Data/Backend Engineer - Retail Media

Overview

Hungry for a challenge? Thats good, because at Just Eat (JET) we have abundant opportunity, or, as we say, everything is on the table. We are a leading global online food delivery marketplace. Our tech ecosystem connects millions of active customers with hundreds of thousands of connected partners in countries across the globe.

Our mission? To empower every food moment around the world, whether its through customer service, coding or couriers.

About this role

Were looking for an experienced Data & Backend Engineer to join the Insights and Enablement team. This newly established team sits within Retail Media, part of Jet Ventures, and plays a pivotal role in shaping how we use data from our Customer Data Platform (CDP), enabling advanced audience segmentation, data visualisation, dashboards and surfacing insights across Retail Media and the broader JET organisation.

This is not a typical Data/Backend Engineer role; youll work at the intersection of software engineering, data engineering and applied AI/ML-designing, deploying, and scaling production systems that bring advanced data science research to production. Youll partner closely with data scientists, product managers, analysts and engineers to transform prototypes into reliable, high performing services that deliver impact for advertisers and customers at scale.

Were seeking self-starters, who are passionate about data, experimentation and emerging technologies in machine learning and AI, and as a senior member of the team, youll do more than code-youll help shape best practices, mentor others, and raise the technical bar.

Location: Hybrid- 3 days a week from our London office & 2 days working from home

Reporting to: Technology Manager

Key responsibilities

• Design and build scalable data pipelines and event streaming architectures with a focus on quality and reliability.
• Develop and optimise backend services, APIs, and databases to power segmentation, recommendation, targeting, and measurement.
• Apply solid data engineering principles-schema design, efficient storage and retrieval, streaming, and ETL/ELT, with a focus on top-down/bottom-up data modelling methodologies.
• Orchestrate complex data workflows using modern tools like Airflow and dbt.
• Champion best practices for DevOps, DataOps, including testing, CI/CD, orchestration, and monitoring.
• Keep systems observable and healthy, monitoring for data drift, model degradation, and service reliability.
• Mentor engineers, sharing knowledge, and helping the team grow stronger together.

What will you bring to the table?

• Experience as a Data Engineer and/or Backend Engineer, with a track record of building and shipping large-scale, real-world data systems.
• Strong Python coding skills and a deep understanding of distributed systems and backend services.
• Develop and optimise backend services, APIs, and databases to power segmentation, recommendation, targeting, and measurement.
• Strong knowledge of both SQL and NoSQL databases like PostgreSQL, BigQuery, Cassandra, or DynamoDB.
• Experience with large-scale data platforms (e.g., Spark, Kafka, Flink, BigQuery) and cloud environments, with a preference for AWS or GCP.
• Expertise in data engineering: pipelines, modeling, batch vs. event streaming, and ETL/ELT.
• Demonstrated experience with modern data orchestration and transformation tools, including Airflow and dbt.
• Proven knowledge of data warehouse design and data lake architecture, with specific expertise in data modeling methodologies like Kimball or Inmon.

At JET, this is on the menu:

Our teams forge connections internally and work with some of the best-known brands on the planet, giving us truly international impact in a dynamic environment.

Fun, fast-paced and supportive, the JET culture is about movement, growth and about celebrating every aspect of our JETers. Thanks to them we stay one step ahead of the competition.

Inclusion, Diversity & Belonging

No matter who you are, what you look like, who you love, or where you are from, you can find your place at Just Eat Were committed to creating an inclusive culture, encouraging diversity of people and thinking, in which all employees feel they truly belong and can bring their most colourful selves to work every day.

What else is cooking?

Want to know more about our JETers, culture or company? Have a look at our career site where you can find peoples stories, blogs, podcasts and more JET morsels.