Senior Infrastructure Engineer
At XTB · Warsaw
Salary: PLN 19,500–25,000 a month
- DevOps and infrastructure
- Full-time
- Senior
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Where you can work from
Open to Poland
“Warsaw”
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- Posted
- 21 October 2026
- First seen by us
- 22 October 2026
- Last checked
- 24 hours ago
Job description
From XTB’s job post, as they wrote it.
Responsibilities
Administering and optimizing VMware virtualization environments (vSphere / vCenter): cluster lifecycle, resource management, performance tuning, and troubleshooting. Maintaining and supporting production database environments (PostgreSQL, MongoDB) Managing enterprise storage infrastructure (SAN / block & file storage) — capacity planning, performance diagnostics, and array maintenance. Administering and hardening Linux servers (Ubuntu/Debian) across production and staging environments. Overseeing enterprise backup and recovery solutions (Commvault) — designing retention policies, automation, and leading regular disaster recovery tests. Automating operational workflows and standardizing infrastructure using Ansible, Bash, Python, and Git (IaC mindset). Supporting BCP/DR initiatives Participating in a structured on-call rotation to guarantee high availability of mission-critical systems. Collaborating with cross-functional platform, security, and development teams.
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Requirements
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).
Nice to Have
Experience in high-availability, low-latency environments (e.g., fintech, trading, telecommunications). Familiarity with Terraform, Ansible AWX, and GitLab CI/CD pipelines. Experience with hyper-converged infrastructure (HCI, e.g., Dell VxRail). Awareness of regulatory and security standards (e.g., NIS2, ISO 27001, GDPR). Industry certifications: VMware (VCP), Red Hat (RHCSA/RHCE), or storage/backup platforms.
What We Offer
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.
Benefits
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.
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