Senior Infrastructure Engineer

• Administer and optimize VMware virtualization environments (vSphere/vCenter), including cluster lifecycle, resource management, performance tuning, and troubleshooting
• Maintain and support production PostgreSQL and MongoDB database environments
• Manage enterprise SAN, block, and file storage infrastructure, including capacity planning, performance diagnostics, and array maintenance
• Administer and harden Ubuntu/Debian Linux servers across production and staging environments
• Oversee Commvault enterprise backup and recovery solutions, including retention policies, automation, and disaster recovery tests
• Automate operational workflows and standardize infrastructure using Ansible, Bash, Python, and Git with an IaC mindset
• Support BCP/DR initiatives
• Participate in a structured on-call rotation to guarantee high availability of mission-critical systems
• Collaborate with platform, security, and development teams
• Maintain, automate, and scale core on-premises and hybrid infrastructure spanning virtualization, storage, Linux, and database clusters

• 5+ years of hands-on experience in infrastructure engineering (on-premise / data center / hybrid environments)
• Deep technical knowledge of VMware vSphere and vCenter administration and troubleshooting
• Operational experience with database clusters (PostgreSQL, MongoDB) — maintenance, replication, backup/restore, and health monitoring
• Strong practical administration skills in Linux (Debian/Ubuntu) — performance diagnostics, security hardening, and log analysis
• Proven experience with enterprise storage concepts (SAN, zoning, multipathing, performance tuning)
• Practical experience with enterprise backup platforms (Commvault preferred or equivalent)
• Hands-on scripting and automation skills: Ansible, Bash or Python, and version control (Git)
• Solid understanding of high-availability architectures and BCP/DR frameworks
• Readiness to participate in paid on-call rotations and occasional travel to data centers
• Good technical English (spoken and written, min. B2 level)
• Experience in high-availability, low-latency environments is a plus
• Familiarity with Terraform, Ansible AWX, and GitLab CI/CD pipelines is a plus
• Experience with hyper-converged infrastructure is a plus
• Awareness of NIS2, ISO 27001, and GDPR is a plus
• VMware, Red Hat, storage, or backup certifications are a plus

• Real influence on the development of the company and the product
• Work in an experienced team that is happy to share its knowledge
• A clear vision of development thanks to regular feedback and clear career paths
• Regular team-building meetings
• A training budget for courses and conferences that interest you
• An extra day off on your birthday
• An extra day off for parents
• Equipment tailored to your needs
• Private medical care and group insurance
• Access to an e-learning platform for learning English and a benefits platform
• Access to a wellbeing platform and the opportunity to take advantage of workshops and private therapy sessions
• Remote work, from the office in Warsaw or from a coworking space in your city
• Paid on-call rotations