Staff/Senior AI Engineer, AI for Code

JetBrains

Amsterdam

3 weeks ago

Amsterdam

3 weeks ago

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Staff/Senior AI Engineer, AI for Code

JetBrains is seeking a Staff/Senior AI Engineer to build production-ready coding agents and agentic workflows for their AI for Code team in Amsterdam. The role involves model training, fine-tuning, evaluation, and integration of AI systems into developer tools. Candidates need strong software engineering skills and hands-on experience with LLMs and coding agents.

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On-site

Full-time

Senior

LLMs

Coding Agents

Salary

Not specified

Work Location

Amsterdam, North Holland, Netherlands, NL

Work Model

On-site

Employment Type

Full-time

Experience Level

Staff/Senior

Core Qualifications

Technical (Must-have)

LLMscoding agentsmodel fine-tuningprompt engineeringevaluation and benchmarkingpreference optimizationinstruction tuningcontext engineeringtool usepost-training techniques

Soft Skills

communicationcollaborationproblem solvingownershipjudgment

Key Responsibilities

•Build production-ready coding agents and agentic workflows for real developer tasks inside JetBrains products.
•Turn promising model capabilities into dependable product behavior through prompt design, context construction, fine-tuning, instruction-tuning, or other post-training techniques.
•Design and improve the agent loop itself, including tool use, execution strategy, safeguards, and task completion quality.
•Create evaluation suites and quality infrastructure for agent behavior, including online and offline evaluations, regression checks, failure analysis, and release criteria.
•Build feedback loops from real usage, using logs, user signals, and edge cases to improve data, evaluations, and agent behavior.
•Work with both hosted frontier APIs and self-hosted or open-weight models, making pragmatic decisions about where each model belongs.
•Collaborate closely with product managers, software engineers, ML engineers, and researchers to ship features end to end.
•Help define the technical direction for future work, especially in ambiguous areas.

AI EngineerCoding AgentsLLMsJetBrainsNetherlandsSoftware DevelopmentMachine LearningOn-site

Key Responsibilities

•Build production-ready coding agents and agentic workflows for real developer tasks inside JetBrains products.

•Turn promising model capabilities into dependable product behavior through prompt design, context construction, fine-tuning, instruction-tuning, or other post-training techniques.

•Design and improve the agent loop itself, including tool use, execution strategy, safeguards, and task completion quality.

•Create evaluation suites and quality infrastructure for agent behavior, including online and offline evaluations, regression checks, failure analysis, and release criteria.

•Build feedback loops from real usage, using logs, user signals, and edge cases to improve data, evaluations, and agent behavior.

•Work with both hosted frontier APIs and self-hosted or open-weight models, making pragmatic decisions about where each model belongs.

•Collaborate closely with product managers, software engineers, ML engineers, and researchers to ship features end to end.

•Help define the technical direction for future work, especially in ambiguous areas.