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🥝 Staff Research Engineer (LLM Pre-Training)

JetBrains | madrid, Spain | Posted May 21, 2026

Job Description

At JetBrains, code is our passion. Ever since we started back in 2000, we have been striving to make the world’s most robust and effective developer tools. By automating routine checks and corrections, our tools speed up production, freeing developers to grow, discover, and create.

We are working on an ambitious new platform that provides AI capabilities to all JetBrains products. Our platform is based on models developed in-house for writing and coding assistance, as well as integration with our strategic partners.

We are looking for a Research Engineer who can contribute to training foundation models for coding tasks. You’ll be working on developing Large Language Models from scratch and deploying them into production environments where they will be accessible by end users across the globe.

We Value Engineers Who

  • Plan projects and make decisions independently, consulting with others if needed.
  • Identify customer needs and priorit...

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