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Senior Software Engineer, Backend (Money Movement)
Contract type
Ongoing
Work mode
Remote
Experience
Senior · Not stated
Level inferred from job title
Job description
Staff Backend Engineer at Phantom responsible for designing, maintaining and evolving the backend services and APIs that connect Phantom Cash to blockchains. The role blends systems thinking with product pragmatism and requires a strong interest in crypto.
At a glance
- Work mode
- Remote
What you'll do
- Design, maintain, and evolve the backend services and APIs that connect Phantom Cash to blockchains
- Balance reliability, quality, and speed
- Communicate clearly across pods and document rigorously
- Elevate the engineering bar through execution and mentorship
- Make Phantom Cash feel dependable, seamless, and ready to scale
What we're looking for
- Bachelors degree in Computer Science or related technical field or equivalent practical experience
- Pragmatic engineering mindset, focuses on results and user impact, not abstract purity
- Proactive and outcome-oriented: anticipates problems, pushes features to completion without waiting for perfect specs
- Strong communicator and pragmatic problem solver - explains complexity simply, favors 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: understands trade-offs of state management (client vs server) and latency budgets
- Distributed-systems fundamentals: concurrency, ordering, retries, data consistency
Nice to have
- Kubernetes + AWS ops; CI/CD; observability; on-call ownership
- Deep interest in crypto - keeps 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: knows 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
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!)
- 401(k) retirement plan
- Monthly wellness benefit
- Weekly meal benefit
- Global off-sites
Apply
About Phantom
Connect the world to the freedom of open markets
Phantom lets tens of millions of people access global markets that never close, including perpetuals, prediction markets, tokenized assets, stablecoins and memes. With self-custody and access to open networks at its core, Phantom lets users control their financial moves in the same app they use to safely store or spend money worldwide.
Key facts
- around 180 people
- Crypto / self-custodial crypto wallet
- Reached #1 in Google Play's finance category
- Consistently ranks in the top 50 apps across all categories
- Fully remote
- Backed by a $150M Series C investment from a16z, Sequoia Capital and Paradigm
- Onboarded over 7M+ active users in just over three years
- Leading wallet on Solana
- Supports Solana, Ethereum, Polygon and Bitcoin
Partners & customers
HyperliquidStripeKalshiVisa
What they value
- First impressions matter
- Make crypto easier to navigate
- We live in a multi-chain world