About the roleWe are looking for a hands-on Lead/Principal Engineer to own the technical direction of our money-movement core: wallets, deposits, payouts, settlement and balances. You will lead our move to a double-entry ledger, raise the reliability bar on the money path, and mentor a strong backend team, while still shipping code every week.
Responsibilities
- Own the architecture of our crypto payment gateway: checkout and payment pages, payment links, webhooks and merchant APIs
- Architect and evolve stablecoin/crypto deposit, payout, refund and settlement flows
- Lead the migration from counter-based balances to a ledger, with zero financial drift
- Design resilient integrations with custody and liquidity providers
- Define HLDs and review LLDs
- Set standards for API design, idempotency, webhooks, testing and observability
- Mentor engineers and partner with Product, Compliance and Finance Ops
Requirements
- 8+ years in backend engineering, 3+ leading technical direction in payments, fintech, exchange or custody
- Deep Node.js or Go experience in large, long-lived codebases
- Experience building or operating a payment gateway or PSP (checkout, payment status lifecycle, refunds, merchant webhooks)
- Track record as a software architect, or leading architecture and system design for production platforms
- Strong PostgreSQL: transactions, concurrency, safe migrations, performance tuning
- Proven design of idempotent, auditable money-movement and reconciliation systems
- Experience integrating third-party financial or custody APIs and signed webhooks
- Strong security mindset and clear written communication
Nice to have
- Rust or Go, or double-entry ledger experience
- Hands-on blockchain knowledge: UTXO and account-based chains, confirmations, fees, stablecoins on EVM, Tron or Solana
- AWS, Docker, OpenTelemetry, Prometheus, gRPC
Our stackTypeScript, PostgreSQL, REST / gRPC / WebSocket, AWS, Docker, Redis, NATS, OpenTelemetry, Ledger services.
Why join us
- Own a high-impact domain in a regulated, growing crypto payments business
- Work on real problems: ledgers, multi-chain settlement, card-network and exchange integrations