Principal Engineer - Software Engineering

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

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