Research Intern at Compresr
Compresr is hiring a Research Intern in San Francisco, CA, US +1 more. Remote.
About Compresr
Compresr provides an LLM context-compression API that accepts long context plus a query and returns a shorter context containing the answer-bearing tokens. It reduces token count, cost, and latency for LLM calls, and at light compression matches or beats full-context accuracy on public benchmarks. The service is available as a Python SDK, TypeScript SDK, or hosted HTTP API, and is designed for use in agent harnesses such as Claude Code and Cursor. The company is backed by Y Combinator and aims to become a compression layer embedded in most LLM pipelines.
Research Intern job description
Duration: 3 months, with a possibility of a full-time job afterwards
Start date: immediately
About us
We're building state-of-the-art context compression. Our mission is to become the "Cloudflare for LLMs", a compression layer embedded into most LLM pipelines by default.
We're a team of ex-EPFL MSc/PhDs. We started by publishing papers, then got into YC and started making money helping companies cut their LLM costs.
We run the business like a research lab: form hypotheses, kill the ones that don't work, double down on the ones that do.
What we offer
Competitive compensation
All the resources you need: GPUs, subscriptions, OpenAI/Anthropic credits
As much responsibility as you can handle. Our goal is to make you an irreplaceable part of the team
A fast-paced environment where you'll learn much faster than usual, surrounded by technical people who push each other
Possibility of a full-time offer based on performance
What we can't offer
Hands-on supervision. We're around for brainstorming and high-level guidance, but you own your work and will be the person who knows it best.
A well-defined project. We're early-stage and led by customer and market pull, so we work on several directions at once. You'll navigate this alongside the rest of us.
Training wheels. After a short onboarding, you'll work on hard, customer-facing, time-sensitive problems like everyone else. Not a typical internship.
We're running a tight ship on a rough sea. Not for everyone, but you'll come out the other side a much stronger sailor.
About you
1. You love research, read papers and hack on new repos for fun
2. Comfortable training ML models/transformers and doing independent applied research
3. Excellent Claude Code (or similar) user
4. Highly ambitious, ready for high-intensity YC startup culture, self-motivated
5. Strong communicator, fast response time, team player
Preferred
1. LLM research experience, shown through publications, open-source contributions, or personal projects
2. BSc or MSc in CS/DS, math, or physics.
3. Startup or research internship experience (industry or academic)
Interview process
A 40-minute call: 20 minutes for introductions and motivations, followed by 20 minutes of technical questions (mostly ML/LLM foundational questions)
A paid take-home project designed to take around 6 hours, followed by a 30-minute call to walk us through your work and answer a few questions
A 30-minute culture interview with the whole team
Offer
Apply now
Applications go straight to Compresr. We never sit between you and the employer.
Apply now ↗
