Site Reliability Engineer

About the role

XTIUM is looking for a Site Reliability Engineer to join its global team. The role covers infrastructure and OS management, security and compliance, automation, application and web server management, container orchestration, monitoring and incident handling.

Key responsibilities

• Manage and maintain Linux systems (Rocky Linux, CentOS, RHEL) in production and staging, perform kernel patching, security updates and system hardening, and troubleshoot OS-level issues
• Support Windows Server environments where applicable
• Run security scans and vulnerability assessments (Nessus, Qualys, OpenVAS), run SAST/DAST scans in CI/CD, configure LDAP authentication and WAF settings, and ensure compliance with security policies and regulations
• Write Ansible playbooks, manage GitHub Enterprise repositories and CI/CD workflows (GitHub Actions preferred), and write automation scripts in Python, Shell or Go
• Configure Apache and Nginx, tune performance, handle SSL/TLS issues and load balancing
• Deploy and scale applications on Kubernetes clusters (EKS, AKS or on-prem), build Docker images, monitor clusters and set up auto-scaling
• Set up monitoring (Prometheus, Grafana, Datadog or ELK), define SLIs, SLOs and error budgets, run blameless post-mortems and take part in on-call rotations

Required profile

• 8+ years in SRE, DevOps or Systems Engineering roles
• Expert knowledge of Rocky Linux, CentOS, RHEL (6+ years) and Windows Server
• Experience with Terraform or other IaC tools
• Familiarity with service mesh (Istio/Linkerd) and CNI plugins (Calico/Cilium) or similar
• Understanding of zero-trust networking and SSO integrations
• Certifications such as RHCE, CKA or CISSP are a plus
• Strong communication and documentation skills, ability to mentor junior engineers and interview candidates, calm under pressure during incidents

Required skills

• Ansible, Python/Shell scripting, GitHub Enterprise and GitHub Actions
• Docker and Kubernetes
• Apache, Nginx, Prometheus, Grafana, ELK or Datadog/New Relic
• SAST/DAST tools (SonarQube, Snyk, Checkmarx)