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

Interval•Berlin, IL

10d•Remote

About The Position

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.

Requirements

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)

Nice To Haves

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

Responsibilities

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