DevOps Engineer (Mid/Senior)

Quick Facts

• Role: Hands-on DevOps Engineer (Mid/Senior)

• Work model: Small infrastructure team, paid on-call rotation

• Responsibility: Ownership of production telemetry platform operations and improvements

Description

You will help keep a 24/7 production telemetry platform running across multiple production Kubernetes clusters and the full supporting stack (bare metal, Proxmox, networking/VPN, databases, and monitoring). The role emphasizes autonomy: find the root cause, fix it, verify in production, and document outcomes. You will own end-to-end incident response and continuously improve observability, CI/CD, GitOps, and operational automation.

Responsibilities

• Run and evolve Kubernetes clusters (upgrades, scaling, networking, security)

• Resolve incidents across the full stack (network, JVM services, Kafka, MariaDB, Cassandra)

• Maintain useful observability (dashboards and alerts)

• Automate operational toil (if it happens twice, automate it)

• Maintain CI/CD and GitOps (Jenkins, ArgoCD)

• Patch and mitigate vulnerabilities across the fleet

• Participate in on-call and incident response

• Document work in tickets, runbooks, and post-mortems

• Propose improvements backed by data and deliver agreed changes

Requirements

• Production Kubernetes experience

• Strong networking fundamentals (TCP/IP, DNS, routing, NAT, load balancing) and VPN/site-to-site troubleshooting

• Linux administration experience in production (RHEL/Rocky or Debian/Ubuntu)

• Observability skills to correlate logs, metrics, and traces to identify root causes

• Infrastructure as Code experience (Ansible at minimum; Terraform or Pulumi a plus)

• CI/CD and GitOps experience (Jenkins, ArgoCD, Helm)

• Ability to participate in paid on-call and handle incidents independently

• Clear written and spoken communication in Polish and English

Benefits

• Paid on-call

• Training budget and in-house trainings

• Private healthcare and sport subscription

• Company phone

• Office perks (free coffee, bike parking, no dress code)