> Markdown version of [/jobs/ext/2286394-senior-ai-engineer](https://www.wearedevelopers.com/jobs/ext/2286394-senior-ai-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Senior AI Engineer

- **Company:** Clerkenwell
- **Location:** London, UK
- **Experience:** Expert
- **Salary:** £104,000.0 - £182,000.0
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Amazon S3, Cluster Analysis, Identity and Access Management, Microsoft Office, Named Entity Recognition, Software Engineering, Large Language Models, Prompt Engineering, Topic Modeling, Production Code, Machine Learning Operations, Functional Programming, Software Coding, Document Classification
- **Published:** August 29, 2026
- **Apply:** https://www.apply4u.co.uk/jobs/senior-ai-engineer/45422118

## About the Role

particularly Bedrock or SageMaker. Make and justify architectural and build-versus-buy decisions. Evaluate commercial APIs, hosted platforms and self-hosted or open-weight models. Balance capability, cost, latency, scalability and data-control requirements. Work closely with established product and engineering teams. Experience required Strong hands-on experience building production AI/ML systems. Excellent software engineering and production coding skills. Proven experience deploying AI/ML workloads on AWS. Knowledge of Amazon Bedrock or SageMaker, alongside services such as S3, IAM and Lambda. Practical experience designing and implementing RAG systems. Experience with prompt engineering, structured outputs, function calling and tool use. Strong understanding of AI evaluation, testing and production monitoring. Experience handling security, privacy, tenant isolation and data-residency requirements. Ability to explain technical trade-offs, build consensus and lead through influence.
Additional experience valued Topic modelling, document classification, clustering and entity extraction. Document-ingestion and extraction pipelines covering PDFs, Office documents, images and tables. Multimodal processing and embedding generation. Agentic workflows in which LLMs plan, call tools and complete multistep tasks. Optimising LLM workloads for cost, latency and throughput. Experience within financial services, fintech or another regulated environment. This opportunity would suit a senior AI Engineer or Technical Lead who remains genuinely hands-on and can combine production delivery with pragmatic technical leadership. Location The role will require some time in Cardiff during the onboarding period, followed by occasional travel to Cardiff throughout the contract. TPBN1_UKTJ

## Description

Senior AI Engineer - Contract Inside IR35 - £400-£700 per day The role We're looking for a senior, hands-on AI Engineer who can both build and lead. This contract role sits at the centre of an ambitious AI strategy. You'll write production code while guiding existing engineering teams towards the right solutions-making sound architectural decisions, assessing build-versus-buy options and avoiding technical dead ends. This is technical leadership rather than people management. You'll be equally comfortable shaping an approach with the team and implementing it in the codebase. You'll take product goals, assess the viable options, recommend a defensible approach and help deliver it within a regulated production environment. Core responsibilities Lead and deliver AI-powered features from prototype through to production. Write significant production code while guiding other engineers. Set the technical direction for AI and machine learning. Design and deploy AI/ML workloads using AWS


## Related Videos

- [Engineering Mindset in the Age of AI - Gunnar Grosch, AWS](https://www.wearedevelopers.com/videos/1735-engineering-mindset-in-the-age-of-ai-gunnar-grosch-aws)
- [WeAreDevelopers LIVE - CSS is DOOMed](https://www.wearedevelopers.com/videos/1838-wearedevelopers-live-css-is-doomed)
- [ChatGPT vs Google: SEO in the Age of AI Search - Eric Enge](https://www.wearedevelopers.com/videos/1287-chatgpt-vs-google-seo-in-the-age-of-ai-search-eric-enge)
- [Unleashing the Power of Developers: Why Cybersecurity is the Missing Piece?!?](https://www.wearedevelopers.com/videos/712-unleashing-the-power-of-developers-why-cybersecurity-is-the-missing-piece)
- [AI Killed DevOps... What Now? - Lee Faus](https://www.wearedevelopers.com/videos/1759-ai-killed-devops-what-now-lee-faus)
- [Hate organising your photos? Try it with 5 Terabytes](https://www.wearedevelopers.com/videos/79-hate-organising-your-photos-try-it-with-5-terabytes)

## Related Articles

- [How to Become an AI Engineer](https://www.wearedevelopers.com/magazine/331-how-to-become-an-ai-engineer)
- [Navigating the AI Shift](https://www.wearedevelopers.com/magazine/629-navigating-the-ai-shift)
- [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk)
- [From Prototype to Production: Build AI Agents with This Free 4-Course Learning Path](https://www.wearedevelopers.com/magazine/655-from-prototype-to-production-build-ai-agents-with-this-free-4-course-learning-path)
- [MLOps And AI Driven Development](https://www.wearedevelopers.com/magazine/82-mlops-and-ai-driven-development)
- [Dev Digest 132 - Binging WADFlix?](https://www.wearedevelopers.com/magazine/473-dev-digest-132-binging-wadflix)