April 9, 2026
Senior Java Developer (OpenShift)
Senior • Remote
Warsaw, Poland
As a recruitment company, DCG understands that every business is powered by experienced professionals. Our management style and partnership approach enable us to meet your needs and provide continuous support. Due to our ongoing growth and the large number of recruitment projects we undertake for our partners, we are currently looking for: Senior Java Developer (OpenShift)
Responsibilities:
Develop and maintain Java microservices (Spring Boot) integrating with databases, APIs, and Kafka/AMQ
Containerize applications (Docker/S2I) and optimize images for performance and security
Deploy and operate services on OpenShift (deployments, routes, services, config/secrets, operators)
Build CI/CD using Tekton and manage GitOps flows via Argo CD
Implement observability: logs, metrics, alerts (Prometheus, Grafana, Loki/EFK)
Automate tasks using Bash, PowerShell, Python, oc CLI, Helm/Kustomize
Apply DevSecOps practices: image & dependency scanning (Trivy, Clair, Snyk), RBAC, secure coding
Tune JVM and troubleshoot performance issues in containerized workloads
Requirements:
Strong Java & Spring Boot experience
Practical experience with OpenShift and containerization
CI/CD knowledge (Tekton, Maven/Gradle, GitOps/Argo CD)
Familiarity with observability tools and cloud‑native troubleshooting
Understanding of DevSecOps and automation scripting
Nice to have:
Java Certifications: Oracle Certified Professional (OCP) – Java SE 11 or 17 / Oracle Certified Associate (OCA) – Java SE
Cloud‑Native & Container Certifications: Red Hat OpenShift Developer (DO288) / Red Hat Certified Specialist in OpenShift administration (EX280) / Kubernetes certifications: CKA / CKAD / CKS
Offer:
Private medical care
Co-financing for the sports card
Constant support of dedicated consultant
Employee referral program
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