Network Administrator
Radiology Associates of North Texas, P.A. · Fort Worth, TX · 2 mo ago
On-siteInformation TechnologyContract
Key Responsibilities
- Configure, maintain, and support LAN, WAN, wireless, and VPN environments in a primarily Cisco-based infrastructure
- Perform day-to-day network operations, including monitoring, troubleshooting, and incident response
- Diagnose and resolve network performance issues across switching, routing, and connectivity layers
- Implement network changes in accordance with ITIL-based change management processes
- Support and maintain network security configurations, including firewalls, ACLs, and VPN tunnels
- Assist with network upgrades, hardware replacements, and system implementations
- Maintain accurate network documentation, diagrams, and operational procedures
- Support cloud and hybrid connectivity, including VPNs and basic cloud networking components (Azure preferred)
- Assist in maintaining and supporting VoIP infrastructure
- Collaborate with vendors and service providers for issue resolution and service delivery
- Participate in on-call rotation or after-hours support as needed
Required Education, Experience, And Qualifications
- Education: Bachelor’s degree in Computer Science, Information Technology, or a related field (or equivalent practical experience)
- Certifications: Cisco CCNA (strongly preferred), Progress toward CCNP or equivalent is a plus
- Experience: 3 – 5+ years of experience in network administration or network engineering roles, Hands-on experience supporting Cisco routing and switching environments, Experience working in a production enterprise environment
Skills And Technical Expertise
- Strong working knowledge of switching concepts (VLANs, STP, trunking, EtherChannel, QoS)
- Practical experience with routing protocols such as OSPF and EIGRP (BGP exposure is a plus)
- Experience configuring and supporting network security technologies (ACLs, NAT/PAT, IPSec VPNs)
- Familiarity with Cisco Catalyst environments (Nexus exposure is plus)
- Understanding of core network services such as DNS and DHCP
- Familiarity with cloud and hybrid networking concepts, particularly in Microsoft Azure
- Experience with network monitoring and troubleshooting tools
- Familiarity with RADIUS / AAA for authentication is a plus
- Exposure to VoIP systems (e.g., RingCentral) is a plus
Soft Skills & Work Style
- Strong troubleshooting mindset with attention to detail
- Ability to manage multiple tasks and priorities in a fast-paced environment
- Willingness to learn and grow into more advanced networking responsibilities
- Strong communication skills and ability to work collaboratively across teams