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Senior Systems Engineer

L3Harris Technologies

On-site
Greenville, TX
Full-time
Senior
6+ yrs
Salary not listedPosted 20m ago

Real job — pulled straight from L3Harris Technologies’s careers page · Verified October 18, 2026 · No reposts.

Job description

L3Harris Technologies is hiring a Senior Systems Engineer — a full-time, based in Greenville, TX role. Apply directly on L3Harris Technologies's careers page below.

Senior Specialist, Systems Engineering

Location: Greenville, TX, US

Employment Type: Full-Time

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 Title: Senior Specialist, Systems Engineering (Design/Development/Integration)

Job Code: 45348

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:

 

The Senior Specialist, Systems Engineer will be responsible for working within an Integrated Product Team to develop systems for a diverse customer base. This team, comprised of engineers from many disciplines, works closely with customers to gain insight into real-world needs, priorities, and obtains operational feedback to provide the best system solutions for our users. As a key member of this team, you will be responsible for software development in a variety of software domains to achieve solutions for various projects/programs. This position requires a self-motivated team player with excellent technical and communication skills.

 

Essential Functions:

 

  • 10% travel based on business needs.
  • Convert algorithms to real-time, reusable DSP C/C++ code that is compliant with an existing system architecture.
  • Support and participate in all phases of the software development life cycle, including requirements analysis, design, implementation, integration, and test.
  • Work closely with team members to evaluate and advance system architecture, interfaces between system components and operational performance requirements.
  • Apply computer science, engineering, and mathematical (when required) analysis concepts and principles in the development of software for the target application.
  • Use Object Oriented Programming (OOP) methodologies to design, develop, test, and maintain software systems.
  • Experience with the Linux Operating System including developing and testing software.
  • Prepare and produce releases of software components.
  • Investigate and resolve defects.
  • Develop documentation as needed.
  • Development of web applications using at least one popular web framework.
  • Network socket programming and Network protocols (TCP/IP, UDP).
  • Designing and developing multi-threaded, distributed systems.
  • Data communications experience with modern protocols and formats (e.g., XML, JSON, REST APls, etc.).
  • Provide recommendations for continuous improvement.
  • Work with flexible goals or shifting priorities.

 

Qualifications:

 

  • Active US TS/SCI security clearance.
  • Bachelor's Degree and minimum 6 years of prior relevant experience.
  • Graduate Degree and a minimum of 4 years of prior related experience.
  • In lieu of a degree, minimum of 10 years of prior related experience.
  • Demonstrated Object Oriented Programming experience with a strong focus on Java, C++, or JavaScript.

 

Preferred Additional Skills

 

  • Multi-threaded programming skills.
  • Experience in a Linux development environment.
  • Network socket programming.
  • Knowledge and understanding of RF and receiver concepts.
  • Software Defined Radio experience.
  • Al/ML experience.
  • Shell scripting experience.
  • FPGA experience.
  • Experience using software configuration management tools (e.g. Git, SVN, etc.).
  • Virtualization as well as containerization technologies like Docker, Podman, and Kubernetes.
  • Rocky/Red Hat Linux Image Customization & Kickstart Scripting.
  • Software architectural expertise (e.g., service-oriented architecture & micro-services).
  • Databases and SQL.
  • Google Protocol Buffer (GPB) data serialization.
  • Object Oriented analysis and design using common design patterns.

 

 

 

#LI-AM2

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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Frequently asked questions

What skills are required for Senior Systems Engineer at L3Harris Technologies?

The required skills for Senior Systems Engineer at L3Harris Technologies include: C++, Linux, Java, JavaScript, TCP/IP, XML, JSON, REST, Git, Docker, Kubernetes, SQL.

What is the seniority level for Senior Systems Engineer at L3Harris Technologies?

Senior Systems Engineer at L3Harris Technologies is a Senior level position.

How do I apply for Senior Systems Engineer at L3Harris Technologies?

You can view the full description and apply for Senior Systems Engineer at L3Harris Technologies on EchoJobs: https://echojobs.io/job/l3harris-technologies-senior-specialist-systems-engineering-420wj.