Founding engineer

Email us at join@usecapsule.com with your portfolio / resume links along with a bit about yourself and why you're excited about Capsule.

Take the next step in your career now, scroll down to read the full role description and make your application.

Active

Seniority

About the Job

As a founding engineer on the core team, you will be wearing many hats across the stack and have a key voice in product decisions.

This is an opportunity to get significant equity, significant responsibility, and ultimately launch Capsule’s main product that will directly move Capsule’s mission and business forward.

This role is in-person, and based in SF / Bay Area or NYC.

In this role, you will :
• Have end-to-end ownership over Capsule’s developer SDKs across web and mobile.
• Implement UI elements from design mocks, with an eye for performance, user experience, and accessibility.
• Collaborate with developers building on Capsule to continually iterate on and improve Capsule’s developer experience.

You Have :
• Experience with mobile and web developer tools and infrastructure (eg. bundling, dependency management bridging).
• Frontend experience (React Native, React, Typescript, Native Bridging on mobile).
• Experience and interest to take on this technical area 0 >

1 with collaboration with the rest of the core team.
• Desire to work at a very early stage startup (and understanding the upsides as well as the responsibilities and risks that come with a role of this nature).
• Built 0 1 products in the past, preferably in startup environments.
• A deep product sense and strong intuition for end-user experience and business value.

Nice to have
• Prior crypto / web3 experience.
• Experience working with Typescript, Go, and AWS.
• Prior crypto wallet development experience, particularly with MPC systems.

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Last updated : 2026-0+-05