Software Engineer, Frontend / Full Stack (Identity Platform)

Role Description

Identity Platform is the trust root of Phantom: we own authentication, unlocking, onboarding/key generation, and the signing pipeline that every transaction flows through. This is a business-critical area where bugs can lock users out or put funds at risk. You'll ship TypeScript across browser, Node.js, and mobile runtimes (e.g., Hermes) to keep these foundations fast, secure, and reliable.

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.
• Ownt 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.

Qualifications

• Must-have: 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

Nice-to-have

• Deeper experience with OAuth2/OIDC, WebAuthn internals, cryptography, or key management systems
• Rust experience (or strong interest in learning it)

Why Work with Us

We are a team of experienced builders in the blockchain and crypto industry. Our journey began from users seeking an easy, seamless path to accessing the crypto ecosystem. This passion fueled our exponential growth, allowing us to onboard over 20M+ active users in just over three years; with our user base growing weekly. Our dedication to a secure and seamless user experience has made us the leading wallet on Solana as well as our multi-chain approach enhances our platform's versatility, meeting the needs of a diverse and growing user base. By staying at the forefront of technology and user expectations, we continue to innovate and set industry standards on self-custodial crypto wallets.

Benefits

• Competitive salary and equity
• Comprehensive insurance (medical/dental/vision) — 100% covered
• Stipend for your ideal remote setup
• 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