📍 Location: San Francisco, CA | Function: Engineering | Seniority: Internship
Who We AreSupply chains power everything around us—but today, they still run on spreadsheets and email. We’re building modern, intelligent tools to fix that.
Our team has helped build Tesla’s manufacturing systems, Waymo’s self-driving software, and Google X’s moonshots—and now we’re taking on one of the biggest problems in the world.
We’re a small, fast-moving, and ambitious team—backed by top-tier investors and working with some of the world’s most innovative enterprises.
QualificationsCurrently pursuing a degree in Computer Science, Software Engineering, or related field
Strong programming fundamentals and eagerness to learn
Clear communicator and natural collaborator
Curious, resourceful, and comfortable working in a fast-moving environment
Bonus if you’ve had exposure to TypeScript, React, GraphQL, AWS, or Rust
As a Software Engineer Intern for Summer 2026, you won’t just shadow—you’ll build. You’ll be mentored by experienced engineers, contribute directly to our product, and leave with tangible impact (and production code!) under your belt.
What you’ll do:
Design, build, and test software features alongside experienced engineers
Learn to break down complex problems into simple, scalable solutions
Contribute to both frontend and backend systems (TypeScript, React, GraphQL, AWS, Rust—no prior experience required)
Participate in code reviews, agile sprints, and product discussions
Improve developer tools, automate workflows, and support deployments
You’ll ship production code that directly impacts customers
You’ll work across the full stack and learn modern tools in real-world contexts
You’ll be surrounded by experienced engineers who’ve built at Tesla, Waymo, and Google X
You’ll get the startup experience—small team, big ownership, fast pace, and lots of learning
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What We Do
LightSource is the only AI-native sourcing platform designed for procurement professionals and their suppliers in enterprise companies that automates the entire sourcing process from RFQ to award, enabling buyers to achieve significant efficiency gains, cost savings through AI-powered insights, and improved collaboration – while also providing suppliers with a user-friendly platform to win new business.

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