Senior Backend Engineer/Data Scientist - Fully Remote - OUTSIDE - £500 per day (LLM/AI))

Rapidly growing Digital consultancy urgently seeks an AI literate hybrid Senior Backend Engineer / Data Scientist on a short-term fully remote outside IR35 contract. You will be customer-facing and will work independently with their Life Sciences client to build them a bespoke AI-powered tool. You will be required to deliver a functional data pipeline quickly.

This tool is required for a large-scale web migration project to help automate the URL redirect mapping process. The solution is expected to be a fast, standalone build.

Contract Details:

• Start Date: Ideally Monday 17th Nov 2025, or by no later than Thursday 20th Nov 2025.
• End Date: Tuesday 9th December 2025.
• Determination: Outside IR35.
• Day Rate: £500 per day.
• Location: FULLY REMOTE.
• Interview Process: One Stage.

The Tool will:

• Ingest data by connecting to a WordPress VIP API to pull content from numerous source websites.
• Analyse the content of each source page using an LLM for semantic analysis and matching .
• Compare the analysis against a manually provided spreadsheet (CSV/Excel) that defines the new destination site structure.
• Output a final structured spreadsheet (CSV/Excel) that maps the "Source URL" to the most relevant "Destination URL," including a confidence score for manual review.

Ideal Experience required:

• Data Pipeline Development: Proven experience building data ingestion pipelines, specifically working with third-party REST APIs.
• Generative AI & NLP: Hands-on experience using LLMs for semantic matching, classification, and outputting structured JSON.
• You will be familiar with the concepts and libraries required for our recommended LLM approach.
• Languages: Python, TypeScript, or .NET are all acceptable.
• Working with OpenAI Batch API and Wordpress API.
• Hosting/DB: Familiarity with a SAAS database (like Supabase) for data persistence.