T3 Operations & Support Specialist — Network & Security (PID9067)

This is a remote position.

T3 Operations & Support Specialist Network & Security (PID9067)

• Contract / Freelance
  
• Full-time
  
• Remote with travel readiness required (Germany)
  
• Start: ASAP
  

About the role

We are working with a long-standing anchor client to source a T3 Operations & Support Specialist (Network & Security) for a large-scale cloud-native platform programme supporting a major energy transmission operator in Germany. The platform is a service-oriented hybrid cloud environment providing application teams with self-service capabilities to develop run and operate software products across private and public cloud infrastructure.

In this role you will provide Tier-3 operational ownership for Network & Security services within Local Production (DE) resolving complex connectivity and security incidents driving RCA and remediation across the network/security stack and ensuring operational readiness for all network and security changes.

What youll be doing

• Providing T3 operational ownership for Network & Security services: resolving complex incidents driving RCA and remediation across the full network/security stack
  
• Ensuring operational readiness for network/security changes: monitoring/alerting validation steps rollback strategies runbooks and maintenance procedures
  
• Supporting compliance-relevant operational controls (logging/monitoring evidence access enforcement patterns vulnerability handling coordination)
  
• Coordinating with platform and Kubernetes teams to resolve cluster and application impacts caused by network/security constraints
  
• Executing and improving standard operational procedures through automation to reduce toil and improve MTTR and stability
  
• Monitoring system health performance metrics and service availability across multi-tenant environments
  
• Identifying analysing and resolving incidents to minimise service disruption and triggering RCA and corrective actions
  
• Implementing monitoring and logging strategies to support audit and compliance requirements
  
• Performing routine security scans and remediating identified vulnerabilities
  

What youll need

• 5 years operating enterprise networks in private cloud or data centre production environments
  
• Proven experience implementing and leading Incident Problem Change and Release governance in production
  
• Proven incident response and troubleshooting skills across routing firewalling connectivity and service exposure patterns
  
• Strong understanding of security fundamentals and operational enforcement in production contexts
  
• Networking: WAN/LAN routers and firewalls (enterprise operations) from Cisco Juniper and Palo Alto
  
• Network and security software: ACI APSTRA and Panorama
  
• Connectivity services: tenant private networking and connectivity patterns supporting production platforms
  
• DNS and certificates: DNS operations and certificate lifecycle handling (issuance renewal rotation coordination) via Infoblox
  
• ITSM tooling: Jira Service Management Jira Confluence
  
• Fundamental understanding of core operations processes (Incident Change Problem management ITSM) and SRE concepts
  
• Experience gathering operational insights from monitoring/observability including SLI/SLA/SLO management and tracking
  
• Hands-on experience documenting procedures and enforcing clear runbooks and playbooks
  
• Hands-on experience with monitoring and logging tools (e.g. Prometheus Grafana Datadog Mimir Loki)
  
• Understanding of modern platform operations (Kubernetes/containers automation observability) sufficient to govern specialists
  
• Fluent English and German (C1 minimum in both)
  

Desirable

• Experience operating in regulated or high-availability industries (banking telco public sector healthcare)
  
• Experience with enterprise ITSM and change governance in regulated environments
  
• Experience with SRE practices (SLOs/SLIs error budgets) and reliability management
  
• Familiarity with enterprise DevOps toolchains (GitLab JFrog Artifactory Backstage Harness)
  
• IaC/GitOps: Terraform/OpenTofu Helm/ArgoCD