Senior Engineer, Backend, Bill Pay

Job Overview

We are seeking a Senior Backend Engineer to join our Bill Pay team at Ramp. You will own a core part of our accounts payable system, focusing on areas such as payment execution, bill intake, approvals, or accounting sync. Your mission will be to ensure these systems are correct, reliable, and scalable as payment volumes grow.

About the Role

Ramp's Bill Pay team develops an end-to-end accounts payable system that automates bill intake, approvals, payment execution, and syncing with accounting systems. This is a critical product for finance teams, handling large sums of money daily. As a Senior Backend Engineer, you will be responsible for:

• Owning the design and evolution of a core Bill Pay system component
• Building payment workflows for ACH, check, card, and international transfers with strong safeguards
• Developing AI-powered AP automation, including invoice extraction and auto-coding
• Designing data models for accuracy and traceability
• Integrating with ERPs and accounting systems reliably
• Improving system reliability, performance, and observability

Responsibilities

• Own the design and evolution of a core Bill Pay system, such as payment execution, bill intake, approvals, or accounting sync, from technical design through launch, monitoring, and iteration.
• Build payment workflows that move money correctly across ACH, check, card, and international rails, with strong safeguards against duplicate, late, or incorrect payments.
• Build AI-powered AP automation, including invoice extraction, auto-coding, and agents that reduce manual review for finance teams.
• Design data models that keep every bill, approval, payment, and credit accurate and traceable through to the general ledger.
• Build reliable integrations with ERPs and accounting systems that stay consistent through retries, partial failures, and edits on either side.
• Improve the reliability, performance, and observability of Bill Pay systems as customers process larger payment volumes.
• Drive technical direction for your area and raise the engineering bar through design reviews, code reviews, and mentorship.

Requirements

• Experience designing, building, and operating production backend systems, including APIs, data models, and asynchronous workflows.
• A track record of owning a system or product area end to end and shaping its technical direction over time.
• Strong system design judgment, especially around correctness, idempotency, and reliability in systems where mistakes have real financial impact.
• Product sense: you care about the customer problem, not just the ticket, and you balance speed with quality.
• Clear communication and a collaborative approach to technical decisions across product, design, and engineering.

Nice to Haves

• Experience with accounts payable, payments, money movement, or other financial systems.
• Experience building integrations with ERPs or accounting systems, such as NetSuite or QuickBooks.
• Experience applying LLMs, OCR, or other automation to document processing or financial workflows.
• Experience scaling high-volume, event-driven systems.

Benefits

• Flexible PTO
• Centralized home-office equipment ordering
• Health and wellness stipend
• Budget for intra-office travel
• Weekly coffee stipend
• United States: 100% medical, dental & vision insurance coverage, One Medical annual membership, 401(k) with employer match, Fertility HRA (up to $10,000 per year), Parental leave: up to 16 weeks at 100% pay, Pet insurance, In-office perks: lunch, snacks, drinks, and more, Relocation expense coverage to NYC or SF (if needed)
• Canada: Group medical, dental, and vision coverage, Life, AD&D, and disability coverage, Fertility drug coverage (up to $4,000 lifetime), Group Retirement Plan with employer match (RRSP + DPSP), Parental leave: up to 16 weeks at 100% pay
• United Kingdom: Private medical insurance, Virtual GP and at-home care, Workplace pension with salary sacrifice option, Parental leave: up to 16 weeks at 100% pay

Salary

The salary range for this position is $204K - $280K.