Senior Full-Stack Product Engineer (£70K - £110K + Equity) at VC-backed AI fintech startup

Senior Full-Stack Product Engineer

Salary: £70K - £110K + Equity

Company Description: VC-backed AI fintech startup

Job Description

Join an early-stage team revolutionizing financial crime intelligence using cutting edge AI agents. You will build full stack features, automate model testing, and iterate on document fraud detection systems. This role offers the chance to define AI strategy while working on products that significantly reduce operational costs for financial service providers globally.

Location: London, UK

Why this role is remarkable

• Significant ownership and influence over the AI strategy at an early stage startup backed by top tier VCs.
• Opportunity to work with the latest advancements in LLMs, agents, and computer vision to solve real world compliance challenges.
• High growth environment with bi annual salary reviews, yearly performance equity refreshes, and flexible remote work weeks.

What you will do

• Build and maintain full stack features across front end, back end, and MLops using TypeScript, React, and Node.js.
• Develop automated systems for prompt optimization, model fine tuning, and performance evaluation based on human feedback.
• Collaborate closely with product teams to translate customer compliance needs into scalable, reliable AI driven solutions.

The ideal candidate

• 4+ years of experience in full stack product engineering with a strong intuition for user facing features.
• Hands on expertise with AI/ML technologies including prompt engineering, vision models, and fine tuning pre trained models.
• Proactive problem solver with a focus on delivering high quality code at speed within a mission driven startup environment.