Staff/Senior AI Engineer, AI for Code

Навыки

• Коммуникация
• Дообучение моделей
• LLM
• Machine Learning
• Ответственность за результат

О компании и продукте

• At JetBrains, we build developer tools used by millions of engineers. The AI for Code team works on the next generation of coding agents and agentic workflows: systems that can understand codebases, plan and execute multi-step tasks, collaborate with developers, and ship reliable results inside real development environments.
• We are looking for a Staff/Senior AI Engineer to join the team and support these efforts. This role is for someone who can take our internal coding models, such as Mellum2, as well as open-weight models, and turn them into production-ready coding agents for our users. You’ll work on model training and fine-tuning, context engineering, tool use, evaluation, feedback loops, and product integration. This is not research in isolation – you’ll build systems that are used by tens of thousands of developers.

Задачи

• 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 where appropriate
• 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 based on capability, latency, reliability, privacy, and cost
• 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 where we need strong judgment rather than a prewritten playbook

Требования

• Strong software engineering fundamentals and a track record of shipping complex systems to production
• Hands-on experience building LLM-powered products, coding agents, or other AI systems
• Experience improving model behavior through systematic iteration, whether via prompting, context engineering, fine-tuning, preference optimization, or broader post-training methods
• Practical experience with evaluation and benchmarking for LLM systems, including defining task-grounded success metrics and catching regressions
• Experience working from noisy real-world signals rather than only from clean benchmark datasets
• Good judgment about trade-offs between model quality, latency, reliability, privacy, and cost
• Confidence working with ambiguity and taking ownership of a direction over multiple iterations
• Strong communication skills and the ability to align engineering and product decisions
• What success looks like in the first year
• You ship one or more agent capabilities that users can rely on for meaningful work, not just demos
• You establish better evaluation coverage and clearer release criteria for agent behavior
• You help the team build a repeatable loop from idea to shipped capability: prototype, evaluate, learn from usage, improve, and scale
• Why join us?
• You’ll help define what practical, trustworthy AI for software development looks like in real products
• You’ll work on challenging problems at the boundary of model capability and product reality, with the freedom to stay hands-on and the scope to influence how the next generation of JetBrains AI systems is built
• Strong base salary. We offer competitive pay that reflects your skills and experience
• Flexible work location. Enjoy the freedom to work from home or from the office
• Remote work. Spend up to 30 days per year working remotely from abroad
• Extra time off. More days to relax, recharge, and do the things you love
• Learning and development opportunities. Access to conferences, courses, and language classes
• Relocation support. We help make your move as smooth and stress-free as possible
• Language classes. Pick up the local language or sharpen your English skills
• Fuel your day. Enjoy a hot meal or receive a lunch allowance on workdays
• Mental health support. To help you feel your best, we provide easy access to professional mental health services

Условия

• Medical insurance allowance. Enjoy peace of mind for you and your family

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