Job Description:

Senior Platform Engineer - Defence / National Security

Active DV clearance required

SR2 is supporting a leading digital technology consultancy as it looks to appoint a number of Senior Platform Engineers into its growing Defence and National Security practice.

This is a hands-on, end-to-end cloud engineering role supporting a secure cloud platform programme, focused on helping a major public sector organisation move from on-premise environments into AWS cloud. You will help design, build, automate, secure and support modern cloud platforms used on nationally important services.

This opportunity is particularly well suited to a senior engineer with strong, recent AWS platform experience, a good understanding of CI/CD and automation, and the ability to contribute to platform design decisions while mentoring junior engineers. You will work closely with architects, security specialists and wider engineering teams to deliver scalable, secure and reliable cloud services in a complex secure environment.

Key Responsibilities

• Design, build and support secure AWS cloud platform components for Defence and National Security programmes
• Work closely with architects on cloud platform deployment, design and technical decision-making
• Build, maintain and improve CI/CD pipelines for reliable software and infrastructure delivery
• Automate infrastructure and platform services using tools such as Terraform, Ansible or equivalent
• Work with AWS services such as Lambda, S3 and wider cloud-native tooling
• Monitor, secure and continuously improve cloud platforms using tools such as Prometheus and Grafana
• Apply security best practice across AWS environments, including firewalls and secure cloud controls
• Coach and mentor junior engineers, helping to build strong DevOps engineering standards across the team

Skills & Experience

• Active DV clearance is essential; candidates must already hold DV clearance
• Strong, recent hands-on AWS cloud platform experience
• Experience designing, building, testing, automating, monitoring and supporting modern digital service platforms
• Good experience building CI/CD pipelines
• Infrastructure as Code and automation experience, ideally with Terraform and/or Ansible
• Good understanding of cloud security, AWS security controls and secure platform design
• Scripting or coding experience in Python, Bash, Node.js or similar
• Experience working in multidisciplinary agile, DevOps or platform engineering teams

Package & Benefits

• Competitive salary
• £500 per month DV allowance
• Clear progression routes into Lead Platform Engineer, Tech Lead or Platform Technical Architect roles
• Annual promotion cycle, with out-of-cycle promotions considered on a case-by-case basis
• Opportunity to work within one of the organisation's fastest-growing strategic areas