via reed · 1 June 2026 ·4 days ago

Data Engineer (AI/ML Startup)

Marshall Wolfe
London Full-time GBP 50,000 – 60,000
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Data Engineer

A rapidly scaling AI startup is looking for a hands-on Data Engineer to join their highly technical team. This is an exceptional opportunity to work on cutting-edge machine learning and real-time optimisation products used by clients processing millions of customer interactions per day.

You’ll join a small, elite engineering group where your work has immediate impact. The environment is fast, collaborative and low-bureaucracy — ideal for someone who thrives in a startup setting and wants real ownership.

The role

You’ll be responsible for designing, building and maintaining the data pipelines that power the company’s AI-driven products. This includes:

  • Building scalable, reliable ETL processes and data pipelines

  • Working closely with data scientists to productionise models

  • Designing and maintaining data architecture for new products

  • Monitoring and improving data quality, performance and reliability

  • Contributing to engineering best practices (testing, code review, documentation)

What we’re looking for

Must-have experience:

  • Proven experience building scalable ETL processes and data pipelines

  • Advanced Python skills (production-grade, performant code)

  • Strong hands-on experience with pandas

  • Strong SQL Server skills

  • Experience with cloud platforms (Azure or AWS)

  • Experience using Git in a team environment

  • Hands-on experience using AI coding tools (e.g., Copilot, Cursor, Claude, Codex)

Nice to have:
  • Experience with Airflow, Dagster or other orchestration tools

  • Experience with data lakes (Synapse, Snowflake)

  • Experience with Docker

  • Experience with streaming technologies (Kafka, RabbitMQ)

  • Experience with Spark or other big-data tools

Hybrid working – 3 days per week in a central London office (Tues - Thurs)

If you’re excited by the idea of building the data foundations of next-generation AI products — even if you don’t tick every box — we’d love to hear from you.

The market for this type of role

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Marshall Wolfe

7 open positions · London

📊 Engineering · the UK
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active jobs
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