Information Security Systems Engineer

L3Harris Technologies; Cascade (CO); On-site; USD 67,000 - 126,000; Full time

Job summary

A leading company in the defense industry is seeking a Senior Associate, Information Security Systems Engineer. The role involves applying security engineering methods to maintain system security, working closely with government customers, and ensuring compliance with security standards. Candidates should have a Bachelor's degree and relevant experience, along with a SECRET security clearance. The position is 100% on-site in Cascade, Colorado.

Benefits

Health and disability insurance

401(k) match

Flexible spending accounts

Education assistance

Parental leave

Paid time off

Company-paid holidays

Qualifications

• 2 years of relevant experience or 6 years without a degree.
• Experience in DoD software selection and approval processes.

Responsibilities

• Apply security engineering methods to system architecture.
• Prepare Certification and Accreditation documentation.

Skills

Risk Management Framework

Security Clearance

Cyber Defense

Scripting

Education

Bachelor’s Degree

Graduate Degree

Tools

Splunk

Bash

Python

PowerShell

Job description

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 : Senior Associate, Information Security Systems Engineer

Job Code : 23238

Job Description :

Applies current systems security engineering methods, practices and technologies to the architecture, design, development, evaluation and integration of systems and networks to maintain system security. 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 will allow for the security authorization of the system of interest. Works with systems developers or commercial product vendors in the design and evaluation of state-of-the-art secure systems, networks, and database products. Uses methods such as encryption technology, vulnerability analysis and security management. Responsible for integration of multiple methods into a cohesive system security perimeter and environment and the policies and procedures necessary to monitor and maintain such an environment. Will prepare Certification and Accreditation documentation, using multiple standards under RMF and derivative processes (DOD 8510, JSIG, ICD-503, CNSSI 1253), to achieve security authorization of supported systems. Represents program security needs, concerns and requirements at customer meetings.

Essential Functions :

• Experience in Risk Management Framework (RMF) accreditation and authorization (A&A) processes to include RMF steps 1-4 (categorization, controls selection, control implementation, security assessment) and standard body of evidence (BoE) package development.
• Experience in DoD software selection and approval processes for COTS, GOTS and FOSS.
• Experience in the application of DISA SRGs and STIGs.
• Support security engineering activities, requirements development, design, test, configuration management and maintenance of information systems and data.
• Assist program security in the development of policies and procedures.
• Support vulnerability assessment activities as required.
• Support the evaluation, qualification, testing and delivery of security architecture improvement, obsolescence replacement and vulnerability response projects.
• Experience in configuration and use of cyber defense and vulnerability assessment tools to include ACAS.
• Strong understanding of threats, vulnerabilities, and risk.
• Work is 100% on-site and cannot be accomplished remotely.

Qualifications :

• Bachelor’s Degree and minimum 2years of prior relevant experience. Graduate Degree and a minimum of 0years of prior related experience. In lieu of a degree, minimum of 6 years of prior related experience.
• SECRET security clearance required.
• 8140.03M IAT-2.

Preferred Additional Skills :

• Windows and Linux system administration skills.
• Experience in the content development and administration of SEIM / audit reduction tools (e.g., Splunk).
• DOD 8570.01M IASAE-1 certification is desired.
• Strong understanding of engineering processes, concepts and information security systems engineering principles (NIST SP 800-160 Vol1).
• Understanding of security control inheritance in terms of IaaS, PaaS and SaaS relationships.
• Experience with A&A package processing in eMASS
• System test and evaluation methods and RMF assessment methodology & process.
• Experience in Cyber Defense technologies.
• Experience with CI / CD, agile system development, and DevSecOps tools and processes.
• Understanding of system vulnerabilities and exploitation.
• General kn owledge of common threats to information systems and how compromise would damage system integrity.
• Scripting experience (Bash / Shell, Python, Perl, PowerShell).
• Experience in application hardening through code scanning (with tools like Coverity / Fortify) and mitigating findings.
• Top Secret clearance is highly desired.

In compliance with pay transparency requirements, the salary range for this role is $67,500 - $125,500. This is not a guarantee of compensation or salary, as final offer amount may vary based on factors including but not limited to experience and geographic location. L3Harris also offers a variety of benefits, including health and disability insurance, 401(k) match, flexible spending accounts, EAP, education assistance, parental leave, paid time off, and company-paid holidays. The specific programs and options available to an employee may vary depending on date of hire, schedule type, and the applicability of collective bargaining agreements.

The application window for this requisition is anticipated to close August 31, 2025.

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.

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 .

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Information System Security Engineer • CASCADE, Colorado, United States