Demo

Network Security Engineer

DNI (Delaware Nation Industries)
Alexandria, VA Full Time
POSTED ON 9/21/2026
AVAILABLE BEFORE 10/20/2026

The Bureau of Diplomatic Security (DS) is the security and law enforcement arm of the U.S.

Department of State (the Department). DS is a world leader in international investigations, threat

analysis, cyber security, counterterrorism, security technology, and protection of people,

property, and information. Its primary mission is to provide a safe and secure environment for

the conduct of U.S. foreign policy. The Office of Security Technology (ST) supports the DS

mission through the application and use of appropriate technical security countermeasures.


Description

  • Evaluates new technologies and possible security vulnerabilities associated with them.
  • Assist in the planning of policies and guidelines involving state-of-the-art equipment and their possible implementation in State Department resources.
  • Responsible for testing the vulnerabilities associated with the software applications and hardware for networks.
  • Works with a laboratory focused local area network. Designs and deploys network and video infrastructure cabling.
  • Must be able to analyze computer and network architectures to optimize network performance, security, and laboratory testing functionality.
  • Must have excellent oral and writing communication skills in order to document for senior Department of State managers the testing procedures, results, and recommendations for implementing tested technologies securely.
  • Must be able to troubleshoot a variety of hardware and software issues in a timely manner while under tight time and resource constraints.
  • Must be able to research, test, review, and report on emergent technologies.

Requirements

  • Must have a current Interim Top-Secret clearance with the ability to obtain a U.S. Government final TOP SECRET Personnel Security Clearance and be able to qualify for SCI access.
  • Must be eligible for and able to obtain and maintain required Security Clearance/access approvals.
  • Must have five years of experience and a master’s degree in computer science or engineering, or at least ten years of equivalent work experience and a bachelor’s degree in computer science or engineering, or equivalent work experience.
  • Must have experience in the following: configuring, designing, and maintaining Window servers; designing, configuring, and testing personal computer and network software components in a laboratory environment; programming software and command line interfaces; and setting up patch management software and backup management solutions.
  • Must be fluent in VMWare, C, C , Objective C, Java, communication protocol implementation, Wi-Fi, RFID, Bluetooth, TCP-IP, VoIP, and Linux/Windows/OSX scripting.
  • Must have experience with commercial and government best practices in securing computers, networks, and mobile devices. Must know how to use all major MS Windows applications.
  • Must have detailed understanding and experience in Android/iOS/Blackberry operating systems.
  • Must understand system architecture, application design, and device management and deployment.
  • Must have knowledge of active directory application mode, lightweight directory access protocol, and online certificate status protocol.
  • Must have knowledge of bandwidth utilization.

Benefits

  • Covers 100% of employee benefit premiums, including Medical (PPO or HDHP Option), Vision, Dental
  • Matching 401K
  • Short- and Long-Term Disability
  • Pet Insurance
  • Professional Development/Education Reimbursement
  • Parking and Transit Benefits for NY, NJ, ATL, and DC Metro areas


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.

Salary : $140,000 - $145,000

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