Leidos is seeking a Junior Cybersecurity Engineer to collaborate with the Information System Security Manager (ISSM) managing risks related to the use of processing storing or transmitting information to reduce or eliminate impact to confidentiality integrity or availability of information and information systems.
Duties will include:
- Ensuring appropriate operational security posture is maintained.
- Conducting scheduled weekly monthly quarterly and annual Continuous Monitoring and auditing tasks and reporting.
- Configure implement troubleshoot and maintain all security platforms and their associated software such as firewalls switches routers and enterprise devices.
- Administer configure and maintain the Tenable Security Center.
- Review ACAS results and remediate appropriately.
- Ensuring software hardware and firmware comply with appropriate security configuration guidelines (e.g. Security Technical Implementation Guides (STIGs)/Security Requirement Guides (SRGs).
- Developing artifacts and supporting evidence to satisfy all applicable RMF Controls.
- Prepare and maintain security documentation including System Security Plans (SSPs) Security Assessment Reports and Plans of Action and Milestones (POA&Ms).
Required Qualifications:
- Bachelors Degree and 1 year of experience or a Masters Degree. Additional experience maybe considered in lieu of a degree.
- US Citizen with the ability to obtain and maintain at least a Secret clearance.
- Must possess current DOD 8140 certification or obtain a certification within 6 months of hire
- Strong foundation in networking common ports and protocols and traffic flow. Knowledge of the OSI model defense-in-depth security principles and common security elements for effective threat detection analysis and mitigation.
- Committed to continuous learning and self-improvement in the cybersecurity domain as evidenced by ongoing pursuit of certifications active participation in industry forums and dedication to staying ahead of emerging threats and technologies.
- Excellent problem-solving skills including the ability to collaborate effectively with cross-functional teams to address complex security challenges in real-world scenarios. This includes the ability to communicate technical information clearly and concisely build consensus and drive solutions to completion.
- Reliable and flexible with a demonstrated willingness to work assigned shifts to support operational requirements and team objectives.
Preferred Qualifications:
- US Citizen with an active Secret clearance or higher
- ACAS or experience with performing vulnerability scans
- Applying STIG/SRG to Windows/Linux operating systems
- RMF/ATO compliance
Come break things (in a good way). Then build them smarter.
Were the tech company everyone calls when things get weird. We dont wear capes (theyre a safety hazard) but we do solve high-stakes problems with code caffeine and a healthy disregard for how its always been done.
Original Posting:
October 3 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:
Pay Range $55250.00 - $99875.00
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.
Required Experience:
Junior IC