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Senior Software Engineer, Backend (Money Movement)

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Phantom

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IT - Software Development

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Job Description:

Staff Backend Engineer who blends systems thinking with product pragmatism and a real passion for crypto. You’ll design, maintain, and evolve the backend services and APIs that connect Phantom Cash to blockchains. You understand both client-server architecture and blockchain protocols, and you know how to balance reliability, quality, and speed. You communicate clearly across pods, document rigorously, and elevate the engineering bar through execution and mentorship. Your work will make Phantom Cash feel dependable, seamless, and ready to scale.

Job Responsibility:

  • 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 elevate the engineering bar through execution and mentorship
  • Make Phantom Cash feel dependable, seamless, and ready to scale

Requirements:

  • 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
What we offer:
  • Competitive salary and equity
  • Comprehensive insurance (medical/dental/vision) — 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

Additional Information:

Job Posted:
February 21, 2026

Employment Type:
Fulltime
Work Type:
Remote work
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