Senior AI Engineer in England

We are expanding and looking for an AI Engineer to join our team developing ground-breaking products using the latest AI and LLM agentic technologies. Our innovative solutions are transforming the industry, and we are looking for passionate individuals to join us in our mission to revolutionise healthcare with a role that makes a big difference.

Key Responsibilities

• Backend Development & Architecture – Design and implement scalable Python backend services, architect and maintain secure, high-performance, production multi-tenant systems, and develop RESTful and asynchronous APIs for internal and external use.
• LLM, Agents & AI Integration – Drive R&D innovation to meet client goals by building AI agentic workflows, advanced search, robust interaction and context management, and extending core model capabilities and protocols.
• Leadership & Collaboration – Collaborate on UI/UX integration, code reviews, architecture and roadmap decisions, and cross-functional work with data science, product, and commercial teams.
• Data Engineering – Design and maintain efficient data pipelines, ensuring smooth data flow between systems and LLM components while implementing robust validation, transformation, and enrichment processes.
• Cloud & Infrastructure – Design and implement AWS-based cloud infrastructure using infrastructure‑as‑code approaches and maintain CI/CD pipelines for reliable deployment and testing.
• Security & Compliance – Operate to the highest security standards as expected by ISO27001.

Qualifications and Skills

• 5+ years of Python backend development experience (fewer years' experience is acceptable for exceptional candidates).
• Strong experience of using LLMs/AI in a production setting and use of the latest techniques working with LLMs.
• Strong knowledge of cloud services (preferably AWS) and infrastructure‑as‑code.
• Experience with containerisation, orchestration, and CI/CD pipelines.
• Understanding of database scaling, caching strategies, and performance optimisation.
• Familiarity with LLM technologies and latest utilisation methodologies, including agentic workflows.
• Strong understanding of software design principles and coding standards.

What We Offer

• Competitive salary and benefits.
• Opportunities for professional growth.
• Flexible work hours and remote work.
• Collaborative, inclusive work environment.
• Chance to work on cutting‑edge AI technologies with real‑world impact.

Selection Process

• Screening interview with HR.
• Introductory interview with hiring manager/technical exercise.
• Capability interview with CEO/team members.

Circuit Medical is a well‑established, research‑driven global consultancy that specialises in delivering comprehensive services to maximise the value of medical affairs and other functions to the biopharmaceutical industry. We proudly support leading global pharmaceutical companies such as AstraZeneca, Roche, Takeda, and many others. As we expand our digital offerings, we are building a suite of products aimed at enhancing quality, efficiency and performance for our clients and ultimately help patient care. Circuit Medical excels by being different, curious, innovative, working with ambiguity, being collaborative, communicative, all for the greater good and always delivering to a high quality.

Circuit Medical welcomes everyone and creates inclusive teams where we celebrate different backgrounds, experiences, and perspectives. We encourage colleagues to bring their whole selves to work. We provide equal employment opportunities to applicants and employees without regard to race, color, religion, age, sex, sexual orientation, gender identity, national origin, or disability. We promote a culture of trust, support, and acceptance.