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L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.

L3Harris Technologies is the Trusted Disruptor in the defense industry. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

Job Title: Senior Information System Security Officer (ISSO)
Job Code: 24994
Job Location: Plano, TX
Job Schedule: 9/80 REG

Job Description: 
The Cyber Intelligence Information System Security Manager (ISSM) plays a key role on the Information Security team, supporting a dynamic range of current and emerging computer networks, communication systems, and cutting-edge projects. This position collaborates closely with senior leadership to drive strategic initiatives and turn vision into action.

Essential Functions: 
•    Supports and mentors cybersecurity teams; provides leadership coverage in the absence of management.
•    Partners with Cybersecurity Managers on strategic planning, funding allocation, and solution implementation.
•    Conducts and manages risk assessments in compliance with NISPOM/DAAPM, RMF, JSIG, and NIST 800-series (e.g., 800-53, 800-171) standards.
•    Leads development, review, and timely delivery of security artifacts supporting Authority to Operate (ATO).
•    Contributes to Risk Management Framework (RMF) activities and related system lifecycle documentation (e.g., CONOPS, SOPs, training materials).
•    Leads and participates in working groups to enhance policies, procedures, security solutions, and automation initiatives.
•    Performs security reviews and audits; identifies gaps in architecture and develops mitigation strategies.
•    Coordinates with internal and external stakeholders on secure system design and implementation.
•    Oversees cyber compliance efforts through self-inspections, customer audits, and system tests to ensure authorized operation.
•    Manages configuration change processes, including hardware/software updates, account management, media control, and documentation.
•    Performs ISSO responsibilities as needed.
•    Ensures security requirements are addressed in acquisitions, procurements, and outsourcing efforts.
•    Ability to obtain and maintain a Top Secret clearance and additional clearances as required.
•    Ability to lift up to 20 lbs.
•    Willingness to travel up to 15%.
•    Performs additional duties as assigned by senior leadership.

Qualifications: 
•    Active DoD Secret clearance with current 6-year update; eligible to obtain Top Secret clearance.
•    Bachelor’s degree with a minimum of 6 years of relevant experience. Master’s degree with a minimum of 4 years of relevant experience. In lieu of a degree, a minimum of 10 years of prior related experience is required.
•    Must obtain 8140 Certification (e.g., CISSP, CISM) within six (6) months of hire.

Preferred Additional Skills:
•    Bachelor’s or Master’s degree in a STEM or related field preferred; equivalent experience will be considered.
•    Experience working in Special Access Programs (SAPs) and/or Collateral environments.
•    Proficient in tools and technologies such as SPLUNK, Security Center, Trellix Suite (including DLP), DISA STIGs, eMASS, and Group Policy.
•    Skilled in Microsoft Office Suite.
•    Holds a current 8140 Certification (e.g., Security+, CISSP, CISM).
•    Strong organizational, decision-making, and problem-solving abilities.
•    Solid understanding of risk management, mitigation strategies, and customer service best practices.
•    Excellent written and verbal communication and presentation skills.

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L3Harris Technologies is proud to be an Equal Opportunity Employer. L3Harris is committed to treating all employees and applicants for employment with respect and dignity and maintaining a workplace that is free from unlawful discrimination. All applicants will be considered for employment without regard to race, color, religion, age, national origin, ancestry, ethnicity, gender (including pregnancy, childbirth, breastfeeding or other related medical conditions), gender identity, gender expression, sexual orientation, marital status, veteran status, disability, genetic information, citizenship status, characteristic or membership in any other group protected by federal, state or local laws. L3Harris maintains a drug-free workplace and performs pre-employment substance abuse testing and background checks, where permitted by law.

Please be aware many of our positions require the ability to obtain a security clearance. Security clearances may only be granted to U.S. citizens. In addition, applicants who accept a conditional offer of employment may be subject to government security investigation(s) and must meet eligibility requirements for access to classified information.

By submitting your resume for this position, you understand and agree that L3Harris Technologies may share your resume, as well as any other related personal information or documentation you provide, with its subsidiaries and affiliated companies for the purpose of considering you for other available positions.

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