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 you'll 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
Requirements
What you'll 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
Benefits
As a freelancer / contractor with us, you will enjoy flexible working hours and the freedom to choose your own projects. Our platform gives you access to exciting projects in various industries and supports you in advancing your career. You'll benefit from competitive pay and a dedicated team to help you with any questions you may have. Work independently and utilise our strong network to achieve your professional goals.