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Research Engineer

Primis

Lead AI Research Engineer – Agentic Systems

New York (hybrid)

The following information provides an overview of the skills, qualities, and qualifications needed for this role.

Our client, a global information and technology company, is hiring a Lead AI Research Engineer for its applied AI research group. The team builds AI products used by professionals in law, tax, compliance and government around the world. These are high-stakes domains where accuracy and trust matter.

The role

You'll lead the technical design and delivery of production agentic AI systems, taking each one from an unclear business problem to a system customers can rely on. You'll set engineering standards, mentor other engineers and work closely with research scientists to turn new ideas into products.

What you'll do

  • Design, build and optimise multi-agent systems for production, including complex tool calling, context management and workflow orchestration
  • Build evaluation frameworks that go beyond offline metrics to measure how agents actually perform in live systems
  • Own agent observability and telemetry
  • Lead engagement across Product, UX, Engineering and Business stakeholders
  • Set best practices and standards that scale, and raise the technical bar through mentorship
  • Build scalable data pipelines and ML systems across the full software lifecycle

What you'll bring

  • 8+ years of hands-on engineering experience building IR, NLP, LLM or agentic systems for commercial products in production (not academic or experimental work)
  • Deep expertise in agentic AI: tool use, multi-agent orchestration, context management and agent evaluation
  • Expert-level production Python: clean, tested, maintainable code. Pydantic/PydanticAI experience is a strong plus
  • Familiarity with PyTorch and Hugging Face, and a solid grasp of ML fundamentals
  • Experience with LLM observability/eval platforms such as Langfuse or xhyhwjd Braintrust
  • Cloud-native and MLOps experience (AWS or Azure)
  • A track record of leading technical workstreams and influencing cross-functional stakeholders
  • Daily use of AI-assisted coding tools such as Cursor or Claude Code
  • Nice to have: NER, information extraction or retrieval experience; Java/TypeScript

What's on offer

  • Competitive salary and benefits
  • Hybrid working, plus up to 8 weeks a year working from anywhere
  • Flexible vacation, wellbeing support and tuition reimbursement
  • Work on AI products used by millions of professionals worldwide

Vacancy posted 2 days ago
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