L3Harris

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: Associate Manager, Information Systems Security Manager (ISSM)

Job Code: 23710

Job Location: Palm Bay, Florida

Job Schedule: 9/80

Job Description:

We’re looking for an Information Systems Security Manager (ISSM) to join our team and support a government-authorized system under the guidance of the Senior ISSM. In this role, you’ll play a key part in protecting a large classified wide area network (WAN), ensuring compliance with U.S. government cybersecurity standards such as ICD 503, RMF, JSIG, and NIST, as well as customer-specific requirements. You’ll lead and support a team of Information Systems Security Officers (ISSOs) through the full RMF lifecycle, from initial assessment to ongoing authorization.

We’re seeking someone with a solid background in both IT and cybersecurity, who can help define, implement, and maintain effective security policies, strategies, and procedures—including documentation like SSPs, POA&Ms, SOPs, and system profiles. You'll monitor the cybersecurity program through inspections and audits, apply corrective actions when needed, and work closely with stakeholders and IT teams to ensure a secure and compliant system environment. You’ll also respond to incidents such as data spills or integrity issues, and develop and deliver cybersecurity training to a range of users. If you’re passionate about mission-driven cybersecurity work and thrive in a collaborative, high-stakes environment, we’d love to hear from you.

Essential Functions:

• Track all assigned systems for A&A status and oversee accreditation/re-accreditation actions.
• Evaluate and approve Assessment & Authorization (A&A) documentation of assigned systems.
• Perform security control assessments and oversee execution of Continuous Monitoring Plans.
• Interface with program management, IT leadership, and engineering functional leads to develop and maintain secure networks and implement best cybersecurity hygiene practices.
• Coordinate with customer security representatives and operational leadership to provide status, complete deliverables, and facilitate assessment and authorization actions.
• Ensure all systems are comprehensively monitored for anomalous activity.
• Manage the spillage response process for areas of responsibility.
• Develop new concepts or standards which make significant and impactful improvements to processes, systems, solutions, or products.
• Provide tasking and guidance to ISSO team.

Qualifications:

• Active Top Secret security clearance with SCI.
• Willingness to submit to a Full Scope (FS) polygraph investigation (current polygraph preferred).
• DoD 8570.01-M IAM II certification.
• Bachelor’s Degree with a minimum 6 years prior relevant experience. Graduate Degree with a minimum of 4 years of prior related experience. In lieu of a degree, minimum of 10 years of prior related experience.
• Minimum 9 years of prior relevant experience to include experience with networking equipment; experience interpreting vulnerability scanning results (e.g. Nessus, Rapid7, etc.); experience reviewing workstation, server, firewall, & IPS logs (e.g. Splunk); experience with SIEM, DLP, and/or UBA tools.

Preferred Additional Skills:

• Graduate degree in Cybersecurity or a related discipline from an accredited college or university.
• Experience as an ISSO or ISSM managing cybersecurity on classified systems under multiple agencies’ JSIG, NISPOM Ch8, ICD 503, and/or NIST 800-53 implementations.
• Experience developing, managing, and providing evidence to close POA&Ms associated with the A&A and project management processes.
• Experience authoring and updating A&A body of evidence (BOE) documentation and Security Relevant Changes (SRC).
• Experience with diverse workstation and server operating systems, including but not limited to Microsoft and Linux offerings.
• Exceptional verbal, written, interpersonal and presentation skills, customer relationship building skills, analytical skills and ability to lead/mentor teams.
• Able to socialize ideas, make recommendations, and gain team consensus.
• Excellent time management and task prioritization skills.
• Flexibility to adjust to changing requirements, schedules, and priorities.
• High level of personal motivation and initiative to learn and acquire new skills.

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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