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Salary
≈ $116k – $213k per year (Estimated)
Location
In office (Richardson)
Seniority
Senior · 2+ years exp
Visa
H-1B filings in 12 months: 5 · for this role: 3

Confirmed on the employer's own hiring board on Oct 25, 2026. First seen by Alion on Oct 23, 2026. L3Harris Technologies scores A on the Alion truth index.

Overview
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L3Harris Technologies is an American defense contractor formed in 2019 by the merger of L3 Technologies and Harris Corporation. It builds tactical radios and military communication systems, electronic warfare and intelligence, surveillance and reconnaissance equipment, space sensors and satellites, night vision devices, and uncrewed surface vessels, and owns the rocket engine maker Aerojet Rocketdyne. Its main customers are the United States Department of Defense and allied governments. The company is headquartered in Melbourne, Florida, United States.

Job Title: Senior Associate, Software Engineering

Job Code: 46566

Job Location: Richardson, TX - On Site

Job Schedule: 9/80 - Employees work 9 out of every 14 days - totaling 80 hours worked - and have every other Friday off Sign on Bonus: This position offers a $10,000 sign on bonus for external candidates who currently hold an active U.S. Security Clearance

Job Description:

As a Senior Associate, Software Engineer, you will be responsible for supporting the development and execution of software interfacing with targeted hardware. You will be responsible for designing the software per requirement documents and system level design documents. There will be a focus to interface with the test engineers to influence test automation.

The Agile Development Group (ADG) division specializes in developing disruptive, next-generation technologies for advanced Unmanned Air Systems (UAS / UAV), advanced radar systems, next-generation weapon systems, and other RF sensor technologies using small company agility and big company experience.

Essential Functions:

  • Apply computer science, engineering, and mathematical analysis concepts and principles in the development of software for the targeted platform
  • Proficient in C++ and/or C#
  • Work closely with cross functional members of the engineering organization to develop and evaluate interfaces and applications between hardware, firmware and software, and operational performance requirements and design of the overall system
  • Investigate root-cause of complex issues, and implement solutions, working independently or with a multi-discipline team
  • Support and participate in all phases of the software development life cycle, including requirements analysis, design, implementation, hardware-software integration, and formal test
  • Develop software test plans and procedures, and other relevant technical documentation
  • Utilize modeling tools and equipment to establish operating data, conduct experimental tests, prototype, and evaluate results
  • Participate in peer reviews, identify, track and repair defects

Qualifications:

  • Active US Secret Clearance required
  • Bachelor’s degree in Computer Science, Computer Engineering, or related field and a minimum of 2 years experience in computer/software engineering field, or a Graduate degree with 0-2 years of related experience or, in lieu of a degree, 6 years of related experience.
  • Minimum of 2 years C++ or C# development in a professional environment

Preferred Additional Skills:

  • Experience with Modern C++, C#
  • Experience with Python and bash
  • Experience with Agile Scrum/Kanban development processes and procedures
  • Familiar with containerized development and tools like Kubernetes, Docker, and Helm in a Linux environment
  • Knowledge of Real Time Operating Systems (RTOS) like GreenHills Integrity
  • Experience with Doxygen, LaTex, SonarQube, and vcpkg is a plus
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