Job Description

Job Description

Job Description

Seeking an experienced Network Engineer to support the U.S. Department of the Treasury’s mission-critical classified IT system that supports Treasury’s national security, intelligence, and counter-threat finance missions.

The selected candidate will operate within a secure compartmented environment (SCIF) , ensuring the reliability, security, and performance of Treasury’s classified network infrastructure.

Responsibilities

• Build, configure, and maintain the day-to-day operation of the Treasury Foreign Intelligence Network (TFIN).
• Manage and support Cisco network devices including routers, switches, firewalls, controllers, and WAPs.
• Protect data, software, and hardware by implementing and maintaining DISA STIGs, NIST 800-53, and CNSS 1253-compliant security measures.
• Troubleshoot, diagnose, and resolve complex hardware, software, and connectivity issues across LAN/WAN environments.
• Support disaster recovery and continuity of operations planning and execution.
• Monitor, analyze, and optimize network performance using tools such as SolarWinds and Wireshark.
• Maintain network documentation including block diagrams, Simple Network Diagrams (SND), and Detailed Network Diagrams (DND).
• Assist in developing IATT and ATO packages and ensure ongoing accreditation compliance.
• Conduct research and testing of emerging network technologies to enhance performance and security.
• Participate in customer briefings, design reviews, and after-action reports.

Qualifications

Required:

• Active Top Secret clearance with SCI eligibility (final, favorable adjudication).
• Minimum 5 years of experience supporting network operations in a federal or DoD environment.
• Demonstrated expertise with Cisco network devices and enterprise network architectures.
• Strong understanding of LAN/WAN design, network protocols, VLANs, VPNs, and QoS .
• Experience applying DISA STIGs and NIST security frameworks.
• Proficiency with network monitoring tools (SolarWinds, Wireshark, etc.).
• Strong documentation, communication, and analytical skills.

Desired:

• Bachelor’s degree in Information Technology, Computer Science, or Network Engineering.
• Certifications: CCNP, CCNA, Security+, Network+.
• Familiarity with Citrix, AWS/Azure hybrid environments , or Treasury systems a plus.
• Experience supporting classified or intelligence community networks .

Tenacity Solutions, LLC (Tenacity) is a Service-Disabled Veteran Owned Small Business (SDVOSB) founded by our CEO, Gabriel Brown, CAPT, USN (Ret). Tenacity is an innovative company, leveraging talent, skill, and knowledge with cutting-edge and proven practices to deliver solutions and products that exceed customers’ requirements and surpasses their expectations. Tenacity immediately has become a leading technology and management solutions provider with a mission to advance healthcare services for specialized populations including Veterans and their families. Headquartered in North, Bethesda, Maryland (DMV), our talented resources are located across the United States. We bring diverse talent to design solutions that help customers with their greatest challenges.

Company Description

Tenacity Solutions, LLC (Tenacity) is a Service-Disabled Veteran Owned Small Business (SDVOSB) founded by our CEO, Gabriel Brown, CAPT, USN (Ret). Tenacity is an innovative company, leveraging talent, skill, and knowledge with cutting-edge and proven practices to deliver solutions and products that exceed customers’ requirements and surpasses their expectations. Tenacity immediately has become a leading technology and management solutions provider with a mission to advance healthcare services for specialized populations including Veterans and their families. Headquartered in North, Bethesda, Maryland (DMV), our talented resources are located across the United States. We bring diverse talent to design solutions that help customers with their greatest challenges.

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