Job Details

Principal Engineer - Software Engineering

Job Description
Principal Engineer - Software Engineering (Kubernetes )

Client: BAE Systems (Submarine Solutions)
Location: Frimley, Surrey (hybrid 2 to 3 days onsite)
Contract: 12 months
Rate: -50 PAYE or -67.47 UMB

BAE Systems (Submarine Solutions) is looking for an experienced Kubernetes Principal Engineer / Platform Architect to shape the architecture and engineering standards for introducing containerised workloads into their Continuous Integration environment.

This is not a "run and operate a cluster" role. The focus is on technical leadership and platform design: defining the approach, standards and governance that will support secure, scalable adoption across teams.



What you'll be doing

  • Define end-to-end target architecture for CI workloads running on Kubernetes
  • Design workload isolation, networking, artefact flow, autoscaling and resource management
  • Build out a secure container supply chain approach (image build, scanning, promotion, registry design, environment separation)
  • Set direction on policy enforcement and secrets management integration
  • Establish an observability/operating model (logging, metrics, monitoring, alerting)
  • Create a migration strategy (candidate workloads, phased plan, risks and rollback)
  • Provide hands-on input into an on-prem Kubernetes environment to support experimentation, analysis and design decisions
  • Mentor engineers and influence delivery across a complex engineering environment


What we're looking for

  • Strong experience designing Kubernetes platforms (not just administering)
  • Hands-on background designing, building and maintaining on-prem Kubernetes clusters (ideally 5+ years)
  • Experience integrating Kubernetes into CI/CD / DevSecOps toolchains
  • Ansible and Infrastructure as Code experience
  • Solid Linux and IP networking knowledge
  • Understanding of container supply chain security
  • Comfortable operating at engineering leadership / architecture level


Skills: * Ability to operate at engineering leadership / architecture level * Strong experience designing Kubernetes platforms, not just operating them * Proven experience integrating Kubernetes with CI/CD systems * Experience with multi-team platform design and governance Desirable: * Experience with GitOps (e.g., ArgoCD, Flux) * Experience with cloud-native build tooling (e.g., BuildKit, Kaniko) * Familiarity with enterprise-scale engineering environments Qualifications: * (Ideally 5+ years experience) * STEM, CEng, Chartered IT Professional (CITP) ect