DTRA--Network Engineer Architect SME-Network Engineer Architect

Defense Engineering Inc. (DEi) team is seeking a Network Engineer /Architect Subject Matter Expert (SME) to support our long-term contract located at the Defense Threat Reduction Agency (DTRA) at Fort Belvoir, VA.

The I3TS program provides enterprise-wide IT support to enable DTRA’s Information Management & Technology Directorate (ITD) to consolidate, modernize, and continuously innovate the delivery of IT services and mission capabilities to DTRA’s internal and external mission partners operating in CONUS and OCONUS locations.

DEi is a leading small IT business leader in the Washington D.C. Metropolitan Area. DEi combines experience and innovative ideas to provide our clients with the right solution with the right people at the right time. We are a proven IT services and solutions provider for full-life-lifecycle engineering of network, storage, cyber security, communication and policy compliance needs. We focus on delivering IT solutions to meet complex technological and business challenges within mission-critical enterprises.

In addition to the traditional full-time employee benefits package (health, dental, vision, 401K, life insurance, short-term and long-term disability plans, vacation time and holidays, DEi also offers Education and professional Certification Reimbursement, and Gym Membership reimbursement benefits.

Job Category: Information Technology – Network Engineer / Architect SME

Location: Fort Belvoir, VA US

Top Secret/SCI

US Citizenship

• 8570 Baseline Active IAT Level II (Minimum of one)
  • Security+ CE
  • CySA+
  • GICSP
  • GSEC
  • SSCP

• CCNA or network certification which shall meet or exceed a CCNA (comparable vender certification accepted upon review.

• CCNP or equivalent

Education / Experience: Minimum of a bachelor’s degree in science, technology, engineering and math (preferred) with 12-15 years’ experience or Master’s degree with 10-13 years of experience (additional years of directly applicable experience may be accepted in lieu of a degree).

Schedule: Full-time

Potential for Teleworking: Possibility of limited remote work.

Travel: None

Shift: Day Job

The Network Engineer/Architect SME supports operation and maintenance of current and modernized capabilities for DTRA. This role will be responsible for technical requirement definitions, implementations plans, as well as diagnosing and troubleshooting outages, monitoring networks, infrastructure and systems, and proving proactive mitigation strategies.

• This position is on-site at Fort Belvoir, MD with the possibility of limited remote work.
• Primary Responsibilities:
• Execute Tier 2 & 3 network operations functions to ensure network stability & DoD security guidance compliance.
• Conduct real-time monitoring of global enterprise networks using DoD-approved tools (e.g., Solar Winds, Cisco Identity Services Engine, vendor-related GUIs).
• Develop and enforce operational procedures, incident response workflows, and escalation protocols.
• Act as the senior technical point of contact for major outages, network events, or cybersecurity incidents.
• Ensure all network changes follow Configuration Management and DoD Change Advisory Board procedures.
• Design and implement secure network solutions to consolidate connectivity services under an enterprise service.
• Collect, investigate, and identify network optimization strategies and techniques to meet capacity and performance standards.
• Identify legacy service paths (i.e. dataflow, firewall rulesets, and ACLs) and develop strategies and designs for the to-be enterprise service capability to meet requirements while balancing security, sustainability, and maintainability.
• Ensure network compliance with DoD Security Technical Implementation Guidance.
• Minimum Requirements:
• Active Top Secret / SCI clearance
• Active DoD IAT Level II (e.g. Security+) certification
• Active CCNA certification.

The applicant will have:

• STEM Bachelor’s degree with minimum 10-12 years of applicable Network Engineer experience. (Additional years of experience accepted in lieu of degree)
• Must have broad…