Job Details

At Pylon, we're a small team building an ambitious product in the mortgage space.
We are seeking engineers who can shape both the product and its technical foundation. If you thrive on solving complex, open-ended problems with autonomy and influence, Pylon Engineering might be a great fit.

About you

• Deeply technical: Excited to optimize performance, model domain logic, or design fault-tolerant systems.

• Big picture thinking: Understand systems, tradeoffs, and long-term architecture.

• Innovative: Improve tools, abstractions, and introduce structure when needed.

• Fast learner: Capable of mastering complex mortgage and platform systems.

• Thrives in ambiguity: Can make decisions without complete information and guide others.

• Outcome-oriented: Focused on real-world impact and user/business understanding.

• Passionate about strong typing: Experience with Haskell, Rust, Idris, or pushing TypeScript limits.

About the Team

We're not building a CRUD app or an LLM wrapper. Our work involves deep technology, first principles, and building from scratch in a complex domain. Expect challenging tasks, potential failures, and a collaborative environment.

We are:

• A small, autonomous team responsible for all code.

• Looking for generalists who are flexible and eager to learn across disciplines.

• Operating in a regulated space with a focus on safety and compliance.

About the Job

Title: Principal Software Engineer

Stock options: Equity ownership in the company

Benefits: Health, 401K, dental, etc.

Technology stack: TypeScript, Web Components, GraphQL, PostgreSQL, NestJS, Nx, Sagittarius, AWS CDK (experience not required)

Philosophy: Prefer monoliths over microservices unless necessary.

As a Principal Engineer, you will:

• Lead system architecture and technical direction.

• Resolve foundational technical challenges.

• Mentor team members and elevate engineering standards.

• Translate high-level goals into shippable systems.

• Advance codebase and tooling for safer, faster development.

• Shape engineering culture through leadership and example.

About Pylon

The mortgage industry is ripe for transformation. Pylon is creating API-first infrastructure to automate credit, compliance, capital, and operations, enabling originators to scale through software. Our team has backgrounds from Stripe, Better, Affirm, and is backed by top investors.