Principal Data Engineer

Overview

In this Principal Data Engineer role, you will design and maintain data pipelines to enable analytical use across diverse data sources. You’ll join a cross-functional Agile software team within Raytheon UK’s Defence and Cyber business, shaping data-driven solutions for mission-critical challenges. You will optimize data processing and contribute to technical direction and continuous improvement. The role offers exposure to cutting-edge analytics in a high-security environment with a strong emphasis on collaboration and delivery.

Pay / Benefits

• Competitive salary
• Contributory Pension Scheme (up to 10.5% company contribution)
• 25 days holiday + holidays
• Discretionary company bonus
• Flexible Benefits with salary sacrifice schemes
• Enhanced sick pay

Responsibilities

• Build data pipelines to clean, transform, and aggregate data from disparate sources
• Collaborate with stakeholders and other engineers
• Contribute to project milestones and team continuous improvement
• Shape technical direction within the team

Key requirements

• Experience in an Agile delivery team
• Strong analytics with unstructured data
• Python (PySpark, Pandas, PyArrow)
• Distributed data processing (Apache Spark)
• Data ETL (Apache Airflow, AWS Step Functions, Apache NiFi)
• Cloud services (AWS, Azure or GCP)
• Messaging/Streaming (Kafka, AWS SQS)
• SQL and NoSQL
• Storage (HDFS, Iceberg, Elastic, S3, Data Lake)
• Containerisation and orchestration (Docker / Kubernetes / Openshift)
• Testing frameworks and best practices
• Code repositories and PR/merge processes

• Collaborative
• Detail-oriented
• Problem-solving
• Python (PySpark, Pandas, PyArrow)
• Apache Spark
• Apache Airflow

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