Information Systems Security Engineer (ISSE) II – (Security Clearance)

This role supports DoD Collateral programs by providing onsite system administration, IT infrastructure management, and end-user support. The successful candidate will ensure compliance with the Defense Counterintelligence and Security Agency Assessment and Authorization Guide (DAAG) and National Institute of Standards and Technology (NIST) Special Publication (SP) 800-53 while collaborating with Information System Security Managers (ISSM), Information System Security Officers (ISSO) and Facility Security Officers (FSO). This is a mission-critical position requiring a high level of technical expertise, attention to detail, and a commitment to safeguarding classified information. You will work out of our Torrance, CA location on an ONSITE work schedule. No relocation offered. Key Responsibilities: System Setup and Configuration: Design, deploy, and configure secure IT systems, networks, workstations and Cloud enclaves in accordance with DAAPM and NIST SP 800-53 requirements. Establish and maintain baseline configurations for hardware, software, and network components. Implement and validate Risk Management Framework (RMF) security controls and system hardening measures. End-User Support: Provide Tier 1 and Tier 2 technical support to DoD personnel, troubleshooting hardware, software, Cloud and network issues. Manage user accounts, permissions, and access controls, ensuring compliance with DoD security policies. Create and deliver training or documentation to enhance end-user efficiency and security awareness. Security Collaboration: Partner with the ISSM and ISSOs to integrate security into the RMF processes, supporting Authorization to Operate (ATO) efforts. Report and respond to security incidents or anomalies in coordination with the security team. Operations and Maintenance: Perform routine system maintenance, including patch management, updates, and secure backups, per DAAPM and NIST SP 800-53 guidelines. Monitor system performance and security logs, proactively addressing issues to maintain operational integrity. Maintain detailed documentation of configurations, processes, and standard operating procedures (SOPs). Compliance and Security: Ensure all activities adhere to DAAPM, NIST SP 800-53 and DoD-specific directives. Protect the confidentiality, integrity, and availability of classified and sensitive data. Respond to evolving security requirements and support incident mitigation as needed. Maintain information systems compliance. YOU MUST HAVE Associate’s degree in information technology, Computer Science or related field At least 3 years of Windows system administration experience At least 2 years of Cloud (preferably Azure) administration experience Security Clearance: Secret Certifications: DoD 8140 IAT Level 2 minimum compliant certification Proficiency in configuring and managing secure Windows environments. Proficiency in administrating Cloud environments. WE VALUE Security Clearance: Top Secret Certifications: Microsoft Azure certification Experience with network administration, security tools (e.g., ACAS, STIGs, Splunk, SCC) and system hardening. Prior work with DAAG and NIST SP 800-53 standards or in a defense contracting environment. High level Windows system administration – Windows 10 & 11 High level Windows Server administration – Server 2016/22 Familiarity with virtualization (e.g., VMware) Ability to lift up to 25 pounds (e.g., for hardware setup) and sit/stand for extended periods. Comfortable working in a high-security environment with strict access controls and protocols. The annual base salary range for this position is $127,000 - $159,000 . Please note that this salary information serves as a general guideline. Honeywell considers various factors when extending an offer, including but not limited to the scope and responsibilities of the position, the candidate's work experience, education and training, key skills, as well as market and business considerations. Due to compliance with U.S. export control laws and regulations, candidate must be a U.S. Person, which is defined as, a U.S. citizen, a U.S. permanent resident, or have protected status in the U.S. under asylum or refugee status or have the ability to obtain an export authorization. BENEFITS Beyond a performance-driven salary, you'll work alongside dedicated experts on technology that's advancing aviation. As a Honeywell Aerospace employee, you're eligible for a comprehensive benefits package that includes: Employer-subsidized medical, dental, vision and life insurance Short-term and long-term disability coverage 401(k) match, flexible spending accounts and health savings accounts Employee assistance program and educational assistance Parental leave and 12 paid holidays Paid time off for vacation, personal and sick time Explore your benefits: https://honeywellaerospacebenefits.com/ ABOUT HONEYWELL AEROSPACE Join a company that's reintroducing itself to the aviation community we've helped advance for more than a century. At Honeywell Aerospace (NASDAQ: HONA), we're launching as an independent, publicly traded aerospace and defense company built on a legacy of operational excellence and mission-focused execution. Our new brand identity pairs that heritage with real momentum, as we build technology that helps pilots navigate with confidence, aircraft operate more efficiently, and operators stay ahead of change. With our systems on board 90% of the world's aircraft, your work here has reach that's rare to find anywhere else. Focusing on our customers, investing in innovation, and building a culture of accountability and performance is how we're shaping what comes next. Every horizon. Every mission. Every day. ABOUT THE BUSINESS UNIT Honeywell Aerospace products and services are found on aircraft across commercial aviation, defense and space — from engines and cockpit electronics to cabin systems, mechanical components and connectivity solutions. Our technology helps operators fly more safely, reduce fuel consumption, improve on-time performance and deliver a better experience for the people on board. As aviation continues to evolve, we're also developing systems to support autonomous and supersonic platforms, bringing the same focus on safety and efficiency to the next era of flight. With approximately 36,000 employees worldwide and net sales of $17.4B in 2025, Honeywell Aerospace is one of the largest dedicated aerospace companies in the world. Explore our businesses: https://www.honeywellaerospace.com The application period for the job is estimated to be 40 days from the job posting date; however, this may be shortened or extended depending on business needs and the availability of qualified candidates. Posting Date: 6/17/2026. #LI-Onsite