FEL260708P2C2: Senior Platform & DevOps Engineer (Kubernetes | GitOps) - 60% Remote, Brussels, ASAP

joyIT Recruiting GmbH
Contact person: joyIT Recruiting GmbH
Brüssel,  Belgium
60% remoteFreelanceStart date 8/2026Duration 17 months100% workload
Energy IndustryObservabilityArgo CDTempoGitOpsKongOpenTelemetryHelmPlatform EngineeringLokiKubernetes SecurityChange ManagementLinuxDevOpsDomain Name System (DNS)Incident ManagementPostgreSQLMongoDBRedisRelease ManagementPrometheusDistributed CachingKusto Query LanguageTCP/IPVulnerability ManagementYAMLMonitoring ResultsDocker ContainerCloud Platform SystemAutoscalingGrafanaInfrastructure as Code (IaC)GitKubernetesRancherHashicorpApi GatewayDevSecOpsDocker

Description

Our client is a leading European operator of critical energy infrastructure. You will join the Platform Operations team and help operate and continuously improve a highly available Kubernetes-based cloud platform supporting mission-critical customer services.

Service Description
The Platform Engineer is responsible for operating and maintaining a highly available Kubernetes-based cloud platform. The focus is on platform operations, lifecycle management, incident response and operational excellence to ensure secure, reliable and performant services.

Primary Objectives
  1. Maintain platform availability and reliability (SLOs/SLAs)
  2. Ensure operational readiness across DEV / TEST / ACC / PROD
  3. Participate in the 24/7 on-call rotation
  4. Maintain platform observability and security
  5. Execute platform changes, upgrades and maintenance

Responsibilities
Kubernetes & Runtime Operations
  1. Operate Kubernetes primitives and platform add-ons (Ingress Controllers, Service Discovery, Workload Identity)
  2. Troubleshoot Kubernetes failures including pod lifecycle, networking and resource issues
  3. Execute controlled rollouts with rollback plans
Reliability & Incident Response
  1. Participate in the 24/7 on-call rotation
  2. Perform incident triage, mitigation and Root Cause Analysis (RCA)
  3. Maintain runbooks and operational procedures
Observability & Monitoring
  1. Operate the observability platform
  2. Ensure metrics, logs, traces and actionable alerts
  3. Support incident analysis through telemetry and correlation
Change & Maintenance
  1. Plan and execute platform changes
  2. Follow structured change management
  3. Communicate with stakeholders
  4. Ensure all changes are documented and auditable
Security & Compliance
  1. Operate RBAC, network boundaries and secret management
  2. Apply security updates and patches
  3. Support vulnerability remediation and audits
Automation
  1. Automate operational tasks
  2. Improve standardization and reduce operational risk
  3. Apply a Platform-as-Code (GitOps) approach

Requirements
Kubernetes
  1. Multi-cluster lifecycle management
  2. RBAC & least-privilege design
  3. Network Policies
  4. Stateful workloads (CSI, PV/PVC)
  5. Autoscaling (HPA/VPA)
  6. Pod Security Standards
  7. Admission Controllers
  8. Performance troubleshooting
  9. Cluster debugging (Networking, DNS, Scheduling, OOM, Crash Loops)
GitOps & Continuous Delivery
  1. Advanced ArgoCD
  2. App-of-Apps
  3. Sync Waves & Hooks
  4. Drift Detection
  5. Multi-environment promotion
  6. Git-based deployments
  7. Declarative platform design
  8. Harness.io CI/CD
  9. Secure secret handling with HashiCorp Vault
Packaging & Configuration
  1. Advanced Helm
  2. OCI registries
  3. Kustomize overlays
Container & Artifact Management
  1. Docker
  2. Harbor
  3. JFrog Artifactory
  4. Artifact versioning
Security
  1. HashiCorp Vault
  2. CSI Integration
  3. Image vulnerability scanning
  4. TLS & certificate lifecycle
  5. RBAC governance
Observability
  1. OpenTelemetry
  2. Prometheus or VictoriaMetrics
  3. Loki
  4. Tempo
  5. Grafana
  6. SLI/SLO concepts
  7. Error budgets
  8. Alert optimization
Networking
  1. TCP/IP
  2. DNS
  3. TLS / mTLS
  4. Kubernetes Services
  5. Ingress
  6. Reverse Proxy
  7. API routing
  8. Network Policies
Automation
  1. Advanced Bash scripting
  2. Infrastructure automation mindset
Nice to Have
  1. Kong API Gateway
  2. Redis
  3. PostgreSQL
  4. MongoDB
  5. Kargo (ArgoCD)
Operational Skills
  1. Production platform operations experience
  2. Strong troubleshooting across distributed systems
  3. Calm under pressure
  4. Excellent communication
  5. Ability to balance operations with continuous improvement
Ways of Working
  1. Structured, detail-oriented and risk-aware
  2. Strong ownership mentality
  3. Collaborative with Development, Security and Product teams
  4. Documentation-first mindset

Project Details
Start: August
Duration: until December 2027, 17 months, with possible extension
Location: Brussels, Belgium
Work Model: Hybrid (2 days onsite per week)
Workload: Full-time

Please activate the "Send E-Mail" option when submitting your application. After your application has been submitted, you will automatically receive a link to complete the next steps in the recruiting process.
The further application process for projects is managed via our website: www.joyit.de

We look forward to receiving your application.

Your joyIT Team


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