Senior Data Engineer

Senior Data Engineer – AI & Data Orchestration

London (Hybrid)

Salary: Up to £60,00 to £80,000 + Equity + Bonus.

Stop building pipelines that just move data. Start building intelligence.

Our client is a fintech company at the intersection of behavioural science and financial technology. They don’t just crunch numbers — they understand why people make the decisions they do, and they’re using AI to make those insights scale.

They’re looking for a Senior Data Engineer who gets excited about turning messy, multi-source data into elegant, AI-ready architectures. This person will be the architect behind the curtain, making sure their behavioural scientists, ML engineers, and analysts have the rocket fuel they need.

What they’ll actually do:

• Build rock-solid data pipelines across AWS (S3, Glue, Athena, Bedrock, OpenSearch) and Microsoft (Fabric, Power BI)
  
  
• Wrangle data from everywhere: RDS, MongoDB, HubSpot, S3 lakes — you name it
  
  
• Create the data foundations for their AI/ML initiatives (RAG workflows, LLMs, embeddings)
  
  
• Make Power BI dashboards that actually refresh when they’re supposed to
  
  
• Implement governance that doesn’t make people want to scream (metadata tagging, lineage tracking, the good stuff)
  
  
• Collaborate with brilliant behavioural scientists and product teams who’ll challenge them in the best ways
  
  The ideal candidate will:
  
  
• Know their way around AWS data tools (Glue/PySpark, Athena) and Microsoft Fabric
  
  
• Be able to write clean Python and SQL in their sleep
  
  
• Have battle scars from integrating CRMs (HubSpot, Salesforce) via APIs
  
  
• Actually care about data quality, not just “it ran successfully”
  
  
• Get a kick out of making complex data architectures simple and elegant
  
  
• Be able to explain technical decisions to non-technical humans
  
  Bonus points:
  
  Experience with Delta Lake/Iceberg, real-time streaming, or LLM orchestration
  
  What’s on offer:
  
  
• Work on genuinely interesting problems (behavioural + financial data = never boring)
  
  
• Shape the data strategy from the ground up — real influence, not ticket-shuffling
  
  
• Hybrid working with actual flexibility
  
  
• EMI equity scheme (because they believe people should share in what they build)
  
  
• Collaborate with world-class behavioural scientists and researchers
  
  
• Performance bonuses tied to real outcomes
  
  The practical bit:
  
  
• Location: London-based, hybrid model
  
  
• Salary: Up to £80,000
  
  
• Reports to: CTO
  
  
• Team vibe: Small, smart, collaborative — your voice matters from day one