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Software Engineer 3 -Applications

Plano, Texas

On the L3Harris team, your job is to secure the world. We don’t work here just for the advanced technology and equipment: We work here because we know what – and who – we’re protecting. From families to the intelligence community, and from our climate to our men and women in uniform – we’re making the world a safer place. Working in Software with L3Harris you'll join our team of qualified, diverse individuals and work in a fast-paced environment with high expectations, global scope, and a collaborative team setting.


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What makes a successful Software Engineer at L3Harris? Check out the traits we’re looking for and see if you have the right mix.


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I love my job because every day there’s a new problem to tackle, a new skill to learn and an awesome team that has my back.

Heather S., Engineer

Job Description

Job ID AS20203108-50102 Date posted 09/10/2020

L3Harris is dedicated to recruiting and developing diverse, 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 an agile global aerospace and defense technology innovator, delivering end-to-end solutions that meet customers’ mission-critical needs. The company provides advanced defense and commercial technologies across air, land, sea, space and cyber domains. L3Harris has approximately $18 billion in annual revenue and 48,000 employees, with customers in more than 100 countries.


Job Title:  Software Engineer 3 -Applications

Job Code: AS20203108-50102

Job Location: Plano,TX

L3Harris Advanced Systems & Technologies (AS&T) 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.

As a Software Engineer 3 - Applications you will be  responsible for requirements, analysis, design,development, testing and integration of embedded and application software.

Major Job Activities: 

  • Analyze and assist in the development  of requirements flowed down by Systems Engineering to develop software architecture and software design.
  • Design, document, develop and unit test software for systems in accordance with the Software Development Process and coding standards and guidelines.
  • Participate in software design/code  reviews
  • Present designs in internal and external  program meetings
  • Participate in Integration efforts/Bug fixes
  • Participate in estimating efforts for  programs
  • Provide input to project schedule, financial and technical goals  as assigned
  • Support risk assessment and  development of mitigation strategies
  • Other duties assigned


  • Must be a U.S. citizen with existing DoD secret clearance with current 5 year update; must be able to obtain additional clearances as required
  • Bachelor’s degree in ComputerEngineering, Computer Science, or related field with required years of software experience
  • A minimum of 5 years experience in Computer/Software Engineering field
  • A minimum of 5 years experience  in  C++ or C#
  •  Fluent in C++ or C#
  • Experience  with Agile/Scrum Development
  • Experience developing software on a team
  • Excellent people skills to  include collaborating in a multi-disciplinary, diverse, and dynamic team  environment
  • Outstanding work ethic and commitment to organizational success
  • Proficient with Microsoft Office products
  • Excellent communication skills (written, verbal, and presentation)
  • Experience developing software on a team
  • Outstanding work ethic and commitment to organizational success
  • Proficient with Microsoft Office  products
  • Excellent communication skills (written, verbal, & presentation)

Preferred Additional Skills:

  • Experience with Atlassian tool suite
  • Defense experience


  • Ability to  lift up to 20 lbs.
  • Ability to travel up to 10%
  • Support Field Testing

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 résumé for this position, you understand and agree that L3Harris Technologies may share your résumé, 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 proud to be an Affirmative Action/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.


L3Harris Work Perks

  • career development

  • Dress for your day

  • Tuition reimbursement

  • Flexible Schedule

  • parental leave

  • adoption cost benefit

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