Senior GenAI Engineer

Severn Trent is hiring a Senior GenAI Engineer. Level rates it ; you can apply on Level.

AI in this role

claudecopilotclaude-code

prompt-engineeringragllm-integrationai-agents

AMP8, our next five-year regulatory period, will see us launch our biggest and most complex investment programme of almost £13bn, of which £6bn will be delivered through our capital programme. This is more than double the size of the AMP7 capital programme and is an opportunity to drive real change.

As part of that transformation, we’re building new capabilities that will help us deliver smarter, faster and more effectively than ever before. One of the boldest is our Capital Delivery AI Transformation Team — a high-profile team created to help unlock major value across AMP8 and AMP9, with an ambition to deliver around £0.5bn of value across the programme.

This team exists to challenge how things have always been done. It brings together agile thinking, emerging technology and practical delivery to create solutions that remove waste, improve speed and unlock better outcomes across capital delivery.

LET’S CUT STRAIGHT TO IT

Shape the future of AI-powered capital delivery.

We're looking for a Senior GenAI Engineer to help build the next generation of AI applications that transform how major infrastructure projects are planned and delivered. You'll develop innovative AI-powered tools that turn optioneering briefs into costed, comparable solutions through intuitive chat-based and interactive experiences.

Working at the intersection of Generative AI, software engineering and user experience, you'll own the application and agent layer, connecting AI agents with cost, asset and schedule data to deliver valuable outcomes for our users.

What you'll be doing

Designing and building production-grade GenAI applications and agent-based solutions
Developing full-stack applications using Python, TypeScript and modern front-end frameworks such as React
Creating intuitive user experiences, including interactive canvases, dashboards and data-rich interfaces
Integrating LLMs, agent workflows, RAG and tool-calling capabilities
Deploying solutions in AWS or Azure using modern CI/CD practices
Delivering new features through regular development cycles and driving continuous improvement

WHAT WE’RE LOOKING FOR

Significant software engineering experience, including delivering LLM/GenAI applications to real users
Strong knowledge of agent orchestration, prompt engineering, RAG and evaluation frameworks
Full-stack development expertise across back-end, front-end and API development
Experience with cloud platforms, automated testing and secure development practices
Passion for creating exceptional user experiences and translating complex technical concepts into business value

Desirable experience

AI certifications (AWS or Azure)
Multi-agent frameworks, MCP or AI gateways
GIS or geospatial applications
Construction, engineering, utilities or cost-estimating software
AI-assisted development tools such as GitHub Copilot, Claude Code or Kiro

If you're passionate about building cutting-edge AI products and want to see your innovations making a real-world impact, we'd love to hear from you.

HOW WE’LL REWARD AND CARE FOR YOU

Working here isn’t just a job. You can build a career at Severn Trent. We’ll reward you for it, too. We have a range of benefits that recognise great work, and award-winning training to help you reach your potential. And we’ll also help you play your part in looking after the environment and the communities where we live.

With that in mind, here are just some of our favourite's perks that you’ll get being part of the Severn Trent family:

28 days holiday + bank holidays (and the ability to buy/ sell up to 5 days per year)
Annual bonus scheme (of up to £2,250 of base salary per annum based on company performance)
Leading pension scheme – we will double your contribution (up to 15% when you contribute 7.5%)
Sharesave – the chance to buy Severn Trent Plc shares at a discounted rate
Dedicated training and development with our ‘Academy’
Electric vehicle scheme and retail offers
Family friendly policies
Two volunteering days per year

LET’S GO

We can't wait to hear from you! Have an updated CV ready and spare five minutes to apply. We'll let you know the outcome after the closing date, so keep an eye on your phone and emails.

How we rate this

Senior GenAI Engineer at Severn Trent rates 64 out of 100 for how much of the daily work is AI. That makes it Works on AI (AI Level 3 of 4). The level is about AI in the job, not seniority.

Classification

Works on AI. The daily work is on AI products, without building the model.

●●●● Builds AI80 to 100
●●●○ Works on AI60 to 79
●●○○ Uses AI40 to 59
●○○○ Little AI0 to 39

Levels come from how often the tools, models and workflows of the role are named in the posting itself. Open the description and count.

Key facts

Senior GenAI Engineer is an open job at Severn Trent.
Level rates this role AI Level 3 of 4: Works on AI.
The role is based in Coventry, Engl.
The job was posted on October 16, 2026.
Seniority: senior.
Applications are handled by Severn Trent. Apply on Severn Trent

Prepare for this job

Built from this posting and from similar jobs on Level.

Skills and AI tools this role asks for

Prompt engineeringRAGLLM IntegrationAI agentsClaudeCopilotClaude Code

Questions you could be asked

How do you structure and test a prompt to get consistent output from a language model?
How would you design a retrieval step so the model answers from real data instead of guessing?
How have you integrated a large language model into a production application?
How do you decide when an AI agent can act on its own versus asking for approval first?
Walk me through how you've used Claude in your day-to-day work.

Adapt your resume

List these exact terms on your resume: Prompt engineering, RAG, LLM Integration, AI agents, and Claude. An applicant tracking system matches the wording, not the idea.
Attach one line of real, concrete experience to at least one of them. A tool named with nothing behind it rarely survives a human read.
Show where AI is part of your daily process, not a one-off project. This role expects it to be a running habit.

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