Principal Data Engineer

Location: We operate a flexible, hybrid working environment with the candidate required to travel to either our Winchester or London office once or twice a week.

We offer

• Up to £80K
  
  
• 10% bonus
  
  
• 6% pension contribution
  
  
• Private Medical
  
  
• 25 days annual leave
  
  Purpose
  
  We’re looking for a hands-on Principal Data Engineer to lead the design and development of scalable, secure cloud-based data platforms and pipelines that power enterprise analytics, reporting, and real-time decision-making.
  
  This is a strategic and technical leadership role, ideal for someone with deep expertise in AWS, Databricks, Apache Spark, and Python/SQL, who can mentor teams, influence architecture, and deliver end-to-end data solutions across a modern tech stack.
  
  Accountabilities
  
  
• Design and deliver enterprise-scale data architectures on AWS using services like S3, EMR, Glue, Redshift, Lambda, and IAM.
  
  
• Build and manage robust ETL/ELT pipelines supporting both batch and real-time data ingestion and transformation.
  
  
• Deploy and optimise Apache Spark jobs, leveraging Databricks and Delta Lake for distributed data processing.
  
  
• Lead the implementation of unified analytics workflows, integrating Databricks with the wider AWS environment.
  
  
• Write clean, efficient, and reusable code in Python, building production-ready data transformation scripts.
  
  
• Develop complex SQL queries across multiple RDBMS and cloud-native warehouses.
  
  
• Drive data quality, lineage, and governance standards across structured and unstructured datasets.
  
  
• Collaborate with data scientists, analysts, and business stakeholders to define and deliver scalable solutions.
  
  
• Provide technical mentorship and thought leadership to data engineers and wider delivery teams.
  
  
• Promote automation and operational efficiency through CI/CD, containerisation (e.g. Docker/ECS), and infrastructure as code.
  
  Skills
  
  
• Python, SQL, PySpark, Scala, Java
  
  
• AWS (S3, Glue, Redshift, Lambda, EMR, IAM, ECS, SageMaker), Databricks, Delta Lake
  
  
• Apache Spark, Airflow, Dagster, Rundeck
  
  
• Kafka, Logstash, NiFi
  
  
• PostgreSQL, Oracle DB, MongoDB
  
  
• ELK Stack (Elasticsearch, Logstash, Kibana), Dynatrace, CloudWatch
  
  Knowledge & Experience
  
  
• Senior/principal data engineering roles with hands-on leadership experience.
  
  
• Proven success in designing and deploying cloud-native data solutions, particularly on AWS.
  
  
• Advanced experience with Apache Spark, Databricks, and real-time data processing.
  
  
• Strong capability in writing and optimising complex SQL and Python code.
  
  
• Background in handling large-scale data transformations and integrating multiple data sources.
  
  
• Experience with data lakes, Delta Lake, and modern analytics platforms.
  
  
• Skilled in stakeholder engagement, mentoring engineers, and delivering high-quality solutions in fast-paced environments.
  
  
• A passion for simplifying complex problems and building future-proof data infrastructure.
  
  We are the undisputed leader in UK TV and radio broadcast, and the UK’s leading Smart utilities platform, directly shaping the future of connectivity.
  
  Through our established infrastructure we ensure that media and data are delivered exactly where they’re needed most, whether it’s bringing content to your TV or radio or transmitting data from your smart meter to your utility provider - chances are our services are a part of your daily life, seamlessly connecting you through our behind-the-scenes technology.
  
  With an impressive history and an innovative future ahead of us, leading the transition of global media distribution to cloud based solutions and creating scalable solutions for new connectivity sectors - you’ll have many opportunities to develop and grow your unique career with us.
  
  Why Arqiva? Reward . Connection . Growth
  
  At Arqiva, we believe in supporting you to be your best, both at work and outside of it. That’s why our rewards and benefits go far beyond your pay; take a look at our totalreward2025 booklet.
  
  Here, you’ll find endless opportunities to connect, whether that’s with colleagues through our internal networks and events or by making a difference in the communities where we work.
  
  And when it comes to your career, we’re committed to helping you grow. Whether you want to become a specialist in your field or climb to the top, we’ll support you every step of the way