Senior Software Engineer, Payments

Posted 5 Days Ago
Be an Early Applicant
New York, NY, USA
In-Office
195K-245K Annually
Senior level
Financial Services
The Role
As a Senior Software Engineer at Warp, you'll develop and manage the financial infrastructure for payments, payroll, and taxation. The role involves creating robust systems for processing large payment volumes and ensuring compliance with regulations.
Summary Generated by Built In
About Warp

Warp is the AI-native Employee Management Platform for ambitious companies. Our platform includes HRIS, payroll, IT, benefits, tax compliance, and more - all built from scratch on an AI-native architecture from day 1.

Warp embeds itself into every part of a company's people operating layer, we process over half a billion $ annually in payroll, on track to grow to $2B.


Legacy vendors in our space built their businesses by profiting from complexity. Warp is built from day one for AI to be the primary operator, not a feature. Every advance in LLM capability widens our lead.


We hire people who ship constantly, own outcomes, and care about craft. We're in the office five days a week because speed and proximity are a competitive advantage at this stage. If you want to build something that automates an entire category of core work, not just another point solution, this is the place.
We've raised over $85M from top investors like Ashton Kutcher/Sound Ventures, Y Combinator, founders of Dropbox, Replit, SV Angel, and Homebrew Capital. Built by an obsessive team from MIT, Ramp, Brex, Google, Dropbox, Apple, and more.

About the Role

As a Senior Software Engineer focused on Payments at Warp, you'll build and own the financial infrastructure that powers Warp. Core ledgering, US and global payment rails, payroll engine, earnings calculations, tax engines, and the compliance layer around all of it. This is deeply technical work with real financial stakes. Very few engineers get to work on problems like this, at this scale, this early. You'll work directly with the CTO and have outsized influence over how we architect one of the most critical systems in the company.

What You'll Do
  • Own and scale Warp's core ledgering and payments infrastructure

  • Develop and own the payroll engine, earnings engine, and tax engine

  • Architect US and global payment rails for domestic and international payroll

  • Build fault-tolerant, auditable financial systems designed to process billions of dollars

  • Define the payments architecture roadmap in collaboration with the CTO

You'll Be Good for This Role If You
  • Have deep experience in payments, fintech, or financial infrastructure

  • Care intensely about correctness, auditability, and reliability

  • Have owned payments or fintech infrastructure at a high-growth startup

  • Understand the unique challenges of financial systems: idempotency, reconciliation, compliance

  • Love hard infrastructure problems with direct business impact

What You Need
  • 5+ years of software engineering experience

  • 2+ years working on payments, fintech, or core financial infrastructure

  • Experience building highly reliable, fault-tolerant distributed systems

  • Strong expertise in strongly typed languages

  • Deep understanding of financial systems and their unique constraints

  • Willingness to work from our NYC office five days a week

Benefits at Warp:
  • 100% Health Coverage: Comprehensive medical, dental, and vision plans for you and your dependents.

  • 401(k) Matching: Start investing in your future from day one.

  • Unlimited PTO: We offer flexible PTO, meaning you’re trusted to take the time you need to recharge while balancing your responsibilities and team commitments.

  • Commuter Benefits: Pre-tax commuter benefits for your daily trip to our NYC office.

  • Catered Lunch Daily: Great food, every day, on us. No meal prep, no decision fatigue.

  • Quarterly Offsites: Beautiful locations to connect as a team. Past locations include Spain and Catskills.

Warp is based in New York City, and we prioritize candidates who can commit to being on-site 5x per week. Please refer to the top of this page for this position's hiring location.

Skills Required

  • 5+ years of software engineering experience
  • 2+ years working on payments or fintech
  • Experience building highly reliable distributed systems
  • Strong expertise in strongly typed languages
  • Deep understanding of financial systems
  • Willingness to work from NYC office five days a week
Am I A Good Fit?
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The Company
HQ: New York, New York
12 Employees
Year Founded: 2023

What We Do

The payroll platform of choice for ambitious startups. Hire and pay in seconds, automate all compliance and busywork. Built for founders.

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