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

As an Information Systems Security Engineer (ISSE) supporting DoD programs at Honeywell you will play a critical role in maintaining the security reliability and performance of our IT infrastructure in high-security environments. You will be responsible for providing onsite system administration managing IT infrastructure and supporting end users while ensuring full compliance with the JSIG (Joint Special Access Program Implementation Guide) and NIST SP 800-53 this role you will work closely with Information System Security Managers (ISSM) Information System Security Officers (ISSO) and Facility Security Officers (FSO) to safeguard classified information and maintain operational integrity.

You will report directly to the Cyber Security Manager and will work out of our Clearwater FL location on an onsite work schedule.

Key Responsibilities:

• System Setup and Configuration:
  • Design deploy and configure secure IT systems networks workstations in accordance with JSIG 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 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 JSIG 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 JSIG 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.

US CITIZENSHIP REQUIREMENTS
Must be a U.S. Citizen due to contractual requirements.

YOU MUST HAVE

• Security Clearance: Top Secret
• At least 2 years of ISSE experience
• Experience with network administration security tools (e.g. ACAS STIGs Splunk SCC) and system hardening.
• Proficiency in configuring and managing secure Windows environments.
• Certifications: DoD 8140 IAT Level 2 minimum compliant certification

WE VALUE

• Associates degree in information technology Computer Science or related field
• Security Clearance: Top Secret w/SCI eligibility
• Certifications: IAT level 3 Certifications
• Prior work with JSIG and NIST SP 800-53 standards or in a defense contracting environment.
• High level Windows system administration
• High level Windows Server administration
• 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.

BENEFITS OF WORKING FOR HONEYWELL
In addition to a competitive salary leading-edge work and developing solutions side-by-side with dedicated experts in their fields Honeywell employees are eligible for a comprehensive benefits package. This package includes employer-subsidized Medical Dental Vision and Life Insurance; Short-Term and Long-Term Disability; 401(k) match Flexible Spending Accounts Health Savings Accounts EAP and Educational Assistance; Parental Leave Paid Time Off (for vacation personal business sick time and parental leave) and 12 Paid Holidays. For more information visit: click here

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: 1/30/2026

ABOUT HONEYWELL
Honeywell International Inc. (Nasdaq: HON) invents and commercializes technologies that address some of the worlds most critical challenges around energy safety security air travel productivity and global urbanization. We are a leading software-industrial company committed to introducing state-of-the-art technology solutions to improve efficiency productivity sustainability and safety in high growth businesses in broad-based attractive industrial end markets. Our products and solutions enable a safer more comfortable and more productive world enhancing the quality of life of people around the globe. Learn more about Honeywell: click here

THE BUSINESS UNIT
Honeywell Aerospace Technologies (AT) products and services are found on virtually every commercial defense and space aircraft in the world. We build aircraft engines cockpit and cabin electronics wireless connectivity systems mechanical components and more and connect many of them via our high-speed Wi-Fi offerings. Our solutions create healthier air travel more fuel-efficient and better-maintained aircraft more direct and on-time flight arrivals safer skies and airports and more comfortable flights along with several innovations and services that reflect exciting and emerging new transportation methods such as autonomous and supersonic flight. Revenues in 2023 for Honeywell Aerospace Technology were $14B and there are approximately 21000 employees globally. To learn more please click here

Honeywell is an equal opportunity employer. Qualified applicants will be considered without regard to age race creed color national origin ancestry marital status affectional or sexual orientation gender identity or expression disability nationality sex religion or veteran status. Learn more about inclusion and diversity: click here