Senior Infrastructure Engineer

About the role

Hack The Box is looking for a Senior Infrastructure Engineer to design, operate and evolve the compute, storage and container platforms that power its global services across data centers in the US, EU, Singapore and Australia.

Key responsibilities

• Operate and improve VMware vSphere clusters, NSX networking and Ceph storage across multiple sites.
• Deploy, upgrade and troubleshoot Kubernetes clusters on bare‑metal and virtualised infrastructure.
• Develop and maintain infrastructure‑as‑code using Ansible and Terraform.
• Monitor health and performance with Prometheus and Grafana, and participate in on‑call rotations.
• Support hardware lifecycle, data‑center networking and documentation.

Required profile

• 3–5 years of professional experience in infrastructure, systems or platform engineering.
• Strong Linux (Debian) administration skills and solid experience with VMware vSphere and NSX.
• Hands‑on experience with Ceph storage and Kubernetes operations.
• Proficiency with Ansible, Terraform and monitoring stacks (Prometheus, Grafana).

Required skills

• VMware vSphere
• VMware NSX
• Kubernetes
• Ceph (NVMEoF / RBD)
• Linux (Debian)
• Ansible
• Terraform
• Prometheus
• Grafana
• Golang (optional but mentioned)

What we offer

• 25 days of annual leave, paid parental leave, home‑office allowance.
• Relocation bonus, tax reduction and temporary accommodation for moves to Athens.
• Training budget, conference participation and access to Hack The Box labs.
• Flexible working hours and remote‑first work mode.