Machine Learning Engineer - Hybrid Remote

Applied Machine Learning Engineer - London (Hybrid) - 60,000
Im working with a fast-growing, founder-led start-up thats on a mission to make digital ads actually enjoyable tackling one of the biggest challenges in adtech: building a higher-quality, more intelligent ad-funded internet.

Theyre now hiring their first ever Applied Machine Learning Engineer someone curious, hands-on, and ready to own all things ML from day one.

What youll be doing:
Building and deploying applied ML systems that make the product smarter and more defensible
Developing contextual categorisation of web content
Prototyping algorithms to optimise ad performance and bidding logic
Applying modern LLM techniques from prompt engineering to retrieval-augmented generation (RAG)
Working cross-functionally with engineers, product and commercial teams to bring ideas to life

What theyre looking for:
~13 years experience in applied ML/AI (or equivalent projects)
~ Strong Python skills with PyTorch, Hugging Face or scikit-learn
~ Experience experimenting with LLMs (fine-tuning, embeddings, prompt chaining etc.)
~ A passion for turning messy real-world data into something powerful and production-ready
~ Excitement about being the first ML hire in a scaling start-up environment


Why youll love it:
~ Real ownership from day one build, shape and scale the ML function
~ Hybrid setup (London-based, flexible culture)
~33 days holiday + Christmas shutdown
~ Private medical, pension, socials, offsites & more


If youre ready to apply your ML skills in a high-impact, creative environment where ideas move from concept to production fast Id love to chat.

Applied Machine Learning Engineer - London (Hybrid) - 60,000