Senior AI Engineer
Octopus Energy
Location
Remote
Type
Full-time
Posted
Oct 16, 2025
Mission
What you will drive
- Design and Develop AI Platform Services - Build reusable, scalable services that expose GenAI models, knowledge retrieval pipelines, and agent workflows to application teams.
- Knowledge Base Development - Build and maintain knowledge retrieval systems including embedding generation, chunking, and strategies for database management.
- AI Ops, evals and observability - Setting up frameworks for monitoring and evaluating AI output quality (relevance, accuracy, safety, drift, cost) and platform observability (latency, cost, usage).
- Centre of Excellence - Act as a centre of excellence for the whole business in the technical side of AI and LLMs usage, setting best practices and accelerating adoption.
Impact
The difference you'll make
You'll work on developing solutions that genuinely move us closer to Net Zero in a company passionate about building great technology to change the way customers use energy.
Profile
What makes you a great fit
- Deep Understanding of GenAI - 2+ year experience of working with LLMs and using techniques such as tool calling, agentic workflows, finetuning and reinforcement learning.
- Data Product Development - 5+ years of experience building Python-based applications and/or data products, with hands-on work in data-intensive and machine learning systems.
- GenAI Application Development - Hands-on experience of building AI applications which have been successfully deployed into production.
- AI model evaluation and observability - Experience of different ways of evaluating AI models and applications. Implementing logging, tracing, and monitoring in systems.
Benefits
What's in it for you
Octopus Energy Group is a unique culture with autonomy, amazing co-owners, and groundbreaking projects. They won best company to work for in 2022, were voted 50 best places to work on Glassdoor in 2022, and placed in the top 10 companies for senior leadership. Visit their UK perks hub for more details. Salary is flexible and discussed during recruitment calls.
About
Inside Octopus Energy
Octopus was founded with a mission to use technology to accelerate us towards a low-carbon future. They created Kraken, their own technology platform that serves over 70 million households and is a core reason why Octopus is the number one energy supplier in the UK.