Data Center IT/Network Administrator

GTA • Tamuning, GU

74d

About The Position

GTA Data Centers is dedicated to fostering a culture centered on security, reliability, and operational efficiency. We are currently seeking a highly skilled and solutions-oriented Data Center IT/Network Administrator to support and enhance the performance of our mission-critical infrastructure. This key role encompasses a broad scope of responsibilities, including application support, network and systems administration, security oversight, backup and disaster recovery planning, and regulatory compliance. The successful candidate will demonstrate a deep understanding of IT and networking principles, a proactive approach to problem-solving, and a strong commitment to automation, process documentation, and adherence to security best practices. As a core member of our operations team, this individual will play a pivotal role in maintaining the integrity, availability, and security of our data center environment, ensuring business continuity and service excellence.

Requirements

• Bachelor's degree in Computer Science, Information Technology, a related field, OR equivalent combination of education, technical certifications, and work experience.
• 3-5 years of progressive experience in IT systems and network administration, specifically within a data center or similar critical environment.
• Hands-on experience configuring and managing enterprise-grade network equipment (e.g., Cisco IOS/NX-OS, Juniper Junos) and firewalls (e.g., Palo Alto, Fortinet, Cisco ASA).
• Proven experience administering recent Windows Server versions, common Linux distributions, and VMware vSphere or Hyper-V.
• Experience using network and system monitoring tools (e.g., SolarWinds, Nagios, Zabbix, PRTG, Datadog).
• Experience with Azure AD / Entra ID is required. Broader experience with IaaS/PaaS (Azure/AWS) is a plus.

Nice To Haves

• Relevant certifications are advantageous (e.g., CompTIA Network+/Security+, CCNA/CCNP, MCSA/MCSE equivalents, VCP-DCV, Azure Administrator).
• Knowledge of BDR strategies, technologies, and testing methodologies.

Responsibilities

• Configure, install, and maintain data center network infrastructure, including routers, switches, firewalls, and load balancers.
• Manage and troubleshoot network protocols and services: TCP/IP, DNS, DHCP, VLANs, OSPF, VPNs.
• Plan and execute network upgrades, firmware updates, and patching while minimizing operational impact.
• Monitor network performance, availability, and security; respond to alerts and incidents promptly.
• Manage physical layer connectivity, including structured cabling (copper/fiber), patching, and troubleshooting.
• Maintain accurate network diagrams and documentation.
• Install, configure, manage, and troubleshoot physical and virtual servers (Windows and Linux environments).
• Administer virtualization platforms (e.g., VMware vSphere, Microsoft Hyper-V, Proxmox).
• Manage identity and access control using Azure Active Directory / Entra ID and traditional Active Directory Domain Services. Implement and enforce Group Policies.
• Perform routine OS patching, firmware upgrades, and hardware maintenance on server infrastructure.
• Monitor system health, performance, and capacity; proactively address potential issues.
• Develop, implement, and maintain backup and disaster recovery plans and procedures.
• Develop scripts in Windows and Linux environments to automate routine tasks, monitoring, and reporting.
• Create and automate Key Performance Indicators (KPIs) for infrastructure health and performance analysis.
• Implement, manage, and enforce security policies, procedures, and controls across network and system infrastructure.
• Configure and manage firewalls, Intrusion Detection/Prevention Systems (IDPS), and other security appliances.
• Identify, assess, and respond to security threats and vulnerabilities; participate in incident response activities.
• Ensure ongoing compliance with relevant standards (e.g., ISO 27001), conduct internal audits, and support external audits.
• Manage system and network hardening procedures.
• Develop and refine Standard Operating Procedures (SOPs).

Benefits

• Equal Opportunity Employer dedicated to building an inclusive and diverse workforce.
• Commitment to creating long term impactful change throughout the company and community.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Industry: Telecommunications
• Education Level: Bachelor's degree
• Number of Employees: 251-500 employees