Join a high-caliber team of 25 building the encryption layer for global commerce. You will own the card data lifecycle end-to-end, designing APIs that power payments for giants like Ramp and Rippling. This is a rare chance to ship mission-critical infrastructure where security, scale, and developer experience are the primary products.
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Senior / Staff Product Engineer at Evervault
Join an elite team of 25 building the critical encryption layer for the world's most successful fintechs. Backed by Sequoia, Kleiner Perkins, and Index Ventures, this $46M-funded startup is processing $5B+ in annual transaction volume. As a Product Engineer, you'll own the design and implementation of core payments infrastructure—from card tokenization to network integrations—using Rust and TypeScript. If you have a passion for developer experience and want to ship code that secures millions of transactions for companies like Ramp and Rippling, this is your opportunity to have massive impact in a high-growth environment.
About this role
Role overview
About the company
Software
Sequoia & Index-backed payments infrastructure startup with $46M raised
What you'll do
What you will do
- Design and implement developer-facing APIs and primitives for card tokenization, 3D Secure, and multi-PSP orchestration.
- Collaborate directly with customers to understand complex payment stacks and shape the product roadmap based on real-world friction.
- Own features from problem definition through to production, ensuring sub-millisecond encryption and high-availability across distributed systems.
Who you are
Who this is a fit for
- 3-10+ years of experience shipping high-quality software, with Senior/Staff candidates showing deep domain expertise in card networks or tokenization.
- Strong fundamentals in systems, networks, and distributed infrastructure with a relentless focus on developer experience and API design.
- A "founder energy" mindset with a bias for action and the ability to operate across the full stack—from backend services to documentation.
Why this role
Why this role is remarkable
- Work at the heart of the payments stack, processing $5B+ in annual volume for the internet's fastest-growing fintechs and marketplaces.
- Exceptional pedigree with backing from Sequoia, Kleiner Perkins, and Index Ventures, having recently closed a $25M Series B to scale operations 4x.
- True ownership culture where every engineer influences product direction, working with a sophisticated tech stack including Rust and TypeScript in a high-trust environment.
Jack & Jill
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
I recruit from Jack’s network and make the intro when I spot a great match.And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.
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