Staff AI Engineer: Production Coding Agents

JetBrains; Greater London; Ibrido; GBP 110.000 - 160.000; Tempo pieno

Vantaggi offerti da questo lavoro

Flexible work location

Remote work up to 30 days abroad

Medical insurance allowance

Learning and development opportunities

Relocation support

Language classes

Meal allowance

Mental health support

On-site gym or sports club stipend

Internal events

Descrizione del lavoro

JetBrains is seeking a Staff/Senior AI Engineer to join our AI for Code team in the UK. You’ll translate internal and open-weight models into production-ready coding agents used by thousands of developers inside JetBrains products.

You’ll own model training, context engineering, tool use, evaluation, and product integration, shipping end-to-end features with strong judgment and ownership, shaping the future of practical AI for software development.

Competenze

• Hands-on experience building LLM-powered products and agents.
• Experience shipping production systems.
• Experience evaluating model behavior and regression checks.
• Ability to work with noisy real-world signals.
• Strong judgment on latency, privacy, and cost.
• Excellent communication to align engineering and product decisions.

Mansioni

• 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.

Conoscenze

Production systems

LLM-powered products

Agent design

Model evaluation

Ambiguity tolerance

Cross-functional collaboration

Strong communication

Descrizione del lavoro

JetBrains is seeking a Staff/Senior AI Engineer to join our AI for Code team in the UK. You’ll translate internal and open-weight models into production-ready coding agents used by thousands of developers inside JetBrains products.

You’ll own model training, context engineering, tool use, evaluation, and product integration, shipping end-to-end features with strong judgment and ownership, shaping the future of practical AI for software development.