Phantom

Software Engineer, Frontend / Full Stack (Identity Platform)

Undisclosed

Remote. The employer does not say where candidates may be based.

Location not stated

Employer listed it 13 months ago · Added 5 days ago

Been open since 13 months ago. Long-running listings are sometimes left up after the role is filled.

Salary

Not stated

Location

Location not stated

Timezone

Not stated

Contract

Full-time

Experience

Senior

Remote flexibility

Undisclosed

The listing is advertised as remote but does not state which countries or regions candidates may work from.

Why this role is Undisclosed

We only label a role Work from anywhere, Region restricted or Work from home when the employer's own wording says so. We checked this advert under our current rules and found no country or region eligibility requirement in it. We don't guess, so it stays Undisclosed until the employer publishes enough location information. Here is exactly what the advert left out.

Countries you can work from: Not stated. The advert only gives "Remote", which names no country you must live in.
Whether the work is remote: Confirmed by the employer: "We are around 180 people, fully remote"
Working hours: Not stated. No timezone overlap or set hours are mentioned, so assume nothing either way.

Worth a look all the same. Missing wording is usually a rushed job posting rather than a closed door, so ask where you can be based in your first message, before you write a tailored application.

What the employer says

Source listing states candidate location: "Remote"

What Nomaders makes of it

No residency or region requirement found in the job description
Check with the employer before assuming you can work from abroad

The quotes above are the employer's own words; the reading is ours. Always check the original listing and employment terms before working from another country.

About the 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.

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.

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.

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.

Web3/wallet or signing-flow experience.

Security- or money-adjacent experience (identity, payments, custody).

Rust experience (or strong interest in learning it).

Requirements

·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.

Benefits

·Competitive salary and equity
·Comprehensive insurance (medical/dental/vision)- Employee 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!)

How to apply

1Check the flexibility label above, undisclosed, matches where you plan to live and work.
2Tailor your CV to the role at Phantom, mentioning your remote working experience.
3Apply directly on the employer's careers page using the button below. Nomaders never handles your application.

Found 5d ago. Last checked 23 Sept. Always confirm the details on the original posting, salary and location can change after publication.

Listing sourced from Company boards.