System Administrator

We are looking for a capable System Administrator to manage, secure, and operate our enterprise Windows and Linux server environments. This role ensures reliability, security, and performance across core infrastructure, virtualization, storage, backups, and observability.

• Provision, configure, and operate Windows Server & Linux hosts, including golden images, baselines, and CIS hardening.
• Execute patch management and vulnerability remediation; maintain health of EDR, monitoring, and backup agents at scale.
• Administer Active Directory/Group Policy and integrate SSO (LDAP/SAML/OIDC) for servers and applications.
• Manage virtualization platforms: clusters, templates, snapshots, performance, and capacity planning.
• Operate storage & filesystems (RAID/LVM, NFS/SMB, iSCSI) and enforce quotas and permissions.
• Ensure reliable backup & restore operations (Veeam/Bacula/Commvault); perform periodic restore tests with documented evidence.
• Maintain certificates (TLS/PKI), time/NTP, syslog/Winlog forwarding, and OS logging to SIEM.
• Implement and monitor server observability (metrics/logs/alerts) and publish availability/utilization reports.
• Support application teams with environment setup, service configuration, and deployment/change activities via CAB.
• Conduct DR/BCP drills for server layers aligned with RTO/RPO; maintain up-to-date runbooks and CMDB records.
• Automate operational tasks using PowerShell/Bash (and Ansible where applicable); maintain HLD/LLD and SOP documentation.

• 24+ years of experience as a System Administrator in an enterprise environment.
• Strong Windows Server and Linux administration skills (services, permissions, events/logs).
• Hands-on expertise with Active Directory, Group Policy, and SSO protocols (LDAP/SAML/OIDC).
• Experience with patching, CIS hardening, and vulnerability fix coordination via ITSM.
• Practical experience with virtualization and storage systems.
• Proven backup/restore operations with periodic test restore evidence.
• Scripting proficiency in PowerShell and/or Bash; strong CLI and remote administration skills.
• Experience with server monitoring and logging tools (Zabbix/PRTG/Prometheus; syslog/Winlogbeat).
• Familiar with ITSM processes (Incident/Problem/Change, CAB) and able to produce audit-ready documentation.

• Exposure to container platforms (Docker, Kubernetes node ops) and GitOps/CI/CD fundamentals.
• IaC/automation experience (Ansible, Terraform basics).
• Web server knowledge (Nginx/Apache/IIS), certificate automation (ACME/Let's Encrypt), mail relay basics.
• Cloud & hybrid networking experience (S2S VPN to AWS/Azure/GCP); use of bastion/SSM/Session Manager.
• Security enhancements: BitLocker/LUKS, FIM, secrets management (Vault), endpoint/EDR baseline awareness.
• Experience in regulated environments and ISO 27001:2022 compliance documentation.
• Performance tuning (CPU/memory/I/O), capacity forecasting, and license/cost hygiene.