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
Xelix utilizes AI technology to automate and enhance the accounts payable process by analyzing invoices, statements, and vendor data. It was founded in 2018, and is headquartered in London, England, GBR, with a workforce of 51-200 employees. Its website is https://www.xelix.com.