POSITION SUMMARY: The IT Network Administrator administers, secures, monitors, and optimizes Dominium's network and related infrastructure across corporate and branch office locations. This position supports routing, switching, firewalls, SD-WAN, cloud networking, servers, and connectivity services while ensuring infrastructure availability, performance, security, and compliance. The IT Network Administrator performs advanced troubleshooting, manages patching and vulnerability response, develops automation to improve operational efficiency, and serves as an escalation resource for technical support staff. This position also partners with internal stakeholders to design, implement, document, and support infrastructure solutions that meet business and operational needs.
ESSENTIAL FUNCTIONS:- Administers, maintains, and supports enterprise network infrastructure, including LAN, WAN, Wi-Fi, VPN, VoIP, and related connectivity services across corporate and branch office environments.
- Configures and maintains routing, switching, and SD-WAN infrastructure, including VLANs, subnetting, dynamic routing protocols, network segmentation, redundancy, performance optimization, and failover.
- Administers firewall policies, rules, NAT/PAT, IPSec VPN configurations, and centralized firewall management platforms to maintain secure and reliable network connectivity.
- Supports cloud and hybrid networking infrastructure, including Azure virtual networks, ExpressRoute, VPN gateways, Azure Virtual Desktop environments, and connectivity between on-premises and cloud resources.
- Monitors network health, availability, capacity, and performance using network monitoring and performance management tools; proactively identifies issues and implements corrective improvements.
- Performs advanced troubleshooting and serves as an escalation resource for complex network, server, security, performance, availability, and infrastructure-related issues.
- Supports network and infrastructure security technologies, including endpoint protection, managed detection and response, identity and access management, DNS security, and related security platforms.
- Identifies and responds to vulnerabilities, common vulnerabilities and exposures (CVEs), malware, and other security threats affecting network and infrastructure systems.
- Manages patches, firmware updates, and other system updates for network devices, servers, and related infrastructure to maintain security compliance, stability, and performance.
- Develops and maintains scripts and automation tools to streamline network configuration, monitoring, reporting, and other recurring operational activities.
- Collaborates with stakeholders to define technical requirements, evaluate solutions, assess change impacts, and design and implement approved network and infrastructure changes.
- Maintains documentation for system configurations, infrastructure changes, troubleshooting procedures, operational standards, security controls, and disaster recovery processes; participates in business continuity and disaster recovery planning and testing.
- Performs other duties and special projects as assigned.
QUALIFICATIONS: (Knowledge, Skills, Abilities, Education, Training and Experience.)- Bachelor's degree in information technology, computer science, or a related field, or an equivalent combination of education and relevant experience.
- Minimum four (4) years of progressive information technology experience in network administration, infrastructure support, server administration, and security operations.
- Experience administering enterprise network and infrastructure services, including DNS, DHCP, VPN, LAN, WAN, Wi-Fi, and VoIP.
- Experience with routing, switching, and network segmentation technologies, including VLANs, subnetting, OSPF, BGP, and EIGRP.
- Experience configuring and administering firewalls, NAT/PAT, IPSec VPNs, patching, vulnerability response, identity and access management, and related network security controls.
- Experience using network monitoring and performance management tools to assess network health, availability, capacity, and performance.
- Experience with Cisco and Meraki network equipment, Panorama, Microsoft Defender for Endpoint, Red Canary Managed Detection and Response, Okta, Microsoft Entra ID, Active Directory, VMware, Cisco Umbrella, Microsoft 365, and backup and recovery platforms preferred.
- Experience with Microsoft Azure networking, SD-WAN, and automation or scripting tools such as PowerShell and Python preferred.
- Knowledge of the National Institute of Standards and Technology Cybersecurity Framework or other applicable security and compliance standards preferred.
- Strong analytical and problem-solving skills with the ability to evaluate complex technical issues and implement effective solutions.
- Effective communication, organization, collaboration, and customer service skills, including the ability to manage competing priorities, work independently, and communicate technical information to individuals with varying levels of technical knowledge.
- Ability to adapt to and quickly learn new technologies, systems, and processes while maintaining high standards for system reliability, security, and documentation.
We offer a competitive salary, an incentive bonus program, training and development programs, career growth and community volunteer and outreach programs. We also provide a comprehensive benefits package for eligible employees, including Basic Life and AD&D; Employee, Spouse and Child Supplemental Life and AD&D; and Short and Long-Term Disability insurance. We also offer Medical, Dental and Vision coverage, with optional Health Savings Accounts, as well as Medical and Dependent Care Flexible Spending Accounts. We offer Voluntary Benefits (Accident, Critical Illness, Whole Life) and an Employee Assistance Program. Additionally, you have access to a 401(K) plan, Health and Financial Wellness Programs, Paid Time Off including Paid Holidays and Floating Holidays, Paid Parental Leave, Education Reimbursement, Employee Recognition and the Dominium Employee Emergency Fund.
