Cybersecurity Engineer

Leidos; Fairfax (VA); On-site; USD 126,100 - 227,950; Full time

Benefits offered by this job

Competitive compensation

Health and Wellness programs

Income Protection

Paid Leave

Retirement

Job summary

A leading defense contractor in Virginia is seeking a Cybersecurity Engineer to enhance IT systems security for government contracts. The role involves monitoring security status, investigating incidents, and applying advanced cybersecurity knowledge. Candidates must possess an active TS/SCI with poly, a bachelor's degree in Cybersecurity or a related field, and a minimum of 12 years of experience. Strong skills in network infrastructure and various protocols are essential. This opportunity promises competitive compensation and benefits.

Qualifications

• Active TS/SCI with poly required.
• Minimum of 12 years of relevant experience.
• Knowledge in operating systems like Windows and Linux.

Responsibilities

• Monitor the security status for all IT systems.
• Investigate computer and information security incidents.
• Apply advanced knowledge on technical assignments.

Skills

IT systems security

Incident investigation

Network infrastructure design

Vulnerability management

Customer service

Education

Bachelor of Science degree in Cybersecurity or related field

Tools

TCP

UDP

DNS

DHCP

Windows

Cisco IOS

RHEL

Job description

Description

General program information and/or position overview:

The Mission Solutions Operation at Leidos is seeking a Cybersecurity Engineer to support a government contract in the National Capital Region (NCR). The ideal candidate will be able to identify, assess, and address IT systems security issues. Additionally, the Cybersecurity Engineer will coordinate with the IT team and customer management.

Primary Responsibilities:

• Actively monitor the security status for all IT systems and resolve all security issues quickly.
• Investigate computer and information security incidents.
• Applies advanced knowledge of concepts, processes, practices, and procedures on technical assignments.
• Other duties as assigned

Basic Qualifications:

• Must have an active TS/SCI with poly
• Requires minimum of 12 years of relevant experience and Bachelor of Science degree in Cybersecurity or related field. 16+ years of work experience will be considered in lieu of degree.
• Demonstrated experience supporting of Plan of Action and Milestones (POAMs) and vulnerability management
• Experience with network infrastructure design, routed data protocols, and hardware platforms.
• Experience with technologies such as DHCP, DNS, SSH, TCP, and UDP.
• Demonstrated experience with security device architecture, engineering, and installation/management.
• Knowledge of WAN and LAN, routing, switching, and firewalls.
• Knowledge in Operating Systems such as Windows, Cisco IOS, and RHEL.

Preferred Qualifications:

• Demonstrated experience applying efficient task management and ability to adjust to changing requirements
• Demonstrated experience working as part of a team
• Demonstrated customer service and interpersonal skills

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting

November 18, 2025

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

$126,100.00 - $227,950.00

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

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits.

Securing Your Data

Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at [e-mail].

If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission.

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.