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Software Engineer

Epsilon3 — AI-Powered ERP, MES, and Test Software for Complex Operations

Los Angeles Mid USD 120,000–180,000 Posted Nov 20, 2021
JavaScriptSQLReactNode.jsREST/APIsCloud

About the role

Epsilon3 is a multi-product operations management platform revolutionizing the way teams build, launch, and operate spacecraft and other advanced hardware systems.

Launched in 2021, our company is led by engineers from SpaceX, Google, and NASA, who have experience supporting over 100 space missions. Innovative teams at Blue Origin, Rocket Lab, Axiom Space, Firefly Aerospace, and many others depend on our web-based (SaaS) solutions to plan and track high-stakes procedures. We raised a $15M Series A funding round led by Lux Capital, Y Combinator (YC S21), and other world-class investors.

We're looking for Software Engineers who are interested in space exploration and passionate about building scalable, reliable software. You will be responsible for creating delightful user experiences that solve very complex problems. We are currently using technologies such as Node.js, React, Llama, Postgres, AWS GovCloud, Docker, and Kubernetes, and we expect our stack to evolve over time as we scale our solutions and approach.
 
This is an impactful role within a fast-paced startup. The ideal candidate is someone who has experience designing and implementing software systems from requirements to production and deployment.

What the index says about this role

  • First seen by JobLarper — Aug 2, 2026, 6 days ago. Older postings collect hundreds of applicants — a tailored résumé matters more the longer a role has been live.
  • No pay range in our index for this listing. Across 1,685 indexed Software Engineer roles in US that do publish one, the middle half sits between $185k and $285k, median $225k — JobLarper's read of the market, not a figure from Epsilon3.
  • What Software Engineer roles ask for — across 10,230 indexed openings: REST/APIs (46%), Backend (42%), Cloud (38%), Python (38%), Go (25%). This posting names REST/APIs, Cloud.
  • Epsilon3 is hiring actively — 4 open roles indexed.

Derived from the 27,000 roles JobLarper indexes daily from official company boards — not from the job description above.

⚡ JobLarper watched this role appear on Epsilon3's official board on Nov 20, 2021. Sign up free to get alerted minutes after roles like this go live, and tailor your real résumé to the exact description — nothing invented.

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