Your expertise:
Strong Kubernetes experience (3+ years): cluster lifecycle, troubleshooting, networking, storage, and workload management
Infrastructure as Code proficiency (Terraform, 2+ years): writing, maintaining, and evolving Terraform modules and state management
Configuration management experience (Puppet, Ansible, or similar, 2+ years)
Advanced Linux / Unix administration (4+ years)
Virtualization experience (Proxmox / KVM / QEMU): provisioning, tuning, and maintaining VM clusters
Monitoring and observability experience (Prometheus, VictoriaMetrics, Grafana, or similar stack)
CI / CD skills (Jenkins, GitLab CI, or similar)
Scripting skills (Bash, Python)
Understanding of network fundamentals (DNS, HTTP / S, TCP / UDP, NAT, firewall rules)
Experience with Git-based workflows and documentation practices (Confluence, wikis)
Strong troubleshooting and root-cause analysis skills
Be able to work as part of the team
Language: English B1+ (Intermediate+)
Will definitely be a plus:
Experience with Kubespray deployments and cluster upgrades
Hands-on experience with VictoriaMetrics or Thanos for long-term metrics storage
Experience with OCI (Oracle Cloud Infrastructure)
Knowledge of Puppet / OpenVox ecosystem (Hiera, r10k, PuppetDB)
Experience with Proxmox PVE cluster management and Ceph storage
Familiarity with Jitsi or similar real-time communication platforms
Networking skills (VLAN, VXLAN, BGP, SDN concepts)
Infrastructure security implementation skills
Experience with Scrum / Kanban processes
Knowledge of a programming language (Go, Python, Ruby)
What’s in it for you?
Opportunity to deal with top-notch technologies and approaches in a world-leader product company with millions of customers
Opportunity to make a difference for online privacy, freedom of speech, and net neutrality
Decent market rate compensation depending on experience and skills
Developed corporate culture: no micromanagement, culture based on principles of truth, trust, and transparency
“You build it, you own it” mentality in most contexts
Support of personal and professional development
coverage of costs of external trainings, conferences, professional literature
support of experienced colleagues
in-house events and trainings
regular knowledge sharing in teams
English classes and speaking clubs
Life-balance support
truly flexible schedule, no time-tracking at all
25 working days of vacation
5 days of paid sick leave per month (if necessary) without providing a medical certificate
generous maternity / paternity leave program
Professionally strong environment, friendly and open atmosphere, ability to influence the product development and recognition for it
You will be involved into:
Design, deploy, and maintain self-hosted Kubernetes clusters using Kubespray
Develop and evolve Terraform modules for infrastructure provisioning across Proxmox, OCI, and internal platforms
Manage and improve VictoriaMetrics monitoring clusters and Grafana dashboards
Maintain and extend Puppet / OpenVox configuration management for the infrastructure fleet
Administer Proxmox PVE clusters: virtual machine lifecycle, storage, networking, and performance tuning
Build and maintain CI / CD pipelines for infrastructure and application delivery
Troubleshoot complex infrastructure issues across virtualization, container orchestration, and networking layers
Write and maintain technical documentation and runbooks
Automate routine operational tasks and improve infrastructure reliability
Participate actively in team processes, share knowledge, and contribute to engineering culture
What the candidate will do at the start:
After onboarding the candidate will be engaged in the following activities:
Get familiar with the existing Terraform modules and contribute improvements to Proxmox and VictoriaMetrics provisioning pipelines
Join the Kubernetes stream: participate in Kubespray-based cluster upgrades and day-2 operations
Automate recurri
