Network and Systems Administrator
Summary
Maintains the availability, performance, and security of network, server, and physical security infrastructure (CCTV, access control) for a 24/7 contact center serving US clients under HITRUST, HIPAA, PCI DSS, and SOC 2 compliance. Daily work spans LAN/WAN, VLANs, VPNs, firewalls, Windows Server/AD, Microsoft 365, virtualization, backups, and VoIP.
About the role
The Network and Systems Administrator maintains the availability, performance, and security of the company network, server infrastructure, and physical security systems, including CCTV and access control. This role supports a 24/7 contact center operation serving US clients and operates within a compliance environment aligned with HITRUST, HIPAA, PCI DSS, and SOC 2.
Key responsibilities
Administer, monitor, and maintain LAN, WAN, wireless, and VPN infrastructure, including switches, routers, firewalls, and access points.
Configure and maintain VLANs, security zones, firewall policies, and site-to-site and remote-access VPNs.
Administer Windows Server, Active Directory, Group Policy, DNS, DHCP, and Microsoft 365 services.
Manage virtualization hosts, storage, and server hardware, including patching and firmware updates.
Perform and test backups and support disaster recovery and business continuity procedures.
Monitor system health, capacity, and logs; respond to alerts and resolve incidents within agreed service levels.
Apply security controls, including patch management, access reviews, hardening, and vulnerability remediation.
Support telephony and VoIP network requirements, including QoS and PBX connectivity.
Administer CCTV systems, including NVRs, video management software, camera configuration, recording schedules, and storage retention.
Administer electronic access control systems, including controllers, door locks, badge readers, user enrolment, and access group assignments.
Maintain accurate network diagrams, camera and door location maps, configuration records, and asset inventories.
Follow change management procedures and document changes, incidents, and root-cause findings.
Provide audit evidence and support internal and external compliance assessments.
Provide escalation support to IT Helpdesk and Field Support teams.
What we're looking for
Bachelor's degree in Information Technology, Computer Science, Computer Engineering, or a related field.
At least 2 years of experience in network and systems administration, preferably in a BPO or multi-site environment.
Working knowledge of TCP/IP, routing, switching, VLANs, VPN, DNS, and DHCP.
Hands-on experience with enterprise firewalls; Palo Alto Networks experience is an advantage.
Experience with Windows Server, Active Directory, and Microsoft 365 administration or similar platforms.
Familiarity with virtualization platforms, backup solutions, and monitoring tools.
Experience administering IP CCTV, NVR, or VMS platforms and electronic access control systems is an advantage.
Understanding of information security practices and compliance frameworks.
Strong troubleshooting and analytical skills.
Clear written and verbal communication, including documentation.
Ownership and accountability for assigned systems.
Discretion and integrity in handling video footage, access records, and confidential information.
Ability to work calmly under pressure during incidents.
Willingness to work shifting schedules, weekends, and holidays when required.
Preferred certifications include CCNA, CompTIA Network+, Palo Alto PCNSA or PCNSE, Microsoft Certified: Azure Administrator, CompTIA Security+, or equivalent vendor certifications.