Sr. Software Engineer, Product

One’s mission is simple - to help customers achieve financial progress. We’re doing this by creating simple solutions to help our customers save, spend, borrow, and grow their money – all in one place.

The U.S. consumer today deserves better. Millions of Americans today can’t access credit, build savings or wealth, and are left to manage their financial lives through multiple disconnected apps. Almost a quarter of U.S. adults are unbanked or underbanked and roughly 80% of fintech users rely on multiple accounts to manage their finances.

What makes us unique? We are backed by a preeminent fintech investor (Ribbit) and the world’s largest retailer (Walmart), maintain the speed and independence of a startup, and employ a strong (and growing) collection of world-class talent.

There’s never been a better moment to build a business that helps people achieve financial progress. Come build with us!

Software Engineers at One build the products & systems that serve our customers and run our company. As a member of the team, you will play a crucial role in translating product visions into functional, high-quality applications and features. You will work closely with product managers, designers, and other engineers to deliver impactful solutions that enhance our customer's financial lives.

This role is responsible for:

• Develop and implement new features, API's, and products.

• Working closely with other engineers to ship code. We enjoy collaboration and partnering on hard problems. 

• Building and maintaining documentation. As a growing and remote organization, having the necessary documentation is key to our success. 

• Solving complex problems that arise at scale. We deal with real-world money movement, and sensitive financial data at scale, and are creating novel financial mechanics with no real precedent.

• 4+ years of professional experience in product-facing backend development.

• Strong track record of delivering high-impact features and products.

• Experience building, maintaining, and optimizing API's.

• Passion for your craft and care for the people you work with. You value quality across code, communication, and culture.

• An act-like-an-owner mentality. We have a bias toward taking action.

• A desire to keep growing your skills, and an ability to learn quickly. We hope you’ll be here for a while, and there’s no better investment than in our people.

• The Triple H Factor: Hungry, Humble, Honest

We use the fp-ts library for functional programming with Node/TypeScript running on top of Kubernetes and AWS. We believe …