Staff Backend Engineer

Phantom is on a mission to connect the world to the freedom of open markets. Tens of millions of people globally use Phantom to access global markets like perpetuals, prediction markets, tokenized assets, stablecoins, and memes. Phantom users discover markets and cultural moments, building conviction through real-time data and verified performance of top traders. With self-custody and open network access, Phantom lets users control their financial moves in the same app they use to 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 trusted names like Hyperliquid, Stripe, Kalshi, and Visa to make innovative financial products accessible.

The company is fully remote, has around 180 employees, and is backed by a $150M Series C investment from a16z, Sequoia Capital, and Paradigm.

Responsibilities

As a Staff Backend Engineer, you will design, maintain, and evolve the backend services and APIs connecting Phantom Cash to blockchains. You must understand both client-server architecture and blockchain protocols, balancing reliability, quality, and speed. Your responsibilities include:

• Communicating clearly across teams and documenting rigorously
• Elevating the engineering bar through execution and mentorship
• Ensuring Phantom Cash feels dependable, seamless, and ready to scale

Qualifications

• A Bachelor's degree in Computer Science or related field, or equivalent practical experience

• A pragmatic engineering mindset, focusing on results and user impact rather than abstract purity

• Proactive and outcome-oriented, anticipating problems and pushing features to completion without waiting for perfect specs

• Strong communicator and pragmatic problem solver, explaining complexity simply and favoring progress over perfection

• Node.js / NestJS at scale, event-driven design (queues, retries, idempotency)

• REST API architecture: versioning, pagination, error models, authentication, rate-limiting

• Full-stack awareness, understanding trade-offs of state management (client vs server) and latency budgets

• Distributed-systems fundamentals: concurrency, ordering, retries, data consistency

Nice to Have

• Kubernetes + AWS operations, CI/CD, observability, on-call ownership

• Deep interest in crypto, keeping up with ecosystem changes, wallets, protocols, and security norms

• Previous hands-on experience in crypto or fintech (exchanges, wallets, payment rails, ledgers)

• Smart-contract and protocol understanding, knowing how on-chain programs interact with off-chain services

• Blockchain integration experience — Solana preferred, EVM acceptable

• Has shipped high-quality products in mature, high-bar engineering organizations

Why Work with Us

Phantom is a team of experienced builders in the blockchain and crypto industry. Our mission began with users seeking an easy, seamless path to accessing the crypto ecosystem. This passion has fueled our growth, onboarding over 7M+ active users in just over three years. Our dedication to a secure and seamless user experience has made us the leading wallet on Solana and our multi-chain approach enhances our platform's versatility.

There has never been a better time to work in crypto to help shape the future of innovation with a focus on the wallet experience.

• First impressions matter: Wallets are responsible for a user's first impression with crypto and onboarding new users into crypto. By ensuring a great first-time experience, we can supercharge the growth of the entire ecosystem.

• Make crypto easier to navigate: There is no easy way for users to discover and navigate all that crypto has to offer. Wallets have a unique opportunity to help users onboard to crypto and stay retained by exploring new things to do.

• We live in a multi-chain world: Currently supporting Solana, Ethereum, Polygon, and Bitcoin, with more networks to come.

Benefits

• Competitive salary and equity

• Comprehensive insurance (medical/dental/vision) - Employee 100% covered

• Stipend for your ideal remote setup

• Flexible hours and a supportive remote environment

• Unlimited vacation

• 401(k) retirement plan

• Monthly wellness benefit

• Weekly meal benefit

• Global off-sites