Prompt & AI / ML Engineer

About the job

Job Title : Prompt & AI / ML Engineer – Chatbot LLM & RAG Overview At QuantumLoopAI, we’re redefining customer engagement in healthcare with EMMA, the UK’s leading AI receptionist for GP practices. By combining cutting-edge Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), advanced prompt engineering, and our bespoke voice agent technology, we eliminate phone queues, accelerate call handling and enhance patient access—transforming the primary care experience end-to-end. Responsibilities • Architect & Deploy AI Models: Lead the end-to-end development of LLM- and RAG-based systems to ingest NHS data sources, generate accurate responses, and power both chatbot and voice agent interactions. • Prompt & Voice Agent Engineering: Craft, iterate and optimise prompts—and design voice-agent dialogue flows—to maximise response relevance, reduce latency and ensure clinical safety across text and voice channels. • Cross-Functional Collaboration: Partner with frontend (Next.js, React) and backend (NestJS, Python) teams to integrate AI and voice agent components into our Azure-hosted microservices architecture. • Performance Monitoring & Optimisation: Instrument AI and voice-agent pipelines, analyze logs and user feedback, troubleshoot edge cases, and implement continuous-learning improvements. • Innovation & R&D: Stay abreast of the latest advances in LLMs, RAG, conversational AI frameworks, and NHS-specific compliance (GDPR, DTAC) to inform our technical roadmap. • Testing & Validation: Define and execute rigorous test plans in collaboration with QA to validate model accuracy, voice-agent performance and compliance with healthcare standards. • Technical Leadership: Mentor junior engineers, advocate for best practices in MLOps, prompt engineering, voice-agent design, and model governance, and contribute to architecture reviews. What You’ll Bring • Proven Expertise: Hands-on experience with prompt engineering, LLMs (e.g., GPT, Bloom, LLaMA), RAG frameworks, and voice-agent / dialogue-system design, with demonstrable projects or open-source contributions. • Programming Skills: Advanced proficiency in Python; comfortable building APIs in NestJS; familiarity with Next.js / React for frontend integration. • Cloud & Data: Strong understanding of Azure services (App Services, Functions, Cognitive Services), containerisation (Docker), and relational databases (MySQL). • Systems Thinking: Experience designing microservices, distributed architectures, and RESTful / GraphQL APIs. • Domain Interest: A passion for healthcare technology, patient-centric design and improving NHS primary care workflows. • Communication: Excellent written and verbal skills to articulate complex AI and voice-agent concepts to technical and non-technical stakeholders. • Collaboration: A proactive, team-oriented mindset and a drive to mentor peers and contribute to a continuous-learning culture. What We Offer • Impactful Work: Shape the AI and voice agent engine behind EMMA, directly improving patient access and staff wellbeing across hundreds of GP surgeries. • Innovative Environment: Join a rapidly growing team at the cutting edge of healthcare AI, with dedicated R&D time and full support for professional development. • Flexible Hybrid Working: Our HQ at Canary Wharf is just a short walk from the DLR; enjoy a balance of in-office collaboration and remote days. • Competitive Package: Attractive salary, equity options, pension contributions and comprehensive private healthcare. • Supportive Culture: Work alongside seasoned AI researchers, software engineers and NHS specialists in a collaborative, fast-paced setting.

Requirements

• Prompt Engineering
• Python
• Azure Services
• LLMs
• RAG Frameworks

Preferred Technologies

• Prompt Engineering
• Python
• Azure Services
• LLMs
• RAG Frameworks

Benefits

• Equity options
• Pension contributions
• Private healthcare

About the company

QuantumLoopAI is the UK’s market-leading provider of AI-powered telephony, voice agent and chatbot solutions for primary care. Our flagship product, EMMA, streamlines patient communications, slashes call-handling costs by up to 80%, and aligns seamlessly with NHS systems and regulations. Join us in our mission to transform healthcare access through intelligent automation.