Senior Data Engineer – Scalable Pipelines & AI Tools

Just Eat Takeaway.com; Loughton; On-site; GBP 90,000 - 120,000; Full time

Job summary

Just Eat Takeaway.com seeks an experienced Senior Data Engineer to join the Insights & Enablement team within Retail Media Tech. You’ll shape the data platform spanning event streaming, Gold Layer data marts in BigQuery, and AI-powered tooling to support advertisers’ understanding and optimisation of campaigns.

You’ll collaborate with data scientists, ML engineers, and product managers to deliver reliable production systems, mentor engineers, and raise the technical bar across the team.

Qualifications

• Demonstrable senior-level experience building and delivering data engineering solutions, including distributed systems, event-driven architectures, and large-scale data processing (batch and streaming).
• Strong Python skills and solid SQL across BigQuery or equivalent cloud data warehouses; familiarity with Scala or Java is a plus.
• Hands-on experience with dbt Core (or dbt Cloud) and Airflow for orchestration and transformation at scale.
• Solid grounding in data warehouse and data lake architecture, including dimensional modelling and layered architectures (Gold/Silver/Bronze or equivalent).
• Production experience with GCP (BigQuery, Dataflow, GCS) and AWS (S3, Iceberg, Kinesis, DynamoDB).
• Familiarity with OLAP and OLTP storage systems and an eagerness to build expertise in stream processing technologies such as Apache Flink, Kafka, or Spark.

Responsibilities

• Design and build scalable data pipelines and event streaming architectures across batch and near-real-time workloads, with a focus on reliability and data quality.
• Develop and maintain Gold Layer data marts in BigQuery using dbt Core, with a strong grasp of top-down/bottom-up data modelling methodologies (Kimball, OBT, or equivalent).
• Build and maintain Airflow-orchestrated ELT workflows across the retail media data platform, including attribution pipelines supporting campaign performance and incrementality measurement.
• Contribute to Retail Media event tracking infrastructure, schema governance, SLA/SLO monitoring, and data quality validation across the unified events pipeline.
• Support the development of a semantic layer (Cube.dev/Helix) bridging BigQuery Gold tables to downstream BI tooling.
• Begin to contribute to architecture discussions beyond your immediate team, identifying improvement points in individual components and the system as a whole, with a clear path to shaping platform-level decisions at Staff level.
• Embed DataOps best practices across the team: CI/CD, testing, observability, data drift monitoring, and incident response using tools like Grafana and Datadog.
• Collaborate with ML engineers and data scientists to productionise models and agentic tooling built on internal AI platforms, with hands-on use of AI-assisted development tools such as Claude.ai, OpenAI, GitHub Copilot, and Cursor as part of your everyday engineering workflow.

Skills

Python

SQL

Data modeling

BigQuery

Cloud data warehouses

Flink

Kafka

Spark

Data pipelines

Tools

dbt Core

Airflow

Claude.ai

OpenAI tools

GitHub Copilot

Cursor

Job description

Just Eat Takeaway.com seeks an experienced Senior Data Engineer to join the Insights & Enablement team within Retail Media Tech. You’ll shape the data platform spanning event streaming, Gold Layer data marts in BigQuery, and AI-powered tooling to support advertisers’ understanding and optimisation of campaigns.

You’ll collaborate with data scientists, ML engineers, and product managers to deliver reliable production systems, mentor engineers, and raise the technical bar across the team.