AI/ ML Engineer

Core Responsibilities

• 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).
• Context Engineering - Design systems for prompt assembly: Create prompt templates, system prompts and guidelines for platform users.

You will 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.

Required skills and experience:

• Deep Understanding of GenAI - experience working with LLMs.
• Data Product Development - experience building Python-based applications and/or data products, with hands-on work in data-intensive and machine learning systems.
• AI model evaluation and observability - Experience of different ways of evaluating AI models and applications. Implementing logging, tracing, and monitoring in systems.
• Context Engineering and Knowledge Grounding - Experience of optimising and grounding GenAI models and applications through prompt design, RAG and knowledge base integration.
• Software Development Practices - Strong grounding in Git, testing, CI/CD frameworks.
• Ability to thrive in a fast moving environment - Dealing with ambiguity, setting clear priorities, and translating ideas into actionable plans.

Compensation and perks:

• Salary information available upon request during recruitment calls with flexibility based on experience
• Unique company culture with autonomy and amazing co-owners
• Won best company to work for in 2022
• Voted 50 best places to work in 2022 on Glassdoor
• Top 10 companies for senior leadership
• Visit UK perks hub for full benefits details
• Equal opportunity employer with inclusive work environment

Octopus was founded with a mission to use technology to accelerate us towards a low-carbon future. They created Kraken - their own technology platform from scratch which now serves over 70 million households and is a core reason why Octopus is the number one energy supplier in the UK.