Senior Systems Security Engineer - Cyber Engineer with Active Secret Clearance

Senior / Principal Systems Security Engineer Cyber EngineerFullerton, CA | Onsite$87.55 $98.80/hr (W2)1st ShiftContract: 6 Months (Possible Extension)US Citizenship & Active Secret Clearance RequiredDonatech Corporation is seeking experienced Systems Security Engineers / Cyber Engineers to support Raytheon Technologies (RTX) in Fullerton, CA. This role supports the Systems Security Engineering (SSE) team responsible for protecting critical defense systems and ensuring cybersecurity compliance across embedded weapons platforms.You will work on highly visible defense programs focused on protecting the warfighter s technological advantage by implementing cybersecurity and system security engineering solutions across the product lifecycle.Key ResponsibilitiesSupport implementation of Systems Security Engineering (SSE) solutions within RTX productsDevelop and maintain Risk Management Framework (RMF) documentation for Authority to Operate (ATO)Perform analysis of cybersecurity test data and security assessment resultsValidate secure configuration of network devices, servers, operating systems, applications and infrastructureConduct vulnerability assessments using tools such as Nessus, STIG, Evaluate STIG, and RADIXEnsure compliance with NIST RMF cybersecurity controlsDevelop and implement system security architecture and secure system designsCreate cybersecurity artifacts such as patch media, security documentation, and information assurance reportsSupport program protection implementation for embedded defense systemsParticipate in system security requirements, design reviews, and cybersecurity integration activitiesCollaborate with program management, engineering teams, suppliers, and customers on security solutionsSupport proposal development, planning, project tracking, and risk mitigation strategies (Principal level)Basic Qualifications (Senior P3)Bachelor s degree in STEM (Science, Technology, Engineering, Mathematics)5+ years of experience in cybersecurity, systems security engineering, or embedded system securityExperience supporting DoD cybersecurity programsExperience with RMF, NIST security controls, and ATO accreditation processesExperience Generating Security Requirements, Design Artifacts, And Security PlansActive Secret Security Clearance required prior to startExperience using DoD cybersecurity assessment tools (Nessus, STIG, Evaluate STIG, RADIX)Additional Qualifications (Principal P4)8+ years of relevant experience in Systems Security Engineering or CybersecurityExperience designing and implementing secure embedded system solutions for DoD programsExperience leading cybersecurity engineering activities or teamsExperience with Red Hat Enterprise Linux (RHEL) environmentsExperience defining system security architectures and security implementation strategiesExperience interacting with customers and program management to define security solutionsPreferred QualificationsCybersecurity certifications such as CISSP, CEH, GSLC (DoDD 8570 / DoDD 8140 compliant)Experience with Linux Bash or Python scriptingExperience supporting defense aerospace programsStrong analytical, collaboration, and communication skillsExperience working with embedded systems security and supply chain risk management#CyberSecurity #SystemsSecurity #CyberEngineer #SystemsSecurityEngineering #DoDCyber #RMF #NISTRMF #EmbeddedSecurity #AerospaceDefense #Raytheon #RTX #SecurityClearance #SecretClearance #DoDPrograms #RedHatLinux #CyberDefense #SecurityEngineering #InformationAssurance #STIG #Nessus #CyberRisk #ProgramProtection #DefenseTechnology #SecurityArchitecture #CyberJobs #CyberSecurityEngineer #AvionicsSecurity #DefenseCareers