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RTX
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March 13, 2026
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Cybersecurity Engineer II - Onsite El Segundo, CA

US-CA-EL SEGUNDO-E01 ~ 2000 E El Segundo Blvd ~ BLDG E01
Full-time
Onsite
$76K/yr - $144K/yr
Entry, Mid Level
RTX is a company dedicated to helping the nation and allies defend freedoms and deter aggression. They are seeking a Cybersecurity Engineer II to apply systems engineering principles and ensure the security and integrity of complex technical systems.
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Responsibilities

  • Apply systems engineering principles within Operational Technology (OT), production, and test environments to ensure end-to-end system integration, verification, and validation, supporting the safe, reliable, and efficient operation of complex technical systems
  • Design, develop, document, analyze, test, integrate, debug, conduct research, and/or discover and analyze security flaws or vulnerabilities in software, networks, systems, applications and/or provide mitigation strategies to support RMF (Risk Management Framework)/ATO (Authority To Operate)
  • Ensure system security needs are established and maintained for various objects/matters
  • Integrate new architectural features into existing infrastructures, designs cybersecurity architectural artifacts, provide architectural analysis of cyber security features and relates existing system to future needs and trends
  • Evaluate computer software and network for threats and/or malware; collect data from a variety of network security tools, including intrusion detection system alerts, firewall and network traffic logs, and hosts system logs to analyze events that occur within their environment
  • Employ and provide advanced forensic tools, technique, and intrusion support for attack reconstruction and high technology investigations, while reviewing threat data from various sources
  • Provide Cybersecurity compliance guidance to engineering for production and procurement of TE
  • Maintain accurate and up-to-date records of all equipment assets in accordance with iRAMP requirements to ensure proper accountability, configuration management, and cybersecurity risk tracking throughout each asset’s lifecycle
  • Support Flight Test capabilities and processes for Raytheon test systems
  • Develop Cybersecurity Compliant TE (Linux, IOS, Windows)
  • Install software packages/updates to enhance operations and testing of production hardware
  • Troubleshoot production and development TE to ensure connectivity, functionality, compliance, and test integrity
  • Create and Maintain backups of TE at the request of the customer
  • Collaborate with Digital Technologies to integrate TE to controlled networks or enterprises
  • Collaborate with Cybersecurity to ensure TE compliance (using tools such as Nessus, Splunk, Ivanti, and locally procured software
  • Collaborate with engineering to ensure changes do not affect the availability or test integrity on the TE
  • Collaborate with Operations to ensure changes coincide with production schedules
  • Support any and all reviews required prior for implementation of any changes to the TE

Qualification

Required

  • Typically requires a Bachelor's degree in science, Technology, Engineering, or Mathematics (STEM) and a minimum of two (2) years of relevant experience
  • Experience with systems administration of Linux, Networking, and or Windows (in desktop or server environments)
  • Experience with user account management, software installation and or technical customer support
  • Experience implementing, documenting and accrediting IT systems against NIST 800-171 controls to support US Government CUI standards
  • The ability to obtain and maintain a U.S. government issued security clearance is required
  • U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance
  • Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date

Preferred

  • Active DoD 8140/8570.01m IAT II certified credentials (Sec+, CISM, etc.)
  • Experience working as a System Engineer with an understanding of managing Operational Technology and/or test systems in a production environment
  • Experience working in a classified environments to include Special Access Programs
  • Experience working with CUI and implementing controls in an unclassified environment
  • Knowledge of NISPOM (32 CFR 117), JSIG, RMF (NIST 800-37/-53), ICD-503, and DAAPM, oversight/execution of A&A processes
  • Experience executing DISA STIG/SRG hardening across Linux and Windows environments
  • Experience with ACAS, SCAP, STIG Viewer, DISA SRGs, and/or SIEM/Vulnerability Tools SPLUNK, NESSUS etc
  • Experience with iRAMP (Investigation of Risk Assessment and Management)

Benefits

  • Medical
  • Dental
  • Vision
  • Life insurance
  • Short-term disability
  • Long-term disability
  • 401(k) match
  • Flexible spending accounts
  • Flexible work schedules
  • Employee assistance program
  • Employee Scholar Program
  • Parental leave
  • Paid time off
  • Holidays
RTX is comprised of three market-leading businesses – Collins Aerospace, Pratt & Whitney and Raytheon – working as one to answer the biggest questions and solve the hardest problems in aerospace and defense.
Glassdoor
3.8
Founded in 1922
Arlington, Virginia, USA
10001+ employees
http://www.raytheon.com
RTX is comprised of three market-leading businesses – Collins Aerospace, Pratt & Whitney and Raytheon – working as one to answer the biggest questions and solve the hardest problems in aerospace and defense.
Glassdoor
3.8
Founded in 1922
Arlington, Virginia, USA
10001+ employees
http://www.raytheon.com