The self-custodial wallet for trading predictions, perps, and tokens across Solana, Ethereum, Bitcoin, Robinhood, HyperEVM, and more. Backed by Lightspeed and Sequoia.
About the role
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.
What they're looking for
- 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
More about this role
Phantom is on a mission to connect the world to the freedom of open markets. Tens of millions of people all over the world use Phantom to access global markets that never close, including perpetuals, prediction markets, tokenized assets, stablecoins and memes. Phantom users are able to discover the markets that matter and the cultural moments that shape them, building conviction through real-time data and the verified performance of top traders. With self-custody and access to open networks at its core, Phantom lets them control their financial moves in the same app they use to safely store or spend money worldwide.
Phantom has reached #1 in Google Play's finance category and consistently ranks in the top 50 apps across all categories. Phantom partners with many of the most trusted and influential names in finance like Hyperliquid, Stripe, Kalshi and Visa, to make the most popular and innovative financial products accessible to everyone.
We are around 180 people, fully remote, backed by a $150M Series C investment from a16z, Sequoia Capital and Paradigm.
Identity Platform is the trust root of Phantom: we own authentication, unlocking, onboarding/key generation, and the signing...
Browse similar: Startup jobs · Remote jobs