Description
The role supports the transition from a legacy Linux-hosted Atlassian suite, including Jira, Jira Service Management, and Confluence, to a containerised open-source ecosystem of Zammad, OpenProject, and XWiki deployed on Red Hat OpenShift.
Responsibilities
•Deploy scalable, resilient Zammad, OpenProject, and XWiki instances across OpenShift clusters
•Develop custom frontend integration forms and automate backend data mappings using n8n workflows and API endpoints to replace legacy JSM intake
•Build and manage secure GitLab CI/CD pipelines for application updates, security patches, database migrations, and multi-environment promotions
•Configure Dynatrace OneAgent, monitor system health, analyze logs, and tune systems
•Participate in shift coverage and mandatory on-call rotation to ensure production reliability
•Troubleshoot Ruby on Rails workers, Java/Tomcat engines, Redis queues, and Elasticsearch/Solr re-indexing
•Collaborate across cross-functional developer squads
•Handle end-user application support, API form integrations, and microservices management in OpenShift
Requirements
•Bachelor's or Master's degree in Computer Science, IT, or a related field
•Minimum 5 years as a Cloud/DevOps Engineer across the full DevOps lifecycle
•Experience with Groovy scripting (ScriptRunner), Java development (Atlassian SDK, Hooks, OSGi bundles), and the Atlassian suite
•Experience with Zammad forms development and Ruby/API customization, OpenProject, and XWiki
•Experience deploying, tuning, and maintaining Zammad, OpenProject, and XWiki; building custom Zammad forms using HTML, JavaScript, and REST APIs
•Linux administration (RedHat/Debian), OpenShift/Kubernetes, and Helm charts
•PostgreSQL/MySQL and ETL scripting with Python, Bash, or Go
•Experience with OpenShift administration, including Pods, deployment configs, routes, network policies, and PVCs
•Experience with enterprise API Gateways (Kong/Gravitee/Tyk), n8n workflows, routes, webhooks, rate limiting, and JWT/OAuth2 token validation
•Experience with Terraform, Ansible, GitLab CI, and ArgoCD
•Experience with Dynatrace APM, custom metrics, log analysis, and bottleneck diagnosis
•Strong troubleshooting under pressure and root-cause analysis (RCA)
•EU citizenship is mandatory
•Fluent English
Nice to have
•Red Hat OpenShift or cloud-native certifications
•An additional European language
Conditions
•Contract B2B
•Contract rate: 540 Euros per day
•Mandatory shifts between 07:00 and 20:00 CET: early 07:00–16:00 or late 11:00–20:00
•Mandatory 7-day on-call rotation, including weekends
•On-call special rate of 150–200% depending on the day
•290 Euro per day bonus for the week on call
•Remote work, up to 6 years
