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Salary
≈ $122k – $227k per year (Estimated)
Location
In office (Columbia)
Seniority
Senior · 6+ years exp
Visa
H-1B filings in 12 months: 5 · for this role: 3

Confirmed on the employer's own hiring board on Oct 31, 2026. First seen by Alion on Oct 16, 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 Specialist, Software Engineer

Job Code: 45753

Job Location: Columbia, MD

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 L3Harris Communications & Spectrum Dominance (CSD) segment Mission Critical Communications sector (MCC) is seeking a highly motivated, team oriented embedded software design engineer who will be a member of a cross functional team with hands on responsibility for all phases of the software development process from requirements definition through integration and testing of completed product. Emphasis will be on cryptographic subsystem (CSS) software development. Other responsiblities will include system/software analysis, architecture definition, high-level design, detailed design, implementation, testing, documentation, and government certification of embedded software for radio or other communications products. Requires the application of the principles and techniques of computer science, engineering, and mathematical analysis.

Experience with embedded C++/C, Agile Scrum, and DevOps-based software development is expected. Experience working in collaborative software design/development/test teams ranging in size from 3 to 30 engineers is desired. Experience in engineering requirements analysis, development, and testing is desired. Experience with government certification of engineering designs is also desired.

Essential Functions:

  • Research, design, develop, modify and evaluate embedded computer software for electronic equipment or other communications systems in conjunction with hardware product development.
  • Deliver the assigned portion of the entire product development cycle in an Agile Scrum environment including system/software requirements analysis, high level and detailed design, implementation, testing, integration, documentation, and government certification of embedded software designs.
  • Determine design approaches and parameters. Analyze software requirements to determine feasibility of design within time and cost constraints. Analyze equipment to establish operating data, conduct experimental tests and evaluate results.
  • Perform detailed analysis including: requirements analysis, use case scenarios, conceptual design, trade studies, test, operation, maintenance, and reliability analysis of radio communications products, internal subsystems, and external systems.
  • Perform the functional analysis, requirements allocation and technical interface definition to translate customer requirements into software development specifications for the radio and associated subsystems.
  • Develop block diagrams and interface design specifications.
  • Work with product design, test, manufacturing, logistics engineering teams, product and program management and other groups, and external customers as needed to define and execute radio product development projects and deliver high-quality radio products.
  • Prepare design and implementation reviews and oversee the configuration management and control of requirements and design documentation, and development software. Present technical briefings and status reviews.
  • Ensure the conversion of customer requirements, including informal requirements, into total systems solutions that balance the technical, schedule and cost constraints of the program.
  • Consult with electrical engineers and other engineering staff to evaluate interface between hardware and software and operational performance requirements of the overall system.
  • Develop software system testing procedures and design documentation.
  • Effective interpersonal skills, ability to convey technical matters in a clear and logical manner.
  • Travel up to 15% of the time
  • Active Secret U.S. DOD Security Clearance (or inactive for less than 2 years). This position requires the candidate to already possess an active DOD Secret clearance (or a DOD Secret clearance inactive less than 2 years which can be immediately reactivated), and to maintain the clearance.

Qualifications:

  • BS degree in Engineering discipline with a minimum 6 years of relevant experience developing real-time embedded software in C or C++ (4 years with MS degree).
  • 4+ years experience developing and testing software developed in C or C++.
  • 4+ years experience with OOA/OOD software development methodology.
  • 4+ years experience in full development lifecycle for software projects.
  • 4+ years of experience producing software development documents, such as design documents and test plans.

Preferred Additional Skills:

  • Experience developing bare metal software on an embedded microprocessor in C, C++, or Rust.
  • Experience designing and developing device drivers.
  • Experience with UML and OOA/OOD software development methodology.
  • Experience with all phases of the software project development life cycle, including software analysis, design, development, testing (including software unit testing), and automation tools.
  • Experience in Agile software development methodologies using an iterative, time-boxed development process (SCRUM).

In compliance with pay transparency requirements, the salary range for this role is $111,500 - $207,500. 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.

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