Phantom · 3 months ago
Senior Software Engineer, Backend (Money Movement)
United States
Full-time
Remote
Senior Level, Lead/StaffPhantom is a modern money app used by tens of millions around the world, focusing on combining user-friendly financial tools with industry-leading security. The Senior Software Engineer, Backend will design and maintain backend services and APIs, ensuring a seamless experience for users while contributing to the growth of the platform.
BitcoinCryptocurrencyDecentralized Finance (DeFi)FinanceFinancial ServicesFinTechNon-Fungible Token (NFT)
Responsibilities
Design, maintain, and evolve the backend services and APIs that connect Phantom Cash to blockchains
Understand both client-server architecture and blockchain protocols, and balance reliability, quality, and speed
Communicate clearly across pods, document rigorously, and elevate the engineering bar through execution and mentorship
Qualification
Required
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
Preferred
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
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
Company
Phantom
Phantom is a crypto wallet that facilitates the buying, trading, and storing of cryptocurrencies, including NFTs and tokens.
Founded in 2021
51-200 employees
H1B Sponsorship
Phantom has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (4)
2024 (3)
2023 (4)
2022 (3)
Funding
Current Stage
Growth StageTotal Funding
$268MKey Investors
Paradigm,Sequoia CapitalParadigmAndreessen Horowitz
2025-01-16Series C· $150M
2022-01-31Series B· $109M
2021-07-14Series A· $9M
Leadership Team
Chris Kalani
CPO & Co-Founder
Francesco Agosti
CTO & Co-founder
Recent News
Tech Startups - Tech News, Tech Trends & Startup Funding
2026-01-16
Tech Startups - Tech News, Tech Trends & Startup Funding
2026-01-16
Company data provided by crunchbase