• Client Delivery & Technical LeadershipWork closely with consultants to translate methodologies into reproducible and auditable technical solutions
• Support the delivery of established methodologies across new client engagements
• Occasionally work directly with clients to understand requirements and explain technical approaches
• Take responsibility for the quality and accuracy of outputs before they reach clients
• Mentor junior engineers and contribute to raising engineering standards across the team

• What We’re Looking ForAround 4–5 years’ professional experience in software or data engineering
• Strong Python development experience
• Production experience working with Large Language Models, including prompt design and evaluation
• Experience making probabilistic AI outputs reliable enough for production environments
• Strong SQL and relational data modelling experience
• Experience building and maintaining data pipelines that other teams rely on
• Cloud experience, ideally Microsoft Azure or GCP
• Proven ability to own work end-to-end, from design through deployment and monitoring
• Strong communication skills with the ability to work effectively with technical and non-technical stakeholders
• Comfortable working in an environment where requirements and scope aren't always fully defined
• Desirable ExperienceFinancial services, investment management, ESG, or sustainability experience
• Experience with document processing and information extraction at scale
• Experience introducing AI evaluation, testing, or quality assurance practices into a production product
• Previous experience mentoring or supporting junior engineers

• Why Apply?Up to £70,000 salary + share options + discretionary bonus
• Hybrid working (1–2 days per week in London)
• Hands-on role across AI, data engineering and platform development
• Work directly on live client engagements and see the impact of what you build
• Genuine influence over technical direction within a growing engineering team
• Work with production AI rather than experimental or purely theoretical use cases
• Opportunity to mentor junior engineers and help shape engineering standards
• Small, collaborative team with a direct connection between engineering and client outcomes
• Clear opportunity to take ownership of key technical areas as the business grows

If you’re an experienced Software or Data Engineer with strong Python and production LLM experience, and you’r