Senior Full-Stack Product Engineer Equity at VC-backed AI fintech startup
Job in
Greater London, London, Greater London, W1B, England, UK
Listed on 2026-02-17
Listing for:
Jack and Jill AI
Full Time
position Listed on 2026-02-17
Job specializations:
-
Software Development
AI Engineer, Machine Learning/ ML Engineer, Full Stack Developer
Job Description & How to Apply Below
Location: Greater London
Senior Full-Stack Product Engineer
Salary: £70K - £110K + Equity
Company
Description:
VC-backed AI fintech startup
Location: London, UK
Job DescriptionJoin 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.
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.
- Build and maintain full-stack features across front-end, back-end, and MLops using Type Script, 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.
- 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.
Position Requirements
10+ Years
work experience
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