Senior Manager, Information Security Systems Engineer

L3Harris Technologies

. L3Harris is seeking an Information Security Systems Engineering (ISSE) Senior Manager to lead a team in developing and implementing secure systems.

Posted 5/7/2026full-timeSalt Lake City • Utah • 🇺🇸 United StatesSeniorWebsite

Tech Stack

Tools & technologies

ElasticSearchLinuxLogstashPythonTypeScript

About the role

Key responsibilities & impact

L3Harris is seeking an Information Security Systems Engineering (ISSE) Senior Manager to lead a team in developing 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 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.
The Senior Manager, ISSE applies modern systems security engineering principles, practices, and technologies across the full system lifecycle.
This leader ensures security is architected, designed, developed, evaluated, integrated, and sustained with the fidelity required to meet customer protection requirements and achieve system security authorization.
This role manages experienced security engineering professionals and/or managers.
The Senior Manager influences leadership, drives adoption of new practices and technologies, and ensures functional strategies convert into measurable security engineering outcomes.

Requirements

What you’ll need

Bachelor’s Degree with a minimum of 12 years of prior related experience.
Graduate Degree with a minimum of 10 years of prior related experience.
In lieu of a degree , minimum of 16 years of prior related experience.
Requires an ACTIVE DOD Secret Security clearance with the ability to obtain a TS/SCI CI Poly.
Requires broad leadership knowledge and mastery within technical security engineering domains.
ISC(2) CISSP certification.
Experience with Xacta or eMASS.
In-depth understanding of ACAS (Assured Compliance Assessment Solution) requirements and best practices for vulnerability management and compliance.
Experience with risk management framework based on NIST 800-53 documentation.
Ability to oversee ATO (Authority to Operate) processes.
Experience developing and managing POA&Ms associated with the A&A and processes.
Experience authoring and updating A&A body of evidence (BOE) documentation and Security Relevant Changes.
Direct experience in review RFP’s and drafting ROMs and bid proposals.
Experience managing > 3-million-dollar budgets.
Solid understanding of Systems Engineering V model.
Experience or proficiency with Linux administration, Bash scripting, Python, Windows PowerShell, Windows administration, Nessus, Wireshark, Nmap, Elastic Stack (Elasticsearch, Logstash and Kibana (ELK)).
Excellent understanding of Linux audit and logging system architecture.
Good understanding of directory services - Active Directory and LDAP.
Candidate should understand computer networking and familiarity with NIST publications.
Experience in application hardening through code scanning (with tools such as Coverity/Fortify) and mitigating findings.
Certifications - CySA, CASP, CISSP.

Benefits

Comp & perks

Job Schedule: 9/80 (employee's work 9 out of every 14 days - totaling 80 hours worked - and have every other Friday off)

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

security engineeringvulnerability managementrisk management frameworkATO processesPOA&MsA&A documentationLinux administrationBash scriptingPythonWindows PowerShell

Soft Skills

leadershipinfluencecommunicationteam managementstrategic thinkingproblem-solvingcollaborationcustomer focusadaptabilitydecision-making

Certifications

CISSPCySACASP