Senior Software Engineer, Fintech Products

Mural Group•New York, NY
•$220,000 - $300,000•Onsite

About The Position

A fast-growing, venture-backed software and payments company is building payroll, bill pay, and banking features from scratch. The Senior Software Engineer will establish the patterns used by the company's money-moving systems. The role is based onsite in New York, NY, five days a week, and pays $220,000–$300,000 plus equity. Mural Group is recruiting for this position on behalf of a client.

Requirements

  • At least 5 years of experience building production backend systems, ideally using TypeScript or Node.
  • Experience with transaction guarantees, including idempotency, retries, and atomicity.
  • Deep PostgreSQL expertise.
  • Precision in reconciliation and rounding.

Nice To Haves

  • Experience with payroll, banking, or audited ledger systems.
  • Experience with ACH, payment processors, or accounting integrations.
  • Experience directing AI coding agents.

Responsibilities

  • Build payroll and bill pay from the ground up.
  • Build ledgers, embedded accounts, and accounting syncs.
  • Set standards for idempotency, retries, and reconciliation.
  • Identify root causes of discrepancies and fix them permanently.

Benefits

  • Equity.
  • Visa sponsorship is available; H-1B transfers are preferred.
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