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Software Systems Engineer 3 - Conceptual Programs

Plano, Texas

Job ID IMS20222706-85266
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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 with the L3Harris's engineering team, 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.

  • Full Time
  • Level: Experienced
  • Location: On Site
  • Glassdoor Reviews and Company Rating

Success Profile

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

  • Analytical
  • Collaborative
  • Leader
  • Problem Solver
  • Strategic
  • Technical


Flexible work schedule, paid overtime, cool technology, no micromanagement, nice campus, fun co-workers

Systems Engineer

L3Harris Work Perks

  • Health

    • Medical with a High Deductible and traditional PPO plan options, as well as, vision and a full array of supplemental health benefits
    • A doctors' service to help with referrals and second opinions for you, your family, and parents

  • Family

    • 4 weeks of paid parental leave for moms and dads
    • Fertility treatment
    • Subsidized backup childcare and eldercare
    • Adoption assistance - $5,000 per adoption/$15,000 per employee
    • Pet insurance

  • Well-Being

    • No cap to your PTO time (for exempt employees)
    • Dress for your day - wear what works for you at work
    • Legal plan for you, your family, and parents
    • Discount platform
    • 9/80 work schedule available for most U.S. employees, effective October 24, 2022.

Job Description

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 space, air, land, sea and cyber domains. L3Harris has approximately $18 billion in annual revenue and 47,000 employees, with customers in more than 100 countries.


Job Title: Software Systems Engineer 3 - Conceptual Programs

Position: IMS20222706-85266

Location: Plano, TX

Job Description:

As a Software Systems Engineer 3, you will support the Conceptual Programs business aream, which are advanced low Technology Readiness Level (TRL) programs in support of advanced defense related research and development. In this role, you’lll work with the engineering team in development, implementation, testing and analysis of technical products and systems.

This position is part of the Advanced Systems & Technologies (AS&T) division, which specializes in developing disruptive, next-generation technologies for advanced radar systems, next-generation weapon systems, and other RF sensor technologies. As the non-traditional 6th prime, we're developing entirely new clean sheet designs. We are immersed in technology and we are technology driven, so you’ll be a part of a completely different culture and mission mindset. Our team sizes are smaller, allowing for collaboration, great ideas, and contribution from all levels in an agile product development environment. In other words, you're not stove-piped into one area, and instead can work the entire engineering lifecycle. You get to solve hard problems. Your day is spent working on new and exciting technology and methodology that hasn't been done before. You're inspired to do your best work every day, because what we do matters!

Essential Functions:

  • Software requirements definition, flow-down and traceability for complex distributed systems
  • System design or synthesis of simple systems in small teams
  • Implementation of UML or SysML artifacts and Digital Analysis in a Digital Engineering toolsets
  • Implement current processes and methodologies being utilized on programs for the development of program level data threads and system models (e.g. Agile/SCRUM based tasking via Jira, Confluence, GitHub)
  • Present on model implementation and usage to new users, consumers, and leaders
  • Develop and run simulations and other analysis tools to predict system performance in various environments
  • Verify software and system requirements
  • Support risk assessment and development of mitigation strategies
  • Contribute to processes and standards for software/PL architectures
  • Obtain and maintain a DoD clearance as well as any additional clearances required
  • Other duties as assigned
  • Travel up to 10%


  • U.S. citizen
  • Bachelor’s degree in engineering or science
  • Minimum of 4 years of experience in a related engineering field with some systems engineering experience, preferably in complex system development.
  • Experience in design, development and/or testing of radar or sensor processing
  • Experience with radar system components including antenna, receiver, exciter, and processor
  • Experience with requirements definition, flow-down and traceability
  • Experience with software design, development and test experience
  • Experience with Model Based System Engineering
  • Experience with Micro Services Architecture
  • Exposure to programmable logic design flow, including pinout definitions, code generation and timing closure.
  • Experience with Continuous Integration processes
  • Working knowledge of military standards
  • Software design, development and test experience
  • Proficient experience with C or C++
  • Proficiency with Microsoft Office products

Preferred Additional Skills:

  • Master’s degree in Engineering or Science and/or equivalent experience desired.
  • Defense industry experience
  • Existing DoD clearance with a current 6 year update
  • Inside knowledge of FPGA capabilities, limitations, and applications.
  • Familiarity with DOORs
  • Familiarity with Radar processing modes
  • Excellent people skills, with experience leading and collaborating in a multi-disciplinary, diverse, and dynamic team environment.
  • Outstanding work ethic and commitment to organizational success
  • Excellent communication skills (written, verbal, & presentation)

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 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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