Tietoevry

Linux System Administrator

Tietoevry

full-time

Posted on:

Location Type: Remote

Location: Ukraine

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Tech Stack

AnsibleGrafanaLinuxOpenShiftPrometheus

About the role

  • Engage with business stakeholders to gather requirements and design solutions that align with engineering standards and support business needs.
  • Design, implement, and manage Red Hat OpenShift clusters in on-premises (physical and virtualised) environments.
  • Take ownership of systems engineering projects related to OpenShift infrastructure.
  • Collaborate with development teams to containerize applications and optimize deployment and release workflows.
  • Build and maintain CI/CD pipelines using OpenShift and associated DevOps tools.
  • Automate operational and deployment tasks using Ansible and other scripting tools.
  • Perform patching and upgrades of OpenShift clusters, ArgoCD, GitLab CI, and related components in compliance with change-management procedures.
  • Design, implement, and maintain backup, disaster recovery, and redundancy strategies.
  • Participate in on-call / standby rotation to support critical platform and infrastructure services and ensure service continuity.
  • Support daily operations including trend analysis, root cause analysis, monitoring, troubleshooting, and resolution of platform issues to ensure high availability and reliability.
  • Implement and enforce security best practices, including RBAC, vulnerability management, and compliance controls.
  • Improve alerting, monitoring, and observability capabilities across OpenShift and related systems.
  • When OpenShift-related workload is limited, perform general system administration activities, including Linux server administration, infrastructure maintenance, and support of data center services as part of the infrastructure team.
  • Produce and maintain up-to-date documentation, including architecture diagrams, operational procedures, and runbooks.
  • Provide knowledge transfer, mentoring, and training to colleagues on OpenShift, GitLab, and related infrastructure technologies.

Requirements

  • Bachelor’s degree in Engineering or Computer Science and at least four (4) years of relevant experience; or equivalent professional certifications (including Red Hat OpenShift training) with at least five (5) years of experience.
  • Proven experience deploying, operating, and maintaining OpenShift and GitLab CI platforms.
  • Experience in deploying and maintaining OpenShift and GitLab CI platforms
  • Proficiency with Ansible and infrastructure automation practices.
  • Solid experience in Linux system administration within enterprise or datacenter environments.
  • Ability to document architectures, configurations, and standards, and to develop/maintain SOPs and training materials.
  • Fluency in English (spoken and written).
  • Will be an advantage Knowledge of ITIL Service Operations principles.
  • Experience with ArgoCD, monitoring/observability stacks (Prometheus, Grafana, etc.), or disaster recovery tooling (optional but valuable).
Benefits
  • Competitive salary
  • Flexible working hours
  • Professional development budget
  • Home office setup allowance
  • Global team events
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
OpenShiftGitLab CIAnsibleLinux system administrationCI/CD pipelinesdisaster recoverycontainerizationmonitoringtroubleshootingroot cause analysis
Soft Skills
collaborationcommunicationmentoringdocumentationproblem-solvingownershiptrainingorganizational skillsstakeholder engagementservice continuity
Certifications
Bachelor’s degree in EngineeringBachelor’s degree in Computer ScienceRed Hat OpenShift training