Senior System Administrator

Industry: NGO

Our client a well-established NGO in Cambodia is looking for a Senior System Administrator to manage maintain and improve its IT infrastructure including networks servers cloud systems and cybersecurity. The successful candidate will ensure system reliability security and performance while providing technical support to end users.

• Manage maintain and monitor network infrastructure including servers switches routers LAN VPN and firewalls.
• Administer Windows and Linux servers VMware infrastructure Active Directory and cloud-based systems.
• Monitor daily backups databases virtual machines and disaster recovery procedures.
• Maintain and improve system security through vulnerability assessments penetration testing and risk mitigation.
• Manage cloud infrastructure including VPS Docker and related services.
• Maintain IT services such as email Google Workspace file servers ERP HR systems PBX and CCTV.
• Support IT automation and system integration to improve operational efficiency.
• Provide technical support to end users and prepare technical documentation.
• Coordinate technical maintenance with IT technicians and the IT Assets Administrator.
• Ensure system availability data protection and compliance with organizational policies.

• Bachelors degree in Computer Science Networking Telecommunications or a related field.
• At least 3 years of relevant experience in system administration networking or IT infrastructure.
• Strong knowledge of network administration server management and cybersecurity.
• Good understanding of risk assessment system monitoring and disaster recovery.
• Good command of spoken and written English.
• Strong teamwork problem-solving communication and time-management skills.
• Ability to work under pressure adapt to changes and deliver quality results.
• Commitment to the NGOs mission core values and child protection policies.

• Networking: Cisco UniFi FortiGate MikroTik routing VPN and firewall management.
• Systems: Windows Server Linux Active Directory VMware and MySQL Server.
• Backup and security: Veeam Backup endpoint protection vulnerability assessment and penetration testing.
• Cloud and infrastructure: Google Cloud AWS DigitalOcean Docker and VPS management.
• Productivity and services: Google Workspace email systems PBX and file servers.