Senior Software Engineer (Payments)

Remote · United States$150k–400kFull-timePosted 2 months ago

Lead efforts to reconcile transactions across multiple financial providers, including Stripe, Highnote, Checkbook, and JPMorgan, ensuring accuracy and consistency across systems
Ensure full alignment between internal records and customer-facing balances—what’s in the bank should precisely match what the customer sees
Contribute to the development and ongoing scalability of our general ledger infrastructure, supporting accuracy, resilience, and growth
Partner with our external ledger provider, Fragment, to build a reliable system capable of powering billions of transactions with speed and integrity
Design and implement new money movement flows across a variety of payment rails—including push-to-card and wire transfers—optimizing for cost, speed, and reliability
Own critical backend & platform projects end-to-end—from design to production ops
Push architecture that scales to billions in annual payment volume and real-time risk controls
Work closely with product and GTM leads to turn ambiguous problems into elegant code

Have 5+ years of professional experience building B2B or B2C SaaS products (FinTech, payments, or marketplace a plus)
Can dive deep into code (we use React, Ruby, Postgres—but great engineers pick up tools fast)
Communicate crisply across time zones
Prior payments or back office fintech experience is a plus
Thrive in zero-bureaucracy, high-ownership environments
Balance speed with rigor—automated tests, clean abstractions, clear docs

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