Explore Group
Senior Fullstack Engineer
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🚀 Senior Full-Stack Engineer (React / Node.js) - AI/LLM - Contract
We're looking for a Senior Full-Stack Engineer to support a client within the FinTech industry.
📍 Fully remote
📄 6-month contract, strong likelihood of extension
💰 Up to £550/day
What you'll be doing:
- Building and extending product features across a React frontend and Node.js backend
- Working with LLMs to extract and validate structured data from unstructured financial documents
- Designing pipelines that handle real-world document/data variability at scale
- Collaborating closely with a small, senior product/engineering team to ship fast
- Contributing to architecture and technical decisions as the platform scales
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What we're looking for:
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- Strong production experience with React and Node.js
- Some hands-on experience with LLMs — integrating APIs, prompt/pipeline design, or building AI-assisted features
- Comfortable owning features end-to-end in a fast-moving startup environment
- Bonus: interest or background in fintech/data-heavy domains
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