Network Administrator
SEMRHI
- Location
- Onsite (Hatiesburg, MS)
- Level
- Mid Level
Posted 4 days ago
About the Role
SEMRHI is a nonprofit healthcare organization providing community-based primary and preventive care across Mississippi. The Network Administrator role involves designing, securing, and managing multi-site LAN/WAN infrastructure to ensure reliable connectivity and HIPAA compliance.
Skills
Network Administration
LAN
WAN
Firewalls
Routers
Switches
Wireless Access Points
VLAN
VPN
SD-WAN
DNS
DHCP
IPAM
Cybersecurity
Network Security
Troubleshooting
Full job details
Job DetailsJob Location: Administration - Hatiesburg, MS 39401Job Summary:
The Network Administrator is responsible for the design, implementation, management, and security of the organization's network infrastructure. This position ensures reliable and secure network connectivity across all locations, supports multi-site WAN/LAN environments, and plays a key role in infrastructure planning and network security initiatives.
Job Responsibilities:
Manage and maintain LAN, WAN, and wireless network infrastructure across all organizational locations
Configure, monitor, and troubleshoot routers, switches, firewalls, and wireless access points
Administer network segmentation including VLANs, inter-VLAN routing, and guest network isolation
Monitor network performance and availability using network monitoring tools and respond to alerts
Manage DNS, DHCP, and IP address management (IPAM) across the environment
Maintain and troubleshoot site-to-site and remote access VPN connections
Support and administer SD-WAN and cloud-based networking solutions as applicable
Implement and maintain firewall policies, access control lists, and network security rules
Cybersecurity awareness training
Monitor network traffic for anomalies, intrusion attempts, and policy violations
Assist with vulnerability assessments and remediation of network-level findings
Enforce network security best practices in alignment with organizational and regulatory requirements including HIPAA
Manage IDS/IPS systems and respond to network security events
Participate in the design and implementation of new network infrastructure for facility expansions and new site deployments
Evaluate and recommend networking hardware, software, and services
Coordinate with ISPs and vendors for circuit provisioning, troubleshooting, and escalations
Maintain accurate and up-to-date network diagrams, documentation, and asset inventory
Support structured cabling, rack management, and data center infrastructure as needed
Serve as a subject matter expert and escalation point for network-related issues
Mentor junior IT staff on networking concepts and best practices
Collaborate with systems, security, and application teams on cross-functional projects
Communicate network status, incidents, and planned changes to IT leadership
Performs other duties as assigned.
Completes all required trainings prior to deadline
QualificationsJob Requirements:
3-5 years of network administration experience in a multi-site enterprise environment
Strong hands-on experience with managed switches, firewalls, and enterprise wireless platforms
Proficiency with network protocols including TCP/IP, BGP, OSPF, VLAN, STP, and QoS
Experience with UniFi, Cisco, Meraki, or similar enterprise networking platforms
Familiarity with network monitoring tools such as PRTG, SolarWinds, or similar
Knowledge of HIPAA security requirements as they relate to network infrastructure preferred
CompTIA Network+, CCNA, or equivalent certification preferred; CCNP a plus
Experience supporting healthcare or multi-site organizations preferred
Must be available for on-call response to critical network incidents.
Physical and Other Requirements:
Must be able to pass a criminal background check, drug screen, and TB skin test
Ability to work in equipment rooms and data center environments required.
May require travel between locations for on-site network support and project work.
Must continuously listen, visualize, and have dexterity and eye-hand coordination
Ability for simple grasping and speed work
Must frequently sit, squat, reach, use both right and left forearm rotation, walk and climb stairs
Must occasionally kneel, twist, have the ability to grasp firmly, lift and carry, push and pull in excess of 30 lbs.