Member of Technical Staff, API
- Pay
- $140,000 – $220,000 per year
- Location
- Palo Alto, CA (Remote) · On-site
- Job type
- Full-time
- Level
- Mid-level
- Listed
- 23 days ago
Skills & highlights for this role
- TypeScript
- GraphQL
- NestJS
- PostgreSQL
- event-driven architecture
Also useful
- Temporal.io
- agentic AI tooling
Stated benefits & perks
- Equity
The Team
We're looking for Back End Engineers to join our API team. We treat our GraphQL API as a product - because it is one. Multiple customers build directly on top of it, and the quality of their experience is determined by how well we design, document, and maintain it.
Mortgage is a surprisingly rich domain to model. It's path-dependent: the choices you make early in a loan constrain what's possible later. It's nonlinear: different borrower situations branch into wildly different flows. Most APIs in this space paper over that complexity. We're building one that embraces it - encoding the real shape of mortgage into a surface that's impossible to misuse and delightful to build against.
Here Is What You'll Do
- Define what a mortgage is in code. Seriously. You'll work on semantic models that don't just represent mortgages as they exist today - they expand what a mortgage can be. This is product design at the API layer.
- Build toward an event-driven API. We're moving to a world where our API doesn't just respond to requests - it tells you what happened, why, and what you can do next. You'll help design and ship that future.
- Make the complex feel simple. Our API should make the mortgage process impossible to get wrong. That means thoughtful abstractions, clear documentation, and an obsessive focus on developer experience.
- Design for nonlinearity. Mortgage flows aren't linear wizards. Our future API encodes choice, branching, and path-dependence natively. You'll work on guided experiences that model real-world complexity without exposing it as chaos.
- Treat this as a product surface. You'll think about breaking changes, versioning, onboarding, and the full lifecycle of an API that real companies depend on.
Tech Stack
- TypeScript
- GraphQL (this is the product)
- NestJS
- SQL (PostgreSQL)
- Temporal.io (workflow orchestration)
- Event-driven architecture
- AI-driven development tooling and agentic infrastructure
Someone who
- Is deeply curious
- Wants to own features from design to development to deployment to maintenance
- Is willing to put the work in to solve the hardest of problems
Pay and benefits
Location: Palo Alto, CA Base Salary Range: $140,000/yr to $220,000/yr + Equity + Benefits
About Pylon
America’s $13T mortgage market is one of the most important financial systems in the world. It underwrites the middle class and is the mechanism through which millions of families build wealth. But while every other financial instrument has been simplified to an API call, mortgages are still assembled by hand.
We started from zero and created the first vertically integrated mortgage platform that turns origination into a single API.
Publicly traded companies and the country’s largest originators are already building on Pylon. Revenue is compounding monthly. We’re backed by Peter Thiel, Conversion Capital, QED, Citi, Fifth Wall, and the founders of Ramp, Blend, and Mercury.
Working at Pylon isn’t for those seeking comfort. The people who thrive here have high agency, strong opinions, and a track record of delivering outcomes without direction. Many of us are former founders. We move quickly, challenge each other directly, and take full ownership of results. It’s hard work, but it will be worth it.
Join us in building America’s mortgage rails.
From Pylon's careers page, first listed on Rolev.ai on October 17, 2026. Rolev.ai is not the employer.
How Rolev.ai helps with this application
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Common questions
What is the salary for the Member of Technical Staff, API role at Pylon?
The Member of Technical Staff, API posting at Pylon states compensation of $140,000 – $220,000 per year. It is listed as a full-time position. Final pay may depend on location, experience, and interview evaluation on Pylon's official career site.
Where is the Member of Technical Staff, API job at Pylon located?
Yes, this Member of Technical Staff, API opening at Pylon is listed as Palo Alto, CA (Remote) (On-site). Always check Pylon's application page for specific state eligibility or relocation policies.
What qualifications are required for Member of Technical Staff, API at Pylon?
For the Member of Technical Staff, API role, Pylon highlights experience with TypeScript, GraphQL, NestJS, PostgreSQL, event-driven architecture. Rolev.ai can score your existing resume against these requirements and show any skill gaps before you apply.
How do I apply for the Member of Technical Staff, API position at Pylon?
This listing links directly to Pylon's Ashby application page. You can apply directly on Pylon's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the Ashby application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.