Skip to main content

Information Systems Security Officer (ISSO)

Columbia, Maryland

Job ID SAS20202411-53610
Apply Now


Our Business and Operations team has an unwavering focus on our commitment to excellence in everything we do. They’re the backbone of our ability to deliver mission solutions with speed, innovation and flawless execution.

  • Full Time
  • Level: Varies
  • Travel: None
  • Glassdoor Reviews and Company Rating

Success Profile

What makes a successful Business and Operations team member at L3Harris?
Check out the traits we’re looking for and see if you have the right mix.

  • Collaborative
  • Detail-Oriented
  • Influential
  • Organized
  • Strategic
  • Technical


My favorite part of working for L3Harris is knowing that the parts that I procure go into products that help save lives.

Lizzie, Procurement Associate, Rochester, NY

L3Harris Work Perks

  • Career

  • Dress For
    Your Day

  • Tuition

  • Flexible

  • Parental

  • Adoption Cost

Job Description

L3Harris is dedicated to recruiting and developing diverse, 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 an agile global aerospace and defense technology innovator, delivering end-to-end solutions that meet customers’ mission-critical needs. The company provides advanced defense and commercial technologies across air, land, sea, space and cyber domains. L3Harris has approximately $18 billion in annual revenue and 48,000 employees, with customers in more than 100 countries.


Job Title: Sr. Specialist, Cyber Intelligence

Job Code: SAS20202411-53610

Job Location: Columbia, Maryland

Job Description:

The L3 Harris Cyber Security Department is seeking an experienced cyber security professional to join our Columbia security team as an Information Systems Security Officer (ISSO).  This is a fast paced, high volume position supporting multiple programs and customers as part of a team.  Candidate will focus on multiple accredited programs and assisting the Information Systems Security Manager.

Essential Functions:

  • The ISSO will provide support to the ISSM for maintaining the appropriate security posture of systems in accordance with NISPOM Chapter 8 and/or ICD 503 RMF/JSIG. 
  • The ISSO assists with the management of security aspects of the information system and works closely with the system administrator to support day-to-day security operations of the system. 
  • The ISSO will maintain the RMF security controls in eMASS, maintain POA&Ms and update artifacts to reflect the system configuration and architecture.
  • The ISSO will perform crucial weekly continuous monitoring and audit log reviews (Windows Event Viewer, Splunk), backup operations (Symantec/Veritas Backup Exec), and anti-virus definition (Symantec Endpoint Protection/Manager) updates.
  • The ISSO provides support to the customer on matters involving the security of the information system and assists in maintenance to ensure the system accreditation is maintained. This includes developing and updating the system security plan, POA&Ms and supporting artifacts, as well as managing and controlling changes to the system and assessing the security impact of those changes. 
  • The ISSO also provides support to plan, coordinate, and implement IT security programs and policies and provides configuration management for security-relevant information system software, hardware, and firmware. 
  • The ISSO will assist the ISSM with the continuous monitoring of accredited systems.


  • Bachelor’s Degree in Computer Science or related field and at least 6 years of relevant experience, or equivalent
  • Active Secret clearance
  • DOD 8570 compliant IAT Level II, possess at least a SEC+CE, GSEC, CCNA-Security, or SSCP

Preferred Additional Skills:

  • Experience with NISPOM Chapter 8 and/or ICD 503 RMF/JSIG
  • Familiarity with multiple intel community and DCSA system accreditation procedures
  • Experience hardening operating systems
  • Experience with vulnerability and compliance scanning tools (SCAP, Nessus, etc.)
  • Experience implementing and monitoring with the Risk Management Framework (RMF)
  • Experience managing Windows 10 based operating systems
  • Active Top Secret clearance
  • Advanced security certifications (CISSP, Security+, etc.)
  • Strong investigative drive
  • eMASS experience
  • Self-motivated individuals
  • Strong written and oral communication skills
  • Ability to work in a team environment
  • Understanding of system vulnerabilities and exploitation
  • Understanding of vulnerability mitigation

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 résumé for this position, you understand and agree that L3Harris Technologies may share your résumé, 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.

L3Harris Technologies is proud to be an Affirmative Action/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.

L3Harris Technologies is an E-Verify Employer. Please click here for the E-Verify Poster in English or Spanish. For information regarding your Right To Work, please click here for English or Spanish.

Join Our Talent Community

Sign up for job alerts and be the first to know about our job openings.

Select a job category and/or location, then click "Add" for each saved search. Finally, click "Sign Up" to create your job alert.

Interested In

  • Security, Columbia, Maryland, United StatesRemove
  • Business & Operations, Columbia, Maryland, United StatesRemove

You have not saved any jobs.

View All Jobs

Awards and Recognition

Fortune 2021 - World's Most Admired Companies
Forbes 2020 Award - Worlds Best Employers
Great Place to Work
Forbes 2020 Award - World's Best Employers for Veterans
Bloomberg Gender Equality Index
Forbes 2020 Award
Top HBCU Supporters
CEO Action
Catalyst CEO
Fortune 100 Best Companies
Handshake Early Talent Award