Senior Platform Engineer - Defence / Security in EC1

Job Description

Senior Platform Engineer - Defence / Security\n\nActive DV clearance required\n\nSR2 is supporting a leading digital technology consultancy as it looks to appoint a number of Senior Platform Engineers into its growing Defence and Security practice.\n\nThis 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.\n\nThis 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.\n\nKey Responsibilities\n\nDesign, build and support secure AWS cloud platform components for Defence and Security programmes\nWork closely with architects on cloud platform deployment, design and technical decision-making\nBuild, maintain and improve CI/CD pipelines for reliable software and infrastructure delivery\nAutomate infrastructure and platform services using tools such as Terraform, Ansible or equivalent\nWork with AWS services such as Lambda, S3 and wider cloud- tooling\nMonitor, secure and continuously improve cloud platforms using tools such as Prometheus and Grafana\nApply security best practice across AWS environments, including firewalls and secure cloud controls\nCoach and mentor junior engineers, helping to build strong DevOps engineering standards across the teamSkills & Experience\n\nActive DV clearance is essential; candidates must already hold DV clearance\nStrong, recent hands-on AWS cloud platform experience\nExperience designing, building, testing, automating, monitoring and supporting modern digital service platforms\nGood experience building CI/CD pipelines\nInfrastructure as Code and automation experience, ideally with Terraform and/or Ansible\nGood understanding of cloud security, AWS security controls and secure platform design\nScripting or coding experience in Python, Bash, Node.js or similar\nExperience working in multidisciplinary agile, DevOps or platform engineering teamsPackage & Benefits\n\nCompetitive salary\n£500 per month DV allowance\nClear progression routes into Lead Platform Engineer, Tech Lead or Platform Technical Architect roles\nAnnual promotion cycle, with out-of-cycle promotions considered on a case-by-case basis\nOpportunity to work within one of the organisation's fastest-growing strategic areas