Specialist, Integration and Test Engineer

L3Harris Technologies, Inc.; Colorado Springs (CO); On-site; USD 77,000 - 143,000; Full time

Job summary

L3Harris Technologies seeks a mid-level Integration and Test Engineer to perform Software Systems Integration and System Test for MOSSAIC SDA missions in Colorado Springs. Responsibilities include test planning, defect tracking, and collaboration with engineers to meet verification needs.

Requirements include a bachelor’s degree with 4+ years’ experience (or 8+ years without a degree) and active DoD Secret clearance with TS/SCI potential.

Qualifications

• Bachelor’s Degree with 4+ years of experience; or 8+ years without a degree.
• Graduate Degree with 2+ years of related experience.
• Active U.S. DoD Secret security clearance; ability to obtain TS/SCI within 1 year of hire.
• Experience with SEIT activities and MBSE/SysML concepts.

Responsibilities

• Develop detailed test plans, procedures, and cases from system requirements.
• Identify, document, and track defects through resolution.
• Perform manual and automated testing to ensure software performance and functionality.
• Collaborate with systems/software engineers to validate requirements and verification strategies.
• Analyze test results and drive root-cause investigations with development teams.

Skills

Systems integration

Test execution

Requirements analysis

Defect tracking

SysML

Education

Bachelor's degree required

Graduate degree preferred

8+ years experience in lieu of degree

Tools

Jira

Confluence

Eggplant

Java

C++

Linux

Job description

Job Title: Specialist, Integration and Test Engineer

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 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 Code: 44871

Job Location: Colorado Springs, CO

Job Schedule: 9/80 - Employees work 9 out of every 14 days - totaling 80 hours worked (Every Other Friday Off)

Job Description:

As the premier provider of Space Domain Awareness (SDA) mission solutions for the United States Space Force, L3Harris is seeking a mid-level Integration and Test Engineer to perform Software Systems Integration and System Test functions related to the MOSSAIC C2 Space Domain Awareness (SDA) mission. The ideal candidate will have experience in Systems Engineering Integration & Test (SEIT) activities such as Requirements Development/Derivation, Test Documentation (Plans, Procedures, Reports), Test Execution, System Troubleshooting, and Defect Tracking/Resolution.

Essential Functions:

• Execute and assist in developing detailed test plans, procedures and cases based on system requirements.
• Identify, record, document thoroughly, and track defects through resolution.
• Perform manual and automated testing to ensure software performance/functionality meets the high standards required for L3Harris operations.
• Communicate with government customers to validate requirements and clarify L3Harris engineering processes.
• Collaborate with Systems Engineers, Software Engineers and senior Integration & Test Engineers to identify system requirements for Validation & Verification, ensuring stakeholder needs are met.
• Participate in design reviews and provide input on requirements, product design, test methodology and potential problems.
• Analyze test results, detect issues, and track root causes in collaboration with the development and test teams.
• Assist in the creation and maintenance of technical documentation, including System Models based in SysML.
• Assist in the creation and maintenance of the Test Automation suite.

Qualifications:

• Bachelor’s Degree and minimum 4 years of prior relevant experience. Graduate Degree with 2 years of prior related experience. In lieu of a degree, minimum of 8 years of prior related experience.
• Active U.S. DoW Secret security clearance with the ability to obtain TS/SCI access within 1 year of hire.

Preferred Additional Skills:

• Active U.S. DoW TS/SCI security clearance.
• Active Security+ CE certification
• Basic knowledge of the Space Domain Awareness enterprise and engineering efforts.
• Familiarity with MBSE/MBT/SysML
• Familiarity with Eggplant or similar testing tools
• Familiarity with Jira/Confluence (or equivalent)
• Familiarity with Scaled Agile Framework & DevSecOps methodology
• Familiarity withJava and C++ application software
• Proficiency in Linux

In compliance with pay transparency requirements, the salary range for this role in Colorado state is $76,500 - $142,500. 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 position will close on 11/30/2026.

#LI-ZB2

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.