Principal Platform Engineer

Salary: £100,000 - 100,000 per year

Requirements:

• We need strong experience across several of the following areas: AWS cloud platforms.
• We need strong experience across several of the following areas: Kubernetes, ideally EKS, AKS or OpenShift.
• We need strong experience across several of the following areas: Terraform or Infrastructure as Code (IaC).
• We need strong experience across several of the following areas: CI/CD automation.
• We need strong experience across several of the following areas: GitOps tools such as ArgoCD or Flux.
• We need strong experience across several of the following areas: Internal Developer Platforms or self-service engineering.
• We need strong experience across several of the following areas: Observability tools including Prometheus, Grafana, OpenTelemetry, ELK, Datadog, Dynatrace or New Relic.
• We need strong experience across several of the following areas: DevSecOps and supply-chain security.
• We need strong experience across several of the following areas: SRE practises, SLOs, SLIs and incident management.
• We need strong experience across several of the following areas: Platform governance, cloud standards or landing zones.
• We need strong experience across several of the following areas: FinOps and cost optimisation.
• We are particularly interested in candidates who have worked in large-scale enterprise, financial services, telecoms, retail, defence, public sector, travel, media or other highly regulated environments.
• This role could suit a technical lead, a hands-on architect, a senior platform engineer ready to progress, or a deep SME in Kubernetes, AWS, observability, cloud platforms or developer enablement.
• SC cleared or SC eligible required.

Responsibilities:

• We will design, build and improve secure cloud platforms, internal developer platforms and reusable engineering capabilities across complex client environments.
• We will design secure multi-account AWS landing zones and cloud platforms.
• We will build internal developer platforms and self-service capabilities.
• We will design and operate production-grade Kubernetes platforms, including EKS, AKS or OpenShift.
• We will define engineering standards, golden paths, reusable modules and platform patterns.
• We will build observability strategies using Prometheus, Grafana, OpenTelemetry and modern APM tooling.
• We will improve reliability through SLOs, incident reviews and Site Reliability Engineering (SRE) practises.
• We will embed DevSecOps, supply-chain security and secure CI/CD practises.
• We will drive cloud-native modernisation and legacy transformation.
• We will support FinOps and cloud optimisation across large estates.
• We will lead design reviews, technical workshops and mentor engineers.
• We will collaborate closely with architects, engineering teams and senior stakeholders to solve complex platform challenges.

Technologies:

• AWS
• Architect
• ArgoCD
• CI/CD
• Cloud
• Datadog
• DevSecOps
• Dynatrace
• ELK
• GitOps
• Grafana
• Support
• Kubernetes
• OpenTelemetry
• OpenShift
• Prometheus
• Security
• Terraform
• DevOps

More:

We are supporting a major Platform Engineering growth programme delivering secure, cloud-native platforms across some of the UKs largest and most complex technology environments. These platforms underpin critical digital services used at a national scale, supporting modern engineering teams working across cloud, data, security, automation and public sector transformation. This opportunity is aimed at experienced Platform Engineers, Technical Leads, Principal Engineers and strong Platform SMEs who have operated at scale and wish to influence how large organisations build, deploy and operate software. You will remain hands-on while having genuine influence over platform direction, engineering standards, governance, reliability and developer experience. The role is UK-wide with hybrid working, and our offices are in Bristol, Woking, Worthing and St Pauls London, with up to 6 days per month in the office. We offer a salary of £90,000 - £110,000 plus benefits and clear progression into Lead, Principal or Architecture career pathways. We are looking for people who want to join a strong Platform Engineering community, solve complex cloud and reliability challenges, and influence engineering direction at a senior level.

last updated 31 week of 2026