Senior Full Stack Software Engineer

Join our growing team and help strengthen the UK’s safety and resilience.

We’re a leading technology and engineering company supporting customers across National Security, Defence and Intelligence, delivering systems that operate in the most demanding and sensitive environments.

As a Senior Software Engineer, you’ll deliver mission critical solutions for National Security customers - building products that protect people, platforms, missions and information against evolving threats.

You’ll help customers use data to improve mission outcomes, lead teams hands-on, and mentor others while working at the forefront of innovation.

Responsibilities

Solution design and architecture

Design cloud-native data processing architectures in AWS
Define scalable big data solutions on a Hadoop based platform
Evaluate appropriate technologies and patterns for data ingestion, transformation, and storage
Produce architecture diagrams and technical design documentation
Support secure and resilient system design aligned with customer standards

Data engineering and pipeline development

Develop and maintain data ingestion and transformation pipelines
Implement batch data workflows across distributed systems
Work with large datasets using Hadoop and related technologies
Write data processing scripts using Python, Pig, and Java-based frameworks

Cloud platform engineering

Use AWS services such as Step Functions, S3, Lambda and EMR
Implement infrastructure automation via CDK or Terraform

Performance optimisation

Optimise distributed data processing jobs for performance and cost efficiency
Troubleshoot issues across Hadoop clusters, data pipelines, and applications
Monitor system health and resolve operational incidents

Consultancy and stakeholder engagement

Work directly with technical and non-technical stakeholders to understand requirements
Provide technical guidance and best-practice recommendations
Support project planning, estimation, and technical decision-making within the SAFe customer business unit
Present technical solutions and trade-offs clearly

Required Skillset

Experience with AWS services and cloud-native design patterns
Understanding of cloud security, identity management, and networking fundamentals
Experience with Big data platforms e.g. Hadoop
Understanding of distributed data processing concepts
Experience working with large-scale datasets and cluster-based processing
Experience building and managing data flows
Knowledge of data ingestion, transformation, and orchestration patterns
Strong experience in Python or Java
DevOps experience e.g. Git, GitLab, CI/CD pipelines, Containerisation

Why Roke

You’ll work with smart, supportive people on projects that genuinely matter, in an environment that values technical excellence, collaboration and continuous learning. We invest in your growth, value diverse thinking and offer flexible working alongside a strong benefits package (including 30 days’ holiday plus bank holidays). Roke combines a 70+ year heritage with the agility to make a real impact.

Location:

Based in Gloucester and customer sites for high‑side integration/deployment. Limited hybrid working may be possible, subject to project needs and may vary between assignments.

Clearance:

Valid SC clearance is required for this post. If you are eligible but don’t hold SC, please explore other engineering roles via Roke’s Careers Page. Eligibility details can be found on gov.uk.