive key export/import experiences and related safety rails
- Write and maintain high-signal, non-flaky tests (unit/integration/e2e) for critical paths; ensure safe rollouts via monitoring and staged releases
Skills
- 7+ years of experience
- Strong TypeScript skills; comfortable shipping code across browser, Node.js, and mobile JS runtimes
- Proven ability to build high-signal, low-flake test suites for critical systems
- Familiarity with auth concepts and common mechanisms (sessions/tokens, MFA/OTP, WebAuthn/passkeys)
- Strong engineering fundamentals: system design, debugging, and production reliability
- Deeper experience with OAuth2/OIDC, WebAuthn internals, cryptography, or key management systems
- Web3/wallet or signing-flow experience
- Security- or money-adjacent experience (identity, payments, custody)
- Rust experience (or strong interest in learning it)
Benefits
- Competitive salary and equity
- Comprehensive insurance (medical/dental/vision) — 100% covered
- Stipend for your ideal remote set-up
- Flexible hours and a supportive remote environment
- Unlimited vacation: Take time when you need it (and we really mean it!)
- 401(k) retirement plan
- Monthly wellness benefit
- Weekly meal benefit
- Global off-sites
Company Overview
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