Senior Software Engineer, Developer Platform

New York, United StatesOn-site

Responsibilities

WHAT YOU'LL DO - Design, build, and maintain Warp's external APIs - Build webhook infrastructure: reliable delivery, retries, failure visibility - Build event log systems and the products that make them queryable by customers and partners - Build OAuth and authentication infrastructure for third-party integrations - Own SDK generation and developer tooling - Write and maintain developer documentation - Handle technical communications with integration partners and enterprise customers - Define the API

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 is built from day one for AI to be the primary operator, not a feature.
Every advance in LLM capability widens our lead.
ABOUT WARP Warp is building self-driving employee management.
You'll own the full developer experience, from the reliability of the underlying platform to the clarity of the docs, and be the primary interface between Warp's core systems and the developers who build on top of them.
experience building webhook systems, event streaming, or audit log infrastructure - Care deeply about API ergonomics, consistency, and documentation quality - Have owned a developer platform or external API at a high-growth startup - Understand the hard parts of external APIs: idempotency, versioning, backwards compatibility, and graceful failure - Are comfortable being the face of Warp's API: writing docs, talking to developers, owning the
Experience with SDK generation or developer tooling - Strong written communication skills - Willingness to work from our NYC office five days a week

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.
Payroll, tax compliance across thousands of jurisdictions, benefits, IT, and HRIS that runs autonomously so companies never have to think about back-office operations again.
The incumbents (ADP, Paylocity, Paychex) built their businesses by profiting from complexity.
Backed by $25M+ from Ashton Kutcher/Sound Ventures, Y Combinator, founders of Dropbox, Replit, SV Angel, and Homebrew Capital.
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
Benefits: Pre-tax commuter

Legacy vendors in our space built their businesses by profiting from complexity.
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.
We process hundreds of millions in payments across 1,000+ companies.
We're a team of ~40 in NYC in Flatiron, scaling fast, and expecting to be 100 people by end of year.
Even the modern players are bolting chatbots onto legacy systems.
ABOUT THE ROLE As a Senior Software Engineer focused on Developer Platform at Warp, you'll build the external-facing API layer that lets companies programmatically control payroll, benefits, HR, IT, and more.