Infrastructure engineer

XIAG Warsaw 2026-10-22

Must-have requirements:



  • Knowledge of TLS/x509 certificates, encryption basics

  • Verbal and written communication skills in English

  • Team collaboration skills

  • Ability and motivation to learn about new technologies and approaches

  • Experience in system administration (Debian, Ubuntu)

  • Solid understanding of Linux systems and network stack

  • Hands-on experience with SCM (git) and configuration management tools (Ansible/SaltStack)

  • Familiarity with distributed systems


Nice to have:



  • Hands-on experience running Kubernetes

  • ClusterEngine: Corosync, Pacemaker

  • Strong understanding of networking protocols and architectures.


What we offer:



  • Simple hiring process

  • B2B or UoP, you can choose any (via our partner CVT services)

  • Stable salary

  • medical insurance and multisport card

  • Participation in external training and conferences (75% covered)

  • 14 days of remote work per year

  • Sick leave paid up to 100% of the salary

  • Supportive and friendly environment

  • Team events and company activities

  • Swiss management: horizontal hierarchy, decisions made by the team

  • No bureaucracy - direct contact with management




,[ **Tech stack we use:**, , - Network storage: DRBD, Ceph, S3, - Virtualization: LXC, KVM, - Backup: Bacula (and derivatives), - CI/CD: GitLab CI/CD, - Containers: Docker, Podman, containerd, - Web stack: Nginx, PHP, Golang, NodeJS, - Orchestration: Kubernetes, - Configuration management tools: SaltStack, Ansible, - VPN: OpenVPN, OpenConnect, - Databases: PostgreSQL, MySQL, MongoDB, ClickHouse, - Queue engines: RabbitMQ, Kafka, - Cache systems: Redis, Memcached, , **What you will do:**, , - Manage and monitor Unix-like systems (primarily Debian/Ubuntu), - Coordinate tasks with developers and other sysadmins, - Work with a professional and experienced sysadmin team, - Maintain our infrastructure across local and remote environments, - Communicate task scope and complexity to stakeholders and managers, - Adopt new technologies and implement automation to improve maintainability of our infrastructure and processes, - Ensure the security and reliability of systems, - Share 24x7 coverage of monitoring alerts in coordinated shifts with the rest of the team] Requirements: Additionally: Sport subscription, Private healthcare, Free coffee, No dress code, In-house trainings.