COMSEC Engineer

Leidos Holding$92K — $166K *
Aerospace & Defense
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree with 8-12 years experience or Master's degree with 6-10 years experience.
  • Active TS/SCI government security clearance.
  • Knowledge of current crypto devices/methods and COMSEC principles.
  • Ability to implement processes and keep administrative documentation.
  • Basic understanding of networking devices like routers and switches.
  • Basic understanding of information security practices.
  • Strong collaboration and customer service skills.

Responsibilities

  • Ensure compliance with COMSEC policies and procedures.
  • Configure and install crypto hardware, troubleshoot, and provide resolutions.
  • Maintain functionality of crypto devices to minimize downtime.
  • Protect and maintain keying materials, updating them as required.
  • Document and track devices and materials across accounts and systems.
  • Be accountable for devices and materials during audits.
  • Provide COMSEC Custodian training to teammates.

Benefits

  • Work in a fast-paced, collaborative team environment.
  • Opportunities for professional development and training.
  • Engagement in critical national security work.
  • Flexibility and adaptability in job functions.
  • Potential for involvement in innovative solutions to technical challenges.
Full Job Description
The Department of Homeland Security (DHS) is looking for a COMSEC Custodian to provide ongoing support for DHS Homeland Enterprise Information Technology Secure Services & Support (HEITS) to ensure the continued operations, maintenance, and evolution of the Homeland Secure Data Network (HSDN) and the Classified Local Area Network (C-LAN).

As a COMSEC Custodian on the HEITS program, your duties will include:
  • Adhering to and ensuring user compliance with the customer's COMSEC policies and procedures.
  • Configuring and installing crypto hardware, troubleshooting issues as they arise, and providing quick resolutions to minimize user downtime.
  • Maintaining the health and functionality of crypto devices in operation, minimizing downtime during maintenance periods.
  • Protecting and maintaining keying and other COMSEC materials, updating keying material according to customer-designated timeframes.
  • Documenting and tracking all devices and materials across multiple accounts and systems.
  • Demonstrating accountability for all devices and materials during yearly audits.
  • Providing COMSEC Custodian training to teammates and stakeholders.
  • Coordinating with customers, teammates, and users to maintain compliance with security standards and deployment schedules.
  • Collaborating with and supporting the customer on technical matters related to the organization's overall mission.


Qualifications for the COMSEC Custodian position include:
  • Bachelor's degree with 8-12 years of relevant experience, or Master's degree with 6-10 years of relevant experience.
  • Active TS/SCI government security clearance.
  • Knowledge of current crypto devices/methods and COMSEC principles and practices.
  • Ability to implement processes and maintain administrative documentation.
  • Basic understanding of network transport devices attached to encryption devices (e.g., routers, switches, firewalls).
  • Basic understanding of information security practices and devices.
  • Strong collaboration and customer service skills.
  • Ability to work in a fast-paced, collaborative team environment.
  • Flexibility and adaptability to changing situations.
  • Self-starter with the ability to work independently and in team environments.


Preferred qualifications for the COMSEC Custodian position include:
  • Experience in network and network security design, including managing the design, installation, and support of LAN/WAN-based networks and security components such as routers, switches, firewalls, and datacenter equipment.
  • Ability to solve complex engineering problems and implement innovative solutions to customer challenges.
  • IT certifications such as A+, CCNA, CCNP, Security+, CISSP, etc.


Original Posting:
July 22, 2026

Pay Range:
Pay Range $92,300.00 - $166,850.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

About Leidos Holding

Leidos Holding Careers

Joining Leidos Holding presents an unparalleled opportunity to advance one's career with a leader in innovation and technology. The company offers a plethora of job opportunities aimed at fostering professional growth and development in a diverse and inclusive environment.

Explore Career Opportunities

Leidos Holding is actively seeking skilled professionals who are passionate about leveraging their expertise to drive innovation and leadership in their fields. With a variety of open positions, Leidos Holding provides a platform for individuals to challenge themselves in a dynamic work environment.

Innovation and Professional Growth

At Leidos Holding, innovation is at the core of everything they do. Employees are encouraged to think creatively and push boundaries. The company supports this drive for innovation through comprehensive professional development and diversity training programs that are designed to enhance skills and foster leadership.

Commitment to Diversity and Inclusion

Leidos Holding is committed to creating a workplace where diversity is not only recognized but celebrated. With a culture that values and promotes diversity, Leidos Holding ensures that all team members have the opportunity to contribute, learn, and grow.

Internship Programs

For those starting their career, Leidos Holding offers internship programs that provide a robust foundation in the industry. Internships are a great way to develop essential skills, gain valuable work experience, and build professional networks.

Benefits and Culture

Employees at Leidos Holding enjoy a range of benefits designed to support their professional and personal lives. The company culture is built on a foundation of respect and integrity, providing a supportive and collaborative environment where every team member is valued.

Join the Team

Leidos Holding is hiring! Explore job opportunities that match your skills and interests. Leidos Holding looks for driven, curious, and innovative individuals to join their team. Positions are available across various disciplines and experience levels.

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Prepare for Your Interview

To prepare for an interview at Leidos Holding, candidates should familiarize themselves with the company's missions and values, update their resumes, and be ready to discuss how their background and skills align with the position they are applying for.

Networking and Career Advancement

Leidos Holding encourages its employees to engage in networking within the company to discover new opportunities for career advancement. The leadership team at Leidos Holding is dedicated to supporting employees in their career paths with ample opportunities for networking and growth.

Explore Leidos Holding Jobs and Careers

Discover the exciting career opportunities at Leidos Holding today. With a commitment to employee growth, innovation, and diversity, Leidos Holding is the perfect place to advance your career. Check out the latest job listings and find your perfect fit at Leidos Holding.

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