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Senior Site Reliability Engineer, SRE
InvestigoSenior Site Reliability Engineer managing Kubernetes infrastructure and ensuring operational maturity. Focused on UK government regulated environments with strong emphasis on reliability and security.
Core Competencies
Role fitCore Competencies
Use this summary to align your resume positioning with the role.
Demonstrates expertise in operating and hardening Kubernetes environments, with a strong focus on CI/CD processes, GitOps practices, and cloud-native application delivery. Proficient in automation and observability tools, ensuring secure and efficient platform management.
Highest-signal resume keywords
Kubernetes Environment ManagementCI/CD Processes OwnershipGitOps Deployment PracticesInfrastructure as Code (Ansible, Terraform)Observability Tools (Prometheus, Grafana)
ATS Keywords
Tailor your resumeApplicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills
KubernetesOpenShiftOKDAnsibleTerraformHelmKustomizeGoPythonLinux Fundamentals
Soft Skills
Strong Troubleshooting SkillsAnalytical SkillsStrong Written CommunicationStrong Verbal Communication
Tools & Technologies
Argo CDPrometheusGrafanaElastic StackKeycloakService MeshVirtualization PlatformsGitHub ActionsOpenTelemetryNetworking Technologies
Certifications & Qualifications
CKACKADCKSRed Hat CertificationsUK SC Clearance
Industry Keywords
Cloud-NativeCI/CDGitOpsObservabilitySecure EnvironmentsRegulated EnvironmentsEnterprise-ScaleIdentity and Access ManagementInfrastructure as CodeSoftware Supply Chain Security
Tech Stack
Tools & technologiesAnsibleCloudFluxGoGrafanaKubernetesLinuxOpenShiftPrometheusPythonShell ScriptingTerraformVMware
About the role
Key responsibilities & impact- Operate, harden and extend production OpenShift / OKD / Kubernetes clusters across on-premises and hybrid environments.
- Supporting migrations, helping modernise the underlying compute and infrastructure layer.
- Own CI/CD processes across the full lifecycle of platform and application components.
- Own and mature GitOps deployment practices, particularly using tools such as Argo CD.
- Support cloud-native application delivery using tools such as Helm and Kustomize.
- Maintain and improve core platform services including Keycloak, ingress, observability, certificate management, service mesh and container registry capabilities.
- Build and operate observability across logs, metrics, traces, alerting, SLOs and error budgets.
- Improve platform hardening in line with secure and regulated environment requirements.
- Automate repeatable operational tasks using tools such as Ansible, Terraform, Helm, Kustomize, Go, Python or similar.
- Lead incident response activity, support blameless post-mortems and drive systemic fixes.
- Partner with networking and security teams on platform integration, segmentation, load balancing and accreditation evidence.
- Create and maintain clear technical documentation, runbooks, design notes and operational guidance.
- Mentor engineers and act as a senior technical authority across cloud and Kubernetes operations.
- Participate in an on-call rota, with appropriate compensation.
Requirements
What you’ll need- Strong experience running production Kubernetes environments, not just consuming or deploying into them.
- Strong Linux fundamentals, including systems, networking, storage and performance troubleshooting.
- Experience with Kubernetes distributions such as OKD, OpenShift, vanilla Kubernetes, Rancher, EKS, AKS or GKE.
- Infrastructure as code experience, including Ansible plus Terraform or equivalent.
- Experience with Helm, Kustomize or similar cloud-native deployment tooling.
- GitOps and CI/CD experience managing full application and component lifecycles, using tools such as Argo CD, Flux, GitHub Actions or similar.
- Observability across logs, metrics and traces, using tools such as Prometheus, Grafana, Elastic Stack, LGTM and OpenTelemetry.
- Experience with identity and access technologies such as OIDC, SAML, SCIM or Keycloak.
- Experience with virtualisation or infrastructure platforms such as KVM, libvirt or VMware.
- Scripting or tooling experience using Go, Python, shell scripting or similar.
- Strong troubleshooting, problem-solving and analytical skills.
- Experience working in secure, regulated or enterprise-scale environments.
- Strong written and verbal communication skills, with the ability to produce clear documentation, runbooks, post-mortems and technical guidance.
- Eligibility to hold UK SC clearance.
- Desirable (Not Essential)
- Specific OpenShift or OKD experience, including operators, MachineConfig or SCCs.
- Service mesh experience such as Istio or Linkerd.
- Policy engine experience such as OPA, Gatekeeper or Kyverno.
- Software supply chain security experience, including SBOMs, image signing, admission control or tools such as Sigstore.
- Storage experience such as Ceph, Longhorn, OpenShift Data Foundation or equivalent.
- Networking experience including BGP, VXLAN, Palo Alto or Juniper technologies.
- AI, ML or GPU-enabled platform operations.
- CKA, CKAD, CKS, Red Hat certifications or equivalent.
- Active or recent UK SC clearance.
- Recognised open-source contributions to the Kubernetes ecosystem.
Benefits
Comp & perks- Private Medical
- Health Cash Plan
- 4x Life Assurance
- Inclusive Culture: Enjoy an inclusive culture and environment.
- Holiday: Generous holiday allowance.
- Learning: Access to continuous learning and development opportunities.
- Bonus Potential: Bonus potential based on performance and business-related factors.
- Discounts: Discounts on a wide range of products and services.
- Pension: Pension scheme contributions.
- EV Car Scheme
- Regular Pay Reviews
- More Benefits: Explore additional benefits on our career site.