Senior/Lead DevOps Engineer

Sigma Software · Remote, Warsaw, Masovian Voivodeship, pl

Spotted 1h agoMid-Senior LevelFull-time

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  • Design, implement, and maintain enterprise-grade Kubernetes platforms and cloud infrastructure
  • Lead infrastructure delivery activities from the discovery phase through production rollout
  • Make architectural and technical platform decisions aligned with Customer requirements
  • Automate infrastructure provisioning and configuration management using Infrastructure as Code practices
  • Implement and maintain CI/CD pipelines and GitOps workflows
  • Configure and support secure cluster operations, secrets management, and platform hardening
  • Collaborate directly with Customers, vendors, and external stakeholders during technical workshops and solution discussions
  • Analyze existing infrastructure environments and identify optimization opportunities
  • Prepare technical proposals, implementation plans, estimates, and delivery roadmaps
  • Troubleshoot production environments and perform root cause analysis
  • Support compliance, security, and operational readiness requirements for government environments
  • Mentor engineers and contribute to technical leadership within the team
  • 5+ years of commercial experience as a DevOps Engineer in enterprise environments
  • Deep expertise in Kubernetes administration, networking, and security
  • Experience with Infrastructure as Code tools such as Terraform
  • Hands-on experience with AWS and/or Azure cloud platforms
  • Experience implementing GitOps practices using ArgoCD or similar tools
  • Strong Linux administration and troubleshooting skills
  • Experience with CI/CD automation and software delivery pipelines
  • Knowledge of secrets management solutions such as OpenBAO or HashiCorp Vault
  • Experience with identity and access management solutions such as Keycloak
  • Understanding of infrastructure security, CIS benchmarks, and platform hardening
  • Experience working with production enterprise infrastructure environments
  • Ability to work independently and make technical decisions
  • Experience communicating directly with Customers and stakeholders
  • Strong analytical and problem-solving skills
  • Upper-Intermediate or higher level of English

WILL BE A PLUS

  • Experience with OKD or OpenShift administration
  • Experience with Ceph storage solutions
  • Knowledge of Helm packaging and customization
  • Experience with air-gapped environments and restricted infrastructure
  • Experience with vSphere administration
  • Experience delivering solutions to external hosting providers
  • Background in government, eGov, or registry-based systems
  • Understanding of compliance and operational requirements in public sector environments

PERSONAL PROFILE

  • Strong ownership mindset and ability to lead technical initiatives
  • Ability to work effectively in ambiguous and evolving environments
  • Excellent communication and stakeholder management skills
  • Structured and proactive approach to problem-solving
  • Ability to prioritize tasks and manage multiple responsibilities
  • Strong collaboration skills within distributed teams
  • Leadership mindset with focus on delivery and quality
Interested in this role?Continue on Sigma Software's careers page.
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