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Sr Network Engineer

DerexTechnologiesInc

Washington, DC, United States permanent

Posted: May 8, 2026

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Quick Summary

Derex Technologies Inc. is seeking a skilled Sr Network Engineer to join their team.

Job Description

Derex Technologies Inc specializes in providing IT consulting, staffing solutions and software services. Globally headquartered in Harrison New Jersey since 1996 Derex delivers the highest quality technology professionals and an array of customized IT talent solutions designed to improve productivity and drive results to global clients throughout North America.

With over two decades of unparalleled experience, Derex provides supports to its clientele, across such industries as Systems Integration, Banking and Finance, Telecommunications, Pharmaceutical and Life Sciences, Energy, Healthcare, Technology, Transportation, and local and federal Government agencies.

Position: Sr Network Engineer (801988)

Interview: Webcam Only

Job: Onsite

Location: Washington, DC 

 

The role involves supporting the replacement, lifecycle management, and upgrade of networking equipment such as switches, routers, firewalls, and related hardware across the agency’s environment. The specialist develops and maintains detailed network documentation, including logical and physical diagrams, system interfaces, rack elevations, cabling records, and equipment inventories for 911 and 311 operations. They also maintain thorough configuration documentation, standard operating procedures, change records, and disaster recovery materials specific to mission‑critical systems. The position monitors network performance, identifies vulnerabilities or bottlenecks, and implements corrective measures to ensure high availability for 24/7 emergency communications. Additionally, the specialist troubleshoots complex network issues affecting 911 operations, performs root‑cause analysis, and restores service rapidly. The role includes managing and supporting two data centers hosting critical 911 applications, ensuring continuous availability, redundancy, and compliance with public‑safety requirements. 

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CONTRACT JOB DESCRIPTION

Responsibilities:

• Knowledge of network analysis related to infrastructure design. 
• May be an expert in security or intrusion detection. 
• Proficient in proprietary network technology. 
• Advanced experience with, but not limited to, routers, firewalls, switches, and servers. 
• Advanced knowledge in network analysis. 
• Advanced problem resolution and project management skills. 
• Designs and implements class wide area networks. 
• Experience with Firewalls, VPN, encryption, intrusion detection and prevention systems, and penetration testing. 
• Knowledge of network vulnerabilities and be able to mitigate and prevent each one. 
• Supporting the replacement, lifecycle management, and upgrade of networking equipment, including core, distribution, and access layer switches; routers; firewalls; and related hardware used across the agency’s network environment 
• Creating, maintaining, and improving detailed network diagrams for all agency systems, including logical network maps, physical connectivity diagrams, and system‑to‑system interfaces used by 911 and 311 operations. 
• Developing and maintaining rack elevation diagrams, equipment inventories, and cabling documentation for data centers, communications rooms, and remote agency sites 
• Preparing and maintaining documentation of network configurations, standard operating procedures, change records, and disaster recovery materials specific to the 911 environment. 
• Monitoring network performance and availability, identifying bottlenecks or vulnerabilities, and implementing corrective actions to ensure the resiliency required for 24/7 emergency communications 
• Troubleshooting complex network issues affecting critical 911 operations, conducting root‑cause analysis, and restoring service quickly while documenting findings 
• Managing and supporting two data centers that host mission‑critical 911 applications, ensuring continuous availability, redundancy, and compliance with public‑safety operational requirements 

Minimum Education/Certification Requirements:

Bachelor’s degree in IT or related field or equivalent experience

 

Regards,

 

Manoj Goud

Derex Technologies INC

Contact : 973-834-5005 Ext 206

All your information will be kept confidential according to EEO guidelines.

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