Senior Data Engineer - London

Senior Data Engineer London

Location: London (Hybrid 4 days in office: Monday, Tuesday, Wednesday)
Salary: 55,000 75,000 (DOE)
Ref: J13073

A fast-growing AI SaaS company is building the data backbone behind its analytics and machine learning products and is looking for a Senior Data Engineer to take ownership of this critical layer.

You'll work at the centre of a modern, cloud-based data platform, designing scalable pipelines and data models that turn large, complex, and often messy datasets into reliable, production-grade data products.

A key requirement for this role is strong, production-level SQL expertise.

You'll be building and optimising complex SQL transformations at scale, ensuring data is accurate, performant, and trusted across analytics and ML use cases.

The environment is modern and cloud-first, with exposure to Spark, Snowflake, and BigQuery across AWS, GCP, and Azure.

You'll also collaborate closely with product, analytics, and machine learning teams and contribute to improving engineering standards.

Key Responsibilities

Build and maintain scalable, production-grade data pipelines
Own end-to-end data workflows from source to production
Write and optimise advanced SQL transformations at scale
Work with complex, imperfect, high-volume datasets
Improve data quality, reliability, and performance
Collaborate with product, analytics, and ML teams
Contribute to engineering best practices

What We're Looking For

Strong Python and advanced SQL in production environments
Experience delivering end-to-end data engineering solutions
Exposure to Spark, Snowflake, BigQuery or similar
Cloud experience across AWS, GCP, or Azure
Comfortable working with messy, large-scale datasets
Strong ownership from design through to deployment

A strong opportunity to shape the data foundations behind AI products in a high-growth, modern engineering environment where SQL is central to success .

Applicants must have the right to work in the UK. Sponsorship is not available.

Job Details

Company
Datatech
Location
London, United Kingdom
Hybrid / Remote Options
Employment Type
Permanent
Salary
GBP 55,000 - 75,000 Annual
Posted