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Managed Services Systems Engineer II
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The Systems Engineer Tier II is a key member of the Managed Services team responsible for supporting and maintaining client IT environments. This role provides advanced technical support,…
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Managed Services Systems Engineer II
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L3Harris Technologies

Manager, Information Security Systems Engineer

Greenville, TX, United States

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Job details

Apply by: Feb 7, 2027
Posting language: English
Posted: Nov 3, 2026

Original job description

Job Title: Manager, Information Security Systems Engineering (ISSE)

Job Code: 47069

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:

L3Harris is seeking an Information Security Systems Engineering (ISSE) Manager to lead the Accreditation, Authorization and Audit team in managing and implementing secure systems. This role focuses on ensuring the security of information systems, networks, and data throughout their lifecycle. Key responsibilities include leading security engineering activities, developing and implementing security solutions, and ensuring compliance with relevant standards and regulations. Works closely with Government customers and the engineering development teams to ensure that the security protection needs, concerns and requirements are defined and implemented with appropriate fidelity and rigor, early and in a sustainable manner throughout the life cycle of system that results in obtaining an ATO.

Essential Functions:

Ability to obtain a US TS/SCI security clearance.
10% travel based on business needs.
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/re-accreditation actions.
Establish a rigorous audit program to support all assigned programs.
Responsible for improving upon existing processes or establishing new processes and systems.
Cultivate relationships with engineering teams to decide on best implementation paths to meet security objectives.
Leadership and Communications skills.
Forecast Systems Engineering Manpower needs based on Program and Potential demand forecast.
Establish training requirements for continued professional development of the team to meet business goals.
Responsible for creating workforce and staffing plans.
Able to socialize ideas, make recommendations, and gain team consensus.
Work is 100% on-site and cannot be accomplished remotely.

Qualifications:

Bachelor’s Degree and minimum 9 years of prior ISSE experience.
Graduate Degree and a minimum of 7 years of prior ISSE experience.
In lieu of a degree, a minimum of 13 years of prior ISSE experience.
CompTIA Sec+ certification.
Demonstrated experience leading and establishing guidance and accountability.
Experience with Xacta or eMASS.
Demonstrated understanding of Risk Management Framework process and best practices for vulnerability management and compliance.
Demonstrated experience with risk management framework based on NIST 800-53 documentation.
Demonstrated experience overseeing ATO (Authority to Operate) processes.
Demonstrated experience developing and managing POA&Ms associated with the A&A and processes.
Demonstrated experience authoring and updating A&A body of evidence (BOE) documentation and Security Relevant Changes.
Demonstrated understanding of networking.

Preferred Additional Skills

Requirements Management.
Proposal Development.
Understanding of Linux audit and logging system architecture.
Understanding of directory services - Active Directory and LDAP.
Understand computer networking and familiarity with NIST publications.
Experience in application hardening through code scanning (with tools like Coverity/Fortify) and mitigating findings.
Certifications - Sec+, CySA, CASP, CISSP.
TS/SCI and CI Poly

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More about this job

Skills

Cybersecurity
Regulatory compliance
Leadership
eMASS
Risk management
Documentation
Linux
Microsoft Active Directory
LDAP
CISSP

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