Referral Network Engineer

Apply Job Type Full-time Description NexGen Data Systems is seeking a Referral Network Engineer to provide advanced network engineering support with focus on complex troubleshooting, security management, change control, and technical documentation across DHA network infrastructure serving 137 MTFs and 500+ GSUs. The scope of this project is to provide LAN/WLAN network sustainment and operations services to the MHS MTFs and related activities, including DHA headquarters and training locations, inside the continental United States. This includes functions such as network performance measurement and monitoring, assistance with network design and development, network measurement. It also includes customer service in the form of trouble tracking and troubleshooting, at the Tier 2 and Tier 3 level, for escalated trouble tickets and maintenance and sparing support. Roles & Responsibilities: Resolve complex LAN/WLAN/WAN technical issues using advanced diagnostic tools. Configure and maintain network firewalls, VPN devices, and IDS/IPS systems. Lead change management processes and conduct 24-hour change assessments. Develop and maintain enterprise network standards and documentation (coordinate with NetMOD). Perform advanced troubleshooting at all OSI model layers using SolarWinds, ARMIS, and Ansible. Support network security operations and vulnerability remediation (IAVA/CVE response). Conduct network performance analysis using MIB, MRTG, and monitoring tools. Create SOPs, technical guides, and process documentation. Mentor Network Engineer Associates and Network Specialists. Support system integration activities and coordinate with application teams. Participate in technical working groups and provide enhancement recommendations. Respond to after-hours emergencies with escalation to Senior Engineers as needed. Other Duties: Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice. Requirements Desired/Required Skills: Active Department of Defense Secret level security clearance required. DoD Approved 8570 / 8140 OS and Cybersecurity certifications required. REQUIRED: Cisco CCNA or equivalent (BCNE for Brocade, etc.) Desired: Zero Trust Architecture training/certification Bachelor's degree in Computer Science and 5 years’ OR Technical/Vocational certification and 8 years’ experience. 6-9 years’ relevant technical experience required. Proficient in TCP/IP, HTTP/HTTPS, SMTP, SNMP, DNS, DHCP, routing protocols Strong Cisco IOS configuration and troubleshooting skills Experience with 802.1d/q/w, 802.3, 802.11 wireless, 802.3u/z standards Hands-on with SolarWinds Orion, ARMIS, Ansible automation tools Network security: firewall configuration, VPN setup, IDS management OTDR, cable testers, network sniffers, and diagnostic utilities Ethernet, Fast Ethernet, Gigabit Ethernet, FDDI, ATM technologies Windows OS, Active Directory, UNIX/Linux in routed/switched environments ServiceNow ticketing and change management workflows Understanding of Zero Trust Architecture concepts About the Company: NexGen Data Systems is an emerging technologies focused company providing expert systems and network engineering solutions to the Department of Defense. NexGen Data Systems promotes a culture of knowledge and career advancement through continued learning, keeping our team current on the latest advances in systems and networking, and enabling our team to provide the best available solutions to our clients. Benefits: Company covers 100% of premiums for the employee’s medical, dental, and vision insurance and subsidizes premiums for spouse and dependents. Company provides short and long term disability plans. 401(k) match up to 10% of the employee’s salary contributions to 401(K) plan. Comprehensive training and development program. 11 paid holidays and paid time off (PTO) accrual level starts at 15 days annually. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status. NOTE: US Citizens and those authorized to work in the US are encouraged to apply. In order to be qualified for this position, you must be able to obtain and maintain a United States Department of Defense (DoD) security clearance. We are unable to sponsor Visas at this time. NexGen Data Systems provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, gender, sexual orientation, national origin, age, disability, marital status, amnesty, or status as a covered veteran in accordance with applicable federal, state and local laws.