Senior/Lead DevOps Engineer

Sigma Software

Warsaw, Masovian Voivodeship, Poland, Remote Remote Full-time 17 days ago
Workplace
Remote
Location
Warsaw, Masovian Voivodeship, Poland
Who can apply
Remote for people based in Poland

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About the role

Job Description

* 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

Qualifications

* 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

Additional Information

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

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