Senior Software Engineer, Backend (Money Movement)

Stack

Responsibilities

• ▹Design, maintain and evolve the backend services and APIs that connect Phantom Cash to blockchains
• ▹Balance reliability, quality and speed
• ▹Communicate clearly across pods, document rigorously and raise the engineering bar through execution and mentorship

Requirements

• ▹Bachelor's degree in Computer Science or a related technical field, or equivalent practical experience
• ▹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
• ▹Pragmatic, results-focused engineering mindset

Nice to have

• ▹Kubernetes and AWS ops, CI/CD, observability, on-call ownership
• ▹Deep interest in crypto: wallets, protocols, security norms
• ▹Previous hands-on experience in crypto or fintech (exchanges, wallets, payment rails, ledgers)
• ▹Smart-contract and protocol understanding: 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

Soft skills

What we offer

• ▹Fully remote

About the company

Phantom's mission is to connect the world to the freedom of open markets. Tens of millions of people use it to access global markets; the company has around 180 people, is fully remote and is backed by a $150M Series C from a16z, Sequoia Capital and Paradigm.