Senior Specialist, Systems Engineer - Information Security Security Clearance
Job in
Greenville, Hunt County, Texas, 75401, USA
Listed on 2026-07-13
Listing for:
L3Harris Technologies
Full Time
position Listed on 2026-07-13
Job specializations:
-
IT/Tech
Cybersecurity, Systems Engineer, Information Security & Data Protection
Job Description & How to Apply Below
L3
Harris 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. L3
Harris 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. L3
Harris is the Trusted Disruptor in defense tech. 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 Specialist, Systems Engineer - Information Security Job Code: 40753
Job Location:
Greenville, TX
Job Schedule:
9/80 - Employees work 9 out of every 14 days - totaling 80 hours worked - and have every other Friday off.
Job Description:
Information Systems Security Engineer (ISSE) is part of a team which establishes, supports, and coordinates tasks related to Cybersecurity and Assessment & Authorization (A&A) to obtain and maintain Authorizations to Operate (ATOs) for delivered systems via the NIST 800 Series Risk Management Framework (RMF). This position is part of a larger customer Information Assurance team, coordinating L3
Harris efforts supporting the Information Owner, and assisting the ISSM, to implement actions needed to document current/future baselines and new capabilities in the NIST/RMF-approved process.
Essential Functions:
* Participate in risk and vulnerability assessments (as required) of information systems to identify vulnerabilities, risks, and protection needs, coordinate L3H efforts to develop Security Impact Assessments (SIAs) of proposed system modifications for submittal to the ISSM.
* This position combines an understanding of both software engineering and hardware engineering.
* Prepare and present technical results for internal and external program meetings.
* Develop, track and present technical metrics.
* Understanding of hardware level interdependencies for Infrastructure, Network, & Mission Processor requirements between multiple devices as well as understanding how software works in conjunction with hardware interdependencies.
* Manage requirements in either DOORS or JIRA through all phases of the project.
* Communicates within and outside of the organization to influence leadership to accept new practices, approaches, and concepts.
* Track all assigned systems for A&A (Assessment and Authorization) status and oversee accreditation/reaccreditation actions.
* Responsible for improving upon existing processes or establishing new processes and systems.
* Work cross-functionally to ensure security requirements are addressed throughout the mission system development lifecycle.
* Perform security compliance scans, vulnerability analysis, and drive identified issues resolution.
* Performs periodic vulnerability scans of networks to identify security vulnerabilities and provides remediation alternatives and conducts security risk assessments to ensure compliance with corporate security policies and adherence to best practices.
* Develop and maintain ATO Body of Evidence artifacts.
* Work is 100% on-site and CANNOT be accomplished remotely.
* Active DoD Secret Clearance with ability to obtain Top-Secret Clearance.
Qualifications:
* Bachelor's degree in engineering (Cybersecurity, Computer Science, Electrical, Mechanical, Systems, Software, Physics, etc.) and minimum 6 years of prior related experience.
* Graduate Degree and a minimum of 4 years of prior relevant experience.
* In lieu of a degree, a minimum of 10 years of prior related experience.
* Experience in design, development, and fielding of Systems Security Engineering (SSE) systems.
* Experience translating NIST 800-53 security controls into functional requirements that product teams can implement.
* Experience in drafting Systems Security Engineering Requirements and effectively communicating these requirements with other groups.
* Experience with the Risk Management Framework (RMF) process to include…
Position Requirements
10+ Years
work experience
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