Junior AI Engineer

About the role

We are hiring a Junior AI Engineer to join our AI Engineering team. You’ll work on building real AI-powered features — combining machine learning and large language models — and learn how to take systems from initial idea through to production.

We are a team focused on building systems that work reliably in production, not just prototypes. We use modern AI tools extensively in our workflow, treating them as amplifiers that help us focus on understanding problems, designing solutions, and producing high-quality code.

• AI & ML Development: support the development of models and AI-powered features across text, document, and structured data use cases.
• LLM Applications: help build and improve LLM-powered workflows, including prompt design, structured outputs, and simple tool use.
• Data & Evaluation: work with real-world datasets, contribute to evaluation pipelines, and help measure system performance.
• Production Code: write clean, maintainable Python and contribute to code that runs in production systems.
• AI-Assisted Development: use tools like Cursor and Claude Code to accelerate development, while learning good engineering practices.
• Collaboration & Learning: work closely with experienced engineers, product managers, and data teams, learning how to ship impactful features.

• Foundations in Python: ability to write clear, structured code and a willingness to learn best practices.
• Interest in AI/ML: academic, personal, or early professional experience with machine learning or LLMs.
• Data
  
  Skills:
  
  familiarity with pandas, basic SQL, and working with datasets.
• Curiosity: strong interest in how modern AI systems work and a desire to experiment and learn quickly.
• Practical Mindset: motivated to build things that work in real-world settings, not just in theory.
• Collaboration:
  
  good communication skills and openness to feedback.

• Competitive salary of £50,000 to £60,000 depending on experience.
• 27 days of annual leave (including 3 days Christmas closing) which increases up to 3 days based on tenure, with the option to roll over, buy or sell up to 3 days.
• Hybrid working with two days a week from our dog‑friendly Hoxton office.
• On‑site gym and cycle to work scheme.
• Employee discount at over 100 retailers.
• Comprehensive private medical & dental cover with Vitality.
• Enhanced parental leave pay.
• Learning & development culture – £1,000 personal annual budget.
• We’re carbon‑neutral and are working towards ambitious carbon reduction goals.
• Lots of team socials & activities.
• Annual team retreat.

We believe that people from diverse backgrounds, with different identities and experiences make our company and product better. No matter your background, we'd love to hear from you! And if you have a disability, please let us know if there's any way we can make the interview process better for you – we're happy to accommodate!

This is a full‑time position, with standard working hours from 9:00 AM to 6:00 PM, Monday through Friday.