Senior AI Engineer in London

We’re on a mission to back the UK’s small businesses like no other. The role is suited for a senior product or full‑stack engineer who is excited to jump fully into the AI/ML product space and build applications on the cutting edge of these new technologies. Your mission is to bridge the gap between our AI systems and user‑facing applications. You will spearhead the development of flagship GenAI products, across multiple business areas, and will own the full product lifecycle, from design and development to production support and maintenance.

Your Responsibilities

• Design, build, and maintain modern, full‑stack web applications, including front‑end development, serverless or containerised back‑ends, APIs, and database storage.
• Employ technologies specifically suited to GenAI applications (MCP, Knowledge Bases, Agent‑to‑Agent communication, Agent Catalogues, LLM output monitoring and evaluation systems, etc.)
• Take ownership of and accelerate the development of flagship GenAI products, like our internal “Customer Profile,” to reduce time‑to‑value and iterate rapidly based on user feedback.
• Collaborate directly with AI/ML engineers, data scientists, product engineers, and product managers in a rapid experimentation and prototyping environment.
• Embrace and drive a culture of full‑lifecycle ownership, taking responsibility for your applications’ design, development, ongoing production support, maintenance, and on‑call duties.
• Help evolve our cross‑functional operating model, establishing robust, repeatable processes and best practices for building end‑to‑end AI applications.
• Set standards and best practices for the implementation and development of production GenAI applications and share knowledge with the rest of our engineering organisation.
• Mentor junior team members and contribute to building an outcome‑driven innovation culture within Funding Circle.

Preferred Skills

• Application Development: Proven expertise in building, testing, and deploying modern full‑stack web applications. Strong skills in front‑end frameworks (e.g., React), application back‑ends (e.g., Python, serverless/containerised applications, APIs), and database storage.
• Product Ownership: A product‑focused mindset with experience in taking applications from concept to production. Comfortable with full‑lifecycle ownership, including maintenance and on‑call responsibilities.
• Cloud and Infrastructure: Experience with cloud platforms and familiarity with infrastructure concepts (e.g., CI/CD, containerisation, serverless) needed to build scalable and reliable applications.
• Collaboration and Communication: Excellent ability to work effectively in a cross‑functional team, managing stakeholders and clearly translating complex technical ideas and user feedback into product features.
• Problem‑solving and Initiative: Strong analytical and troubleshooting skills. Excited by the ambiguity of a new, experimental team and able to take ownership to drive initiatives forward.
• AI/ML Interest: A strong interest in and hands‑on experience with AI/ML technologies, such as LLM‑based applications, RAG, or agent frameworks. The role will require learning and developing this area of knowledge.
• Event‑Driven Systems (Bonus): Knowledge of event‑driven systems (e.g., Kafka) is a plus. Willingness to learn is a requirement.

Benefits & Perks

• Flexibility: Benefit allowance you can tailor to your own life and family.
• Health: Private medical and dental, health assessments, and access to a digital GP.
• Wealth: Life assurance, share schemes, and financial coaching.
• Development: Dedicated annual learning allowance to help you level up.
• Lifestyle: Electric car and cycle‑to‑work schemes, plus season ticket loans.
• Parental leave: Award‑winning policies supporting fertility treatments and family additions.