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Research Engineer

Job in San Francisco, San Francisco County, California, 94199, USA
Listing for: Greptile
Full Time position
Listed on 2026-01-03
Job specializations:
  • Software Development
    Software Engineer, AI Engineer
Salary/Wage Range or Industry Benchmark: 200000 - 250000 USD Yearly USD 200000.00 250000.00 YEAR
Job Description & How to Apply Below

We want to build agents that autonomously validate code changes. Today that looks like AI that reviews pull requests in Git Hub, catching bugs and enforcing standards. We’re reviewing close to 1B lines of code a month now for over 1,000 companies.

Problems we’re excited about:
  • Coding standards can be idiosyncratic and are often poorly documented; can we build agents that learn them through osmosis like a new hire might?
  • Can we identify for each customer what types of PR feedback they do and don’t care about, perhaps using some sample efficient RL, in order to increase signal-to-noise ratio?
  • Some bugs are best caught by running the code, potentially against discerning AI-generated E2E tests. Can we autonomously deploy feature branches and use agents to parallel try to break the application to detect bugs?
Commercials:
  • Went from 0→XM in revenue in 11 months, growing 25% a month
  • $30M raised from Benchmark, YC, Paul Graham and others.
Team:
  • Engineering: senior and staff engineers that are ex Google, Linked In, Rivian, best characterized by extreme intellectual curiosity and very high agency.
  • Head of growth was 3rd growth hire at Figma, led growth for Fig Jam
  • Enterprise sales lead launched Stripe in the UAE, before that was the first seller at Hugging Face and first few at Postman and New Relic.
  • Designer did this →
Qualifications
  • BS in Computer Science of equivalent
  • Some research experience, ideally with ML/LMs/Agents
  • Strong programming skills and good product intuition
Responsibilities
  • Experiment with and apply recent advancements in agents/LMs etc. to improve the performance and capabilities of our products
  • Example: you might study multi-agent architectures, prototype and evaluate a multi-agent code review workflow, and then work with a
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