Rhombus Research: Software Engineering Intern

Students Plus Startups • San Antonio, TX

6d • Hybrid

About The Position

Rhombus Research is an independent research lab in San Antonio, Texas, focused on developing systems that enhance the visibility and verifiability of autonomous machine behavior. Their work encompasses coordination and accountability infrastructure for autonomous fleets, covering areas such as swarm robotics, systems security, and data visualization. They integrate engineering and design as a unified discipline. The lab is building a public API for Reptile, their browser-based simulation engine for autonomous fleet coordination, to enable external researchers to create and run their own scenarios. The intern will contribute to the design, implementation, and testing of this interface, including endpoints, data contracts, a test suite, reference examples, and developer documentation. This role involves working directly with the founder on production code from the outset.

Requirements

• Proficiency in React and TypeScript
• Comfort with Git and collaborative development
• Ability to read an existing codebase and work within its conventions
• Clear written communication, since documentation is part of the job

Nice To Haves

• Three.js or react-three-fiber
• Experience working with LLM APIs
• Experience writing tests, any framework
• Interest in autonomous vehicles, swarm systems, or infrastructure

Responsibilities

• Design an API interface alongside Rhombus Research
• Implement API endpoints and data contracts
• Write the test suite: unit tests, integration tests, and validation against malformed input
• Build reference examples that demonstrate how an outside user would use the API
• Write developer documentation, including a getting-started guide and API reference
• Identify gaps and inconsistencies in the design

Benefits

• A portfolio project: A shipped, documented public API with your name in the commit history.
• Founder mentorship: Direct collaboration with the founder, including structured weekly one-on-ones and daily communication as needed.
• Hands-on domain experience: Practical work across simulation engineering, API design, and developer tooling.
• Compensation: Funded through the Students + Startups program.
• A $6,000 stipend for the 10-week summer term, with housing support and onboarding handled by the program.

What This Job Offers

• Job Type: Full-time
• Career Level: Intern
• Education Level: No Education Listed