Looking for an opportunity to make an impact?
At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business.
Your greatest work is ahead!
Leidos’ Defense Senor Research and Analysis Division is seeking a Cybersecurity Engineer-Product Development to work in our Leidos office in Huntsville, AL. This is an exciting opportunity to use your experience to support development, integration, testing, production, delivery, and sustainment of complex defense systems and software products.
.
Are you ready to make an impact? Share your resume with us today!
Primary Responsibilities
The ideal candidate will work closely with Systems Engineering, Software Engineering, Hardware Engineering, DevSecOps/IT, Software Assurance, Configuration Management, Test & Evaluation, Manufacturing, Program Management, and Government cybersecurity stakeholders. The Cybersecurity Engineer is responsible for helping shepherd the system from initial requirements and architecture through design, implementation, integration, cybersecurity assessment, RMF activities when applicable, qualification, production readiness, fielding, and sustainment.
· Identify applicable cybersecurity requirements derived from DoD policies, NIST publications, DFARS clauses, CMMC requirements, RMF controls, Security Technical Implementation Guides (STIGs), program protection requirements, Supply Chain Risk Management (SCRM), and customer-specific security requirements.
· Assist Systems Engineering in establishing system security boundaries, trust boundaries, information flows, external interfaces, and cybersecurity assumptions and constraints.
· Participate in system and software architecture development and design reviews.
· Evaluate system architecture for cybersecurity weaknesses and recommend practical risk-reduction measures.
· Provide cybersecurity engineering guidance for authentication, authorization, least privilege, encryption, key management, logging, auditing, secure communications, interface protection, network segmentation, and data protection.
· Perform or coordinate vulnerability assessments using tools such as ACAS/Nessus, SCAP/STIG assessment tools, SAST/SCA platforms, network analysis tools, and other approved cybersecurity assessment capabilities.
· Develop remediation recommendations in coordination with engineering teams.
· Support preparation and maintenance of RMF artifacts, including system diagrams, data-flow diagrams, hardware/software inventories, ports/protocols/services information, security assessment results, vulnerability records, and Plans of Action and Milestones (POA&Ms).
· Support IATT, ATO, Assess-Only, or other authorization/assessment approaches as applicable to the program.
· Ensure authorization documentation accurately represents the actual engineered and production system rather than treating RMF documentation as a separate compliance activity.
Basic Qualifications
Bachelor’s degree in Cybersecurity, Computer Science, Computer Engineering, Software Engineering, Systems Engineering, Electrical Engineering, Information Technology, or a related technical discipline with 8 years of cybersecurity engineering experience. In lieu of a degree a combination of education, military experience, and directly applicable engineering experience plus 11 years of may be considered.
Experience supporting cybersecurity for software-intensive or defense systems from development through test, production, and fielding is strongly preferred.
· Strong understanding of secure system and software engineering principles.
· Working knowledge of NIST SP 800-53, NIST SP 800-37 RMF, NIST SP 800-171, NIST SP 800-218 Secure Software Development Framework (SSDF), and applicable DoD cybersecurity requirements.
· Understanding of DoD RMF processes and security control implementation.
· Experience developing cybersecurity requirements and verification criteria.
· Ability to translate cybersecurity requirements into language understandable to engineering, manufacturing, test, and program personnel.
· Experience with cybersecurity risk assessment and vulnerability management.
· Knowledge of secure software architecture and secure coding concepts.
· Understanding of Linux security and system hardening.
· Experience with vulnerability assessment technologies such as ACAS, Nessus, SCAP/STIG tools, or equivalent platforms.
· Familiarity with SAST, DAST, SCA, dependency scanning, secrets scanning, and software supply-chain security.
· Security+ or CISSP certification
· Must be a US citizen and the ability to obtain and maintain an active secret clearance.
· Must be a resident of Huntsville, AL or willing to relocate to the Huntsville, AL area.
Preferred Qualifications
- Strong communication and documentation skills
- Ability to work in a highly-technical, team-oriented environment that includes customers and co-workers
- Strong desire to learn and constantly improve
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 10, 2026For 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.
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.
Skills Required
- Bachelor's degree in Cybersecurity, Computer Science, Computer Engineering, Software Engineering, Systems Engineering, Electrical Engineering, Information Technology, or a related technical discipline
- 8 years of cybersecurity engineering experience
- In lieu of a degree, a combination of education, military experience, and directly applicable engineering experience plus 11 years may be considered
- Experience supporting cybersecurity for software-intensive or defense systems from development through test, production, and fielding
- Strong understanding of secure system and software engineering principles
- Working knowledge of NIST SP 800-53, NIST SP 800-37 RMF, NIST SP 800-171, NIST SP 800-218 SSDF, and applicable DoD cybersecurity requirements
- Understanding of DoD RMF processes and security control implementation
- Experience developing cybersecurity requirements and verification criteria
- Ability to translate cybersecurity requirements for engineering, manufacturing, test, and program personnel
- Experience with cybersecurity risk assessment and vulnerability management
- Knowledge of secure software architecture and secure coding concepts
- Understanding of Linux security and system hardening
- Experience with ACAS, Nessus, SCAP/STIG tools, or equivalent vulnerability assessment platforms
- Familiarity with SAST, DAST, SCA, dependency scanning, secrets scanning, and software supply-chain security
- Security+ or CISSP certification
- Must be a U.S. citizen
- Ability to obtain and maintain an active Secret clearance
- Must reside in Huntsville, Alabama, or be willing to relocate
- Strong communication and documentation skills
- Ability to work in a highly technical, team-oriented environment
- Strong desire to learn and continuously improve
Leidos Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Leidos and has not been reviewed or approved by Leidos.
-
Healthcare Strength — Healthcare coverage is described as comprehensive, with multiple plan options, low office-visit copays in some plans, and access to mental health and wellness support tools. The availability of HSA/FSA options and employer contributions is positioned as a meaningful part of the total package.
-
Retirement Support — Retirement benefits are framed as a strong component of total rewards, highlighted by a 401(k) match and immediate vesting in the standard package. The Employee Stock Purchase Plan is also presented as an additional long-term wealth-building feature.
-
Wellbeing & Lifestyle Benefits — Wellbeing and lifestyle supports extend beyond core insurance, including wellness programs, fitness-related stipends, and assistance resources. Work flexibility and related perks are also included as part of the broader rewards experience.
Leidos Insights
What We Do
We Are Leidos For 50 years we have been tackling some of the biggest problems that face our nation and our world. OUR MISSION Through our culture of innovation and history of performance, we develop deep customer trust built on integrity and create enduring solutions that improve our world. Leidos is a science and technology solutions leader working to address some of the world’s toughest challenges in the defense, intelligence, homeland security, civil, and healthcare markets. The company’s 43,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Va., Leidos reported annual revenues of approximately $11.09 billion for the fiscal year ended January 3, 2020. Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®. Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the newly launched Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos. Your most important work is ahead.
