Senior Backend Engineer
About this role
We are looking for a Senior Backend Engineer with 5+ years of experience to own and build the core backend infrastructure powering a modern B2B payments platform. You'll be someone with high agency who thrives in ambiguity – turning messy, real-world problems into reliable production systems. This role sits at the heart of the product, working on core data infrastructure, payments systems, and internal tooling that directly impacts business outcomes. If you've built backend systems in payments and want to operate with true end-to-end ownership at a fast-moving startup, this is the role for you.
What you will be doing
Building and owning production backend systems for Slope's core data and payments infrastructure using TypeScript/Node.js
Designing APIs, services, data models, and contracts that other teams depend on – with a focus on correctness and reliability
Creating internal tools that help teams review data, understand decisions, and move faster without sacrificing quality
Owning ambiguous projects end-to-end – defining the problem, proposing a path, shipping production slices, and iterating
Improving the reliability, latency, and correctness of systems that directly affect payment decisions and customer experience
Company at a glance
Slope is an AI-powered B2B payments platform that offers business credit through partnerships with major global companies. It has raised $252 million in equity and debt from investors including Sam Altman, J.P. Morgan Chase, and Y Combinator.
What happens next
Skip the application pile. I get you in front of the people who decide.
Confirm the fit
A few questions to make sure this role is the right shape for you. Two minutes.
I pitch you to the company
I write the intro, send it to the founder, and handle the back-and-forth.
A meeting lands on your calendar
When the company wants to meet, I get the call on your calendar. You just show up.
Culture & values
The company believes that it is not where you start but how fast you are growing and iterating.
The team is tight-knit and intense.
Team members learn a ton and have ownership.
The company aims to help transition the massive B2B economy online and help small business owners thrive.
Know someone who'd be great for this?
