Senior Software Engineer (LLM Engineering), London
Senior Software Engineer (LLM Engineering), London
What you'll be doing
Architect LLM-integrated systems focusing on scalability, security, and user experience.
Enable telemetry, observability, governance, and cost management; build platform components and tools.
Implement advanced LLM context management, tool-use, skill tooling, and retrieval-augmented generation (RAG) to enhance research workflows.
Build evaluation frameworks to ensure model reliability and safety, maintaining evals for diverse tasks.
Develop internal frameworks and IDE integrations for agentic coding and workflows at scale.
Support fine-tuning and reinforcement learning efforts in collaboration with AI researchers for biological and chemical data optimization.
Collaborate strategically with researchers and business teams to translate scientific needs into AI technical solutions and unlock LLM-based use cases.
Requirements
Strong software engineering skills in Python focused on production-grade, maintainable systems.
Ability to architect and maintain complex cloud systems with infrastructure as code (IaC), emphasizing security, UX, and scalability.
Deep understanding of LLM training, internal workings, and limitations.
Experience with LLM serving stacks (e.g., vLLM) for deploying open weight models internally.
Proficiency in evaluating probabilistic ML systems and managing model tool use, contexts, and iterative processes.
First-principles thinking with a pragmatic approach to problem-solving and technology selection.
Excellent communication and stakeholder management skills, capable of explaining technical risks to non-experts.
Nice to haves
Prior experience building and scaling large language model-centered systems.
Experience setting up hardware or orchestration for machine learning infrastructure.
Familiarity with Google Cloud Platform (GCP) for building and deploying systems.
Interest or experience in biology, chemistry, drug discovery, or applying AI to scientific discovery.
Knowledge of current agentic tooling and developer frameworks for fast-evolving technology.
Perks and benefits
Collaborative and interdisciplinary culture focused on innovation and impactful scientific discovery.
Hybrid working model requiring presence in the office three days a week to foster knowledge sharing and strong relationships.
Commitment to diversity, equity, and inclusion, providing a supportive environment where all employees can thrive.
Opportunity to work on cutting-edge AI systems aiming to transform drug discovery and human health.