Senior AI Engineer

Salary: £55,000 - 95,000 per year

Requirements:

• Strong proficiency in Python for production-ready delivery.
• Deep expertise in one of the following areas, with familiarity in others ideal: information retrieval, entity/relationship extraction and resolution, knowledge graphs, recommendation systems and ranking, tabular ML, or statistical and predictive modelling.
• Strong understanding of the GenAI landscape and agentic frameworks.
• Experience working through the full model lifecycle, including experimentation, training, testing, monitoring, and deployment.
• Strong product focus with a desire to understand the end-to-end impact of solutions for end users.
• Good knowledge of AWS AI infrastructure.

Responsibilities:

• Design and build generative AI applications tailored to complex financial and legal workflows.
• Drive the end-to-end model development lifecycle, including best practices, reproducible research, and well-managed model delivery and deployment.
• Collaborate cross-functionally to share ideas, understand business problems, and mentor teammates.
• Translate complex problems into well-defined scoped bets in a fast-paced internal startup-style environment.
• Learn and apply groundbreaking research and approaches in advanced topics, iterating improvements with a fail-fast mentality.
• Proactively share compelling ideas and work across the team and wider organisation to help drive AI adoption throughout 9fin.

Technologies:

• AI
• AWS
• Python
• Cloud
• Computer Vision
• Embedding Models
• Excel
• Machine Learning
• REST

More:

We are 9fin, the AI platform powering global debt markets. We centralise proprietary credit data, deep analysis, and high-value workflows for blue-chip institutions worldwide, including global banks, asset managers, private equity firms, law firms, and advisors. Our Data Science team is growing, and we are looking for a Senior AI Engineer to help accelerate our application of AI across teams and products. We offer competitive salary, equity, pension, private medical insurance, paid sick leave, life assurance, season ticket loan and cycle-to-work schemes, 25 holiday days per year, local public holidays, a hybrid working model, the ability to work abroad for up to 3 months a year, a paid sabbatical after 5 years of service, enhanced parental leave, professional learning and development budget, an AI experimentation budget, and regular team and company socials. We are based in London and are a full-time Data & AI team. We are an equal opportunities employer and are committed to building a fair and inclusive workplace.

last updated 35 week of 2026