Junior AI Engineer
Xelix is a fast-paced scale-up that automates and strengthens financial controls for large companies. The Junior AI Engineer will join the AI Engineering team, focusing on building AI-powered features and systems that operate reliably in production environments.
Responsibilities
- 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
Skills
- 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
Benefits
- 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
- Lots of team socials & activities
- Annual team retreat
Company Overview