San Francisco
2 months ago

Job Overview

Job Type
Intern
Pay
Not disclosed

Job description

Location:
San Francisco, United States
Work arrangement:
On-site

Role Summary

Duration: 3 months, with a possibility of a full-time job afterwards

Start date: immediately

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.

Requirements

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)

Benefits

  • 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

About the Company

  • 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.

Additional Information

  1. A 40-minute call: 20 minutes for introductions and motivations, followed by 20 minutes of technical questions (mostly ML/LLM foundational questions)
  2. 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
  3. A 30-minute culture interview with the whole team
  4. Offer
Role:
Research Intern
Job Type:
Intern

Company profile

compresr

compresr.ai

Compresr is an LLM context-compression API: users send long context plus a query and get back a shorter context that keeps the answer-bearing tokens and drops the rest, cutting token cost and latency. It is available through a Python SDK, TypeScript SDK or hosted HTTP API. Compresr Inc. is run by a team of ex-EPFL MSc/PhDs who went through YC, and aims to become the Cloudflare for LLMs.

Founded
2026

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