Lead DevOps Engineer: Kubernetes, Cloud & GitOps

Sigma Software

Województwo mazowieckie

On-site

PLN 180,000 - 240,000

Full time

13 days ago

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Job summary

Sigma Software in Poland is seeking a Senior/Lead DevOps Engineer to own technical decisions, lead platform delivery, and guide complex Kubernetes-based environments. You will shape cloud infrastructure, security hardening, and CI/CD automation for enterprise government platforms.

You will collaborate with Customers and stakeholders, mentor engineers, and drive GitOps practices across large-scale deployments.

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.

Responsibilities

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 IaC 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.