Senior System Administrator

JOB SUMMARY

The Senior System Engineer is responsible for designing, operating, and continuously improving the organization’s IT infrastructure and system platforms. This role plays a critical part in ensuring the stability, security, and scalability of on-premises and virtualized environments, while supporting day-to-day operations and leading technical improvements in line with the organization’s infrastructure roadmap.

The ideal candidate brings strong hands-on experience across virtualization (VMware with future HCI migration), Windows and Linux servers, enterprise storage, backup and recovery (Veeam), middleware platforms, and database systems. In addition to operational excellence, the Senior System Engineer is expected to mentor junior team members, improve standards, and contribute to long-term infrastructure planning.

RESPONSIBILITIES

• Manage and maintain enterprise infrastructure including VMware, servers, storage, and network systems, ensuring high availability, performance, and capacity planning
• Support HCI initiatives including assessment, design, and migration activities
• Install, configure, and maintain Windows Server and Linux environments, including Active Directory, group policies, and security configurations
• Perform system patching, upgrades, and routine maintenance following operational and security best practices
• Manage IT asset inventory, licenses, and maintain SOPs and operational documentation
• Operate and maintain backup and recovery using Veeam, including monitoring, restore testing, and supporting DR/BCP and failover activities
• Provide infrastructure support for IIS, SQL Server, and PostgreSQL, including installation, troubleshooting, performance tuning, and high availability setup
• Handle incidents, service requests, and support root cause analysis, problem management, and change/release processes
• Apply security hardening, patching, and support audit and compliance requirements
• Act as a technical escalation point, mentor team members, and collaborate with cross-functional teams and vendors

JOB SPECIFICATION

• Bachelor’s degree in Computer Science, Information Technology, Computer Engineering, or a related field (or equivalent experience).
• 5+ years of hands-on experience in system engineering or senior system administration roles.
• Strong experience with VMware or other virtualization, and enterprise server environments.
• Practical experience administering Windows Server and Linux systems in production environments.
• Experience with enterprise storage, backup solutions (preferably Veeam), and disaster recovery operations.
• Exposure to middleware (IIS) and database platforms such as SQL Server and PostgreSQL.

Required Skills/Abilities:

• Virtualization: VMware (vSphere, ESXi); exposure to HCI platforms is a strong advantage.
• Operating Systems: Windows Server, Linux (various distributions).
• Backup & DR: Veeam Backup & Replication, restore and DR testing procedures.
• Middleware: IIS, application services hosting concepts.
• Databases: Infrastructure support for SQL Server and PostgreSQL (preferred).
• Scripting/Automation: PowerShell, Bash, or equivalent (preferred).