Principal Software Engineer

Motion (YC W20)

full-time

Posted on: 9/4/2025

Location: California • 🇺🇸 United States

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💰 $300,000 - $375,000 per year

Lead

JavaScriptNode.jsPostgresReactTypeScript

About the role

Work on Motion's highest impact projects and have ownership over major parts of the product code
Implement large software projects to help Motion scale
Make key technical decisions
Work on frontend, backend, or full-stack projects depending on background
Collaborate with top engineers and receive coaching and feedback
Deliver high-impact initiatives on product roadmap

Experienced software engineer capable of making key technical decisions and implementing large software projects
May be frontend, backend, or full-stack
Familiarity with the Javascript ecosystem
Tech stack: Typescript, Node.js, React, React Query, NestJS, Postgres, Temporal
Ability to take ownership of projects and lead them to completion
Fast learner comfortable with complex product and code base
Comfortable tackling any part of the stack and working around tech debt
Ability to collaborate effectively with other talented engineers
Median engineer at Motion has 9 years experience (implies experienced candidates)
Applicants will be asked if they currently or in the future require visa sponsorship