Harnham
Senior AI Engineer - Agents in Fintech
Requirements
The role calls for senior-level experience designing and delivering production Generative AI and LLM applications, including RAG and conversational AI solutions. It also requires the ability to own technical delivery, integrate with enterprise systems, make architecture decisions, and work with security, data protection, engineering, and business stakeholders; AWS experience is preferred.
Job Description
Looking to build production GenAI products with measurable business impact?
Want to solve the challenges of deploying LLM applications across a large, regulated organisation?
Interested in joining a growing AI function with end-to-end ownership across multiple enterprise use cases?
A major UK financial services business is expanding its AI delivery capability and hiring a Senior AI Engineer. The wider MLOps function includes 12–15 engineers, with this role sitting within a small AI delivery team focused on building and productionising AI solutions across the business. Current projects include a RAG-based contact centre assistant, AI-supported complaints handling and extracting fraud signals from network graphs. You'll join a fast-paced environment with significant autonomy across several active AI initiatives.
The Senior AI Engineer will design, build and productionise LLM-powered applications while working across engineering, data science, security and business teams. You'll have end-to-end technical ownership with scope to influence architecture, technical recommendations and build-vs-buy decisions.
Key Responsibilities
• Design, build and productionise LLM and Generative AI applications
• Develop solutions using RAG, conversational AI and AI-driven workflows
• Own technical delivery from architecture through to production deployment
• Integrate AI applications with enterprise systems and data sources
• Make architectural recommendations and evaluate build-vs-buy decisions
• Partner with InfoSec and Data Protection teams on secure AI delivery
• Communicate technical decisions and trade-offs across engineering and business teams
Key Details
Salary range: Up to £95,000 base + 15% annual bonus
Working model: Hybrid, 2–3 days per week in the London office
Tech stack: Production LLMs / Generative AI, RAG, AWS ideally. Further stack details not confirmed.
Visa sponsorship: Available
Interested? Please apply below.
Skills
About Harnham
Harnham provides specialist Data and AI recruitment and staffing services, along with bespoke training solutions, across multiple industry verticals, operating in the UK, the USA and EU - contact us today to discuss your requirements: info@harnham.com Our recruitment and talent teams cover all aspects of the data and AI pipeline, from collection to consumption, across multiple data roles and functions. Whether you need full-time staff, contract talent, specialized training, Data-qualified graduates, or C-suite executives, Harnham Group is equipped to fulfill all your data talent requirements. Our five core services: * ATD - Rockborne – our graduate development arm – deploys expertly trained data consultants, who have gone through an intensive 12-week data training programme. After two years in the scheme, your consultant could become a * Contract / C2C / Freelance: Whether you're addressing a talent shortage, augmenting a project team, or encountering resource gaps, our specialist consultants offer bespoke interim talent solutions to address your unique challenges and drive success. * Full-Time / Direct Hiring: From early career professionals to senior management, our comprehensive services enable you to unearth outstanding data talent across various specializations, ensuring your organization thrives in the data-driven era. * Executive Search: With our dedicated executive search team and an extensive network encompassing the director to C-suite level, we assist both global corporations and ambitious startups in securing top-tier leadership talent to accomplish their goals. * GenAI, Prompt, LLM Training: Elevate your team's data expertise with our all-encompassing training programs covering essential tools and technologies such as Python, SQL, Machine Learning, LLM’s and AI. Highly bespoke, customised to your team learning requirements and budgets.