Senior Cyber Security Engineer

L3Harris Technologies

. Apply Systems Security Engineering methods, practices, and technologies to architect, design, develop, evaluate, and integrate secure systems and networks .

Posted 11/6/2026full-timeUnited StatesSenior💰 $92,500 - $197,500 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in Systems Security Engineering, including the application of security methods throughout the system lifecycle, and proficiency in Risk Management Framework (RMF) processes. Capable of developing and implementing security policies, conducting vulnerability assessments, and ensuring compliance with relevant standards and regulations.

Highest-signal resume keywords

Systems Security EngineeringRisk Management Framework (RMF)Vulnerability Assessment ToolsCertification of Cryptographic High Assurance DevicesCollateral Secret Security Clearance

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Systems Security EngineeringRisk Management Framework (RMF)Vulnerability AnalysisEncryption TechnologySecurity Management MethodsCyber Defense ToolsNIST 800-53High Assurance ProductsA&A Package ProcessingCOTS, GOTS, and FOSS Approval

Soft Skills

CollaborationLeadershipMentoringCommunicationRequirements Development

Tools & Technologies

ACASSCCDoD 8510JSTIGICD-503CNSSI 1253

Certifications & Qualifications

Certification of Cryptographic High Assurance DevicesCollateral Secret Security Clearance

Industry Keywords

Embedded SystemsCritical Program Information (CPI)Program Protection PlansCybersecurity StrategiesVerification and Validation

Tech Stack

Tools & technologies

Cyber Security

About the role

Key responsibilities & impact

Apply Systems Security Engineering methods, practices, and technologies to architect, design, develop, evaluate, and integrate secure systems and networks
Define and implement security protection needs, concerns, and requirements with Government customers throughout the system lifecycle
Work with systems developers and commercial product vendors to design and evaluate secure systems, networks, and database products
Use encryption technology, vulnerability analysis, and security management methods
Integrate security methods into a cohesive system security perimeter and environment
Develop policies and procedures to monitor and maintain secure environments
Prepare Certification and Accreditation documentation under RMF and derivative processes, including DoD 8510, JSTIG, ICD-503, and CNSSI 1253
Represent program security needs, concerns, and requirements at customer meetings
Support security engineering activities including estimates, requirements development, design, testing, configuration management, and information-system maintenance
Provide DoD software selection and approval processes for COTS, GOTS, and FOSS
Collaborate with customers, internal program teams, and leadership to address program needs
Support evaluation, qualification, testing, and delivery of security architecture improvements, obsolescence replacements, and vulnerability response projects

Requirements

What you’ll need

Bachelor’s Degree and minimum 6 years of prior relevant experience, or Graduate Degree and minimum 4 years of prior related experience, or minimum 10 years of prior related experience in lieu of a degree
Strong knowledge of the job area and specialty within the discipline
Certification of Cryptographic High Assurance Devices
Experience with High Assurance products, IASRD and SERD requirements
Experience configuring and using cyber defense and vulnerability assessment tools such as ACAS and SCC
Knowledge of assessing security and privacy controls in embedded systems using NIST 800-53
Experience with Risk Management Framework (RMF) accreditation and authorization processes, including RMF steps 1–4 and BoE package development
Experience with A&A package processing
Experience with RMF accreditation of Platform IT (PIT) systems
Minimum of Collateral Secret security clearance required
Preferred: experience developing and certifying High Assurance Devices on embedded systems
Preferred: experience with RMF A&A on embedded systems
Preferred: experience developing and implementing System Security Engineering for CPI protection throughout the System Development Lifecycle
Preferred: assessing systems for Critical Program Information (CPI)
Preferred: DoD 5200.39, NIST 800-160, attack/countermeasure analysis, Verification and Validation, and Program Protection Plans
Preferred: drafting PPPs, Cybersecurity Strategies, Security Classification Guides, and System Security Engineering Plans
Preferred: leading small product development teams and mentoring engineers

Benefits

Comp & perks

9/80 schedule: Employees work 9 out of every 14 days, totaling 80 hours, with every other Friday off
Health insurance
Disability insurance
401(k) match
Flexible spending accounts
Employee Assistance Program (EAP)
Education assistance
Parental leave
Paid time off
Company-paid holidays