Senior Cyber Security Engineer

Leidos Holding$107K — $195K *
Aerospace & Defense
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in IT, Computer Science, Engineering, or related field with 10+ years of experience, or 14 years of experience without a degree.
  • U.S. citizen with active Top Secret SCI security clearance.
  • DoD Manual 8140.03 certification (Security+, CASP, CISSP).
  • Proven experience in designing and implementing technical security controls and vulnerability remediation.
  • Strong working knowledge of Risk Management Framework (RMF).
  • Experience in security principles across all development phases from requirements to operational acceptance.
  • Experience with information system security assessments and RMF activities.

Responsibilities

  • Provide Information System Security Engineering (ISSE) support to ensure secure communication and data transfer networks.
  • Deliver cyber expertise for new installations and technology refresh efforts, including architecture design and integration.
  • Ensure cybersecurity measures protect data at the SECRET level across sites, both CONUS and OCONUS.
  • Design and maintain secure communications capabilities for existing and new sites with thorough documentation and training.
  • Implement technical security controls and advise Information System Security Managers and Program Managers on best practices.
  • Generate Security Assessment Reports and maintain Plans of Action and Milestones for compliance and remediation.
  • Conduct vulnerability scans to ensure adherence to standards required for Authority to Operate (ATO).

Benefits

  • Access to advanced IT and engineering expertise.
  • Support for both CONUS and OCONUS projects, enriching professional experience.
  • Opportunities to work on sensitive military projects with a focus on cybersecurity innovation.
  • Engagement with cross-functional teams, enhancing collaboration skills.
Full Job Description

The Defense Sector at Leidos currently has an opening for a Senior Cyber Security Engineer to work at Robins AFB GA. This is an exciting opportunity to use your experience helping the Special Projects program and Air Force mission. In this mission we provide IT and engineering expertise along with Information Assurance Services to customers CONUS and OCONUS in support of network and information security systems for multiple closed user groups and are developing and building a network fiber system. Our program entails maintaining and enhancing the information systems and networks and performing system enhancements, software installation, integration, testing, and deployment services.

Primary Responsibilities:

You will provide ISSE support to the program and a secure communications and data transfer network that consists of a series of secure networks that are already fielded and in sustainment. You will also be responsible for providing cyber expertise for new installs and tech refreshes that require engineering and security architecture design, integration and install, test, and deploy to operations. You will be ensuring cybersecurity is applied to our secure communications operational data transfer between various CONUS and OCONUS sites with security adequate to protect information at the SECRET level; designing, installing, administering, and maintaining secure communications capabilities between existing and new sites; and, providing Operations and Maintenance (O&M) documentation and training. Designing and implementing technical security controls, identify and remediate vulnerabilities, and advice to Information System Security Managers (ISSMs), and Program Managers. Provide cybersecurity expertise and knowledge to implement the System Security Plan. Create the Security Assessment Report. Create Plan of Action and Milestones. Implement Plans of Actions and Milestones. Ensure required vulnerability scans meet the standards required to obtain and maintain an ATO from the Authorizing Official.

Basic Qualifications:

  • A bachelors degree in IT, Computer Science, Engineering, or other technical discipline and 10 or more years of prior relevant experience, or 14 years of experience without a degree.
  • Must be a US Citizen and actively possess a Top Secret SCI security clearance.
  • Any one of the following DoD Manual 8140.03 certifications: Security+, CASP, CISSP
  • Experience designing and implementing technical security controls, identify and remediate vulnerabilities.
  • A strong working knowledge of RMF.
  • Experience in applying security principles to all states of system development from requirements development through operational acceptance.
  • Experience in conducting information systems security assessments, evaluating IA and Cybersecurity controls, and conducting and supporting RMF activities.
  • Experiencewith Operational Air Force or Space Force systems.
  • Experiencewith ACAS, Xacta and / or eMASS.
  • Experience and/or certifications associated with RMF, ICD 503, NIST SP800-53
  • Experience in current authorization practices, particularly within the DoD
  • Experience in accreditation of Windows, Linux, Cisco, SQL or Oracle databases, virtualized systems, Red Hat Enterprise License (RHEL) Linux 7, ACAS, Tenable systems.

Preferred Quals:

  • Knowledge of ATOs and required security controls for DoD networks
  • Previous experience working with cyber teams to gain ATOs
  • Experience with Air Force Special programs
  • Experience with DoD systems

DABAOPP1

Original Posting:
September 8, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:
Pay Range $107,900.00 - $195,050.00

The Leidos pay range for this job level is a general guideline onlyand 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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