Machine Learning Engineer

Radley James; Greater London; On-site; GBP 120,000 - 150,000; Full time

Benefits offered by this job

Equity

Office in London

Work with founders

Job summary

Radley James is partnering with a well-funded AI start-up in London, seeking a Machine Learning Engineer to build and deploy production-grade ML systems and AI-powered workflows from day one. You will work closely with domain experts and founders to translate business processes into intelligent automation, improve model accuracy, and scale deployments in a fast-paced start-up.

This on-site role offers up to £150,000 base salary plus meaningful equity and the chance to shape a high-growth

Qualifications

• Strong software engineering skills with Python
• Commercial experience building and deploying ML models
• Experience with modern AI technologies including LLMs or GenAI
• Strong cloud experience (AWS, GCP or Azure)
• Must have core ML fundamentals, especially evaluation and metrics, with hands-on LLM experience

Responsibilities

• Build and deploy production-grade machine learning systems
• Develop AI-powered workflows that solve real-world problems
• Translate business processes into intelligent automation with domain experts
• Improve model accuracy, scalability and customer outcomes
• Collaborate with founders in a fast-paced environment

Skills

Python

Machine learning

LLMs

GenAI

Cloud (AWS, GCP, Azure)

Evaluation metrics

Production ML

Tools

AWS

GCP

Azure

Job description

Machine Learning Engineer | AI Start-up | London | £90k-£150k + Equity

Location: London (On-site)

Salary: up to £150,000 + Equity

We're partnering with a well-funded AI start-up that's transforming a traditional industry through machine learning and automation. Backed by leading investors, the company is building an AI-native platform that automates complex workflows at scale and is looking for an experienced Machine Learning Engineer to help shape the next stage of its growth.

What you'll be doing:

• Build and deploy production-grade machine learning systems
• Develop AI-powered workflows that solve complex real-world problems
• Work closely with domain experts to translate business processes into intelligent automation
• Improve model accuracy, scalability, and customer outcomes
• Help shape the engineering culture as the team continues to grow
• Collaborate directly with experienced founders in a fast-paced, high-impact environment

What we're looking for:

• Strong software engineering skills, ideally with Python
• Commercial experience building and deploying machine learning models
• Experience with modern AI technologies, including LLMs or GenAI, is highly desirable
• Strong cloud experience (AWS, GCP or Azure)
• Comfortable working in a fast-moving start-up environment
• Passion for building products that deliver measurable business impact
• Must have core ML fundamentals - evaluation and metrics in particular - alongside hands-on experience applying LLMs to real problems

What's on offer:

• Up to £150,000 base salary
• Meaningful equity package
• Office-based role in London
• Opportunity to work directly with founders
• Build AI products used in production from day one
• Join a rapidly growing, venture-backed business with significant long-term potential