CareerPlan

Senior Engineer, Backend, Bill Pay

New York, NY (HQ)Full-time2026-11-10 → 2026-11-11

Core

Build and own core components of the accounts payable system, including payment execution, bill intake, AI-powered extraction, approvals, and accounting sync for businesses.

Role type

Senior Backend Engineer (Payments/Finance)

Builds

Automated accounts payable workflows handling ACH, check, card, and international transfers for 85,000+ companies.

Domain

Fintech / Accounts Payable / Payments

Deliverable

production ML models

Required skills

Backend system design, API development, asynchronous workflows, system design for financial correctness, idempotency, ERP/accounting integrations, LLM/OCR application, high-volume event-driven scaling.

Preferred skills

Experience with accounts payable, payments, money movement, NetSuite, QuickBooks, LLMs, OCR, document processing.

Responsibilities

Own design and evolution of core Bill Pay system areas, build payment workflows with safeguards, build AI-powered AP automation, design data models for traceability, build reliable ERP integrations, improve system reliability and observability, drive technical direction and mentorship.