Senior FinTech Backend Engineer — Payroll & Ledgers
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Summary
Senior Backend Engineer responsible for the payroll and money-movement stack, designing double-entry ledgers, idempotent payment systems, and financial reconciliations using AI-guided coding tools.
Simplex is hiring engineers to own the payroll and money-movement stack in a NY-based on-site role. You will design double-entry ledgers, idempotent payment execution, and reconciliations, while partnering with platform engineering and store owners who rely on accurate payroll data.
You will lead the financial correctness patterns and drive adoption across teams, including AI-guided coding and guardrails for money-touching code.