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Navigation Software Engineer 3

Apex Systems
Los Angeles, CA Full Time
POSTED ON 7/24/2026 CLOSED ON 8/21/2026

What are the responsibilities and job description for the Navigation Software Engineer 3 position at Apex Systems?

Job#: 3043261

Job Description:

Navigation Software Engineer 3 / 4

Location: Woodland Hills, California (On-site)

Clearance: Secret Clearance

Role Overview

We are seeking a Software Engineer to join a team focused on developing, testing, and debugging software for advanced navigation systems. This role offers an opportunity to enhance capabilities in software design and code development. You will perform software and system integration on state-of-the-art hardware and work within an agile and collaborative development environment.

Key Responsibilities

  • Develop, test, and debug software for navigation systems.
  • Perform software and system integration on hardware.
  • Utilize software development techniques such as Model-Based Engineering.
  • Collaborate with peers and internal teams in an agile environment.
  • Develop and maintain working relationships with internal and external stakeholders.
  • Translate formal software requirements into software designs.
  • Define software requirements for navigation systems.

Required Qualifications

This position may be filled at the Principal or Senior Principal level.

Basic Qualifications for Principal Software Engineer:

  • Bachelor's degree in a STEM field with 5 years of software development experience; or a Master's degree with 3 years of experience; or a PhD with 1 year of experience.
  • Experience developing software in MATLAB/Simulink.
  • Experience with C and Python programming.
  • Experience with software management tools such as ClearCase, Git, ClearQuest, or Jira.
  • Experience using MATLAB to create, process, and analyze data.
  • Experience using Simulink to model dynamic systems.
  • Experience with Navigation Systems and INS/GPS Kalman filter design.
  • Demonstrated ability to work in a collaborative development environment.
  • U.S. Citizenship is required.
  • Must be willing and able to obtain a DOD Secret clearance prior to starting.
  • Must be able to work on-site full-time.

Basic Qualifications for Senior Principal Software Engineer:

  • Bachelor's degree in a STEM field with 8 years of software development experience; or a Master's degree with 6 years of experience; or a PhD with 4 years of experience.
  • Experience developing software in MATLAB/Simulink.
  • Experience with C and Python programming.
  • Experience with software management tools such as ClearCase, Git, ClearQuest, or Jira.
  • Experience using MATLAB to create, process, and analyze data.
  • Experience using Simulink to model dynamic systems.
  • Experience with Navigation Systems and INS/GPS Kalman filter design.
  • Demonstrated ability to work in a collaborative development environment.
  • U.S. Citizenship is required.
  • Must be willing and able to obtain a DOD Secret clearance prior to starting.
  • Must be able to work on-site full-time.

Preferred Qualifications

  • Active DOD Secret Clearance highly preferred
  • Experience in the development and performance of software tests.
  • Experience using DOORS for software requirements management.
  • Expertise in Sensor Fusion for Navigation Systems using IMU, GPS, and other sensors.
  • Expertise in Inertial Navigation System (INS) mechanizations.
  • Expertise in Embedded INS/GPS navigation systems.
  • Experience developing software systems that comply with RTCA DO-178B/C or similar guidelines.
  • Demonstrated use of MATLAB for simulation and INS/GPS system performance evaluation.
  • Hands-on experience with communication protocols such as MIL-STD-1553, ARINC-429, or RS-422.
  • Experience with code analysis and software test tools.

Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRateds Best of Staffing® in Talent Satisfaction in the United States and Great Place to Work® in the United Kingdom and Mexico.

Everforth Apex uses a virtual recruiter as part of the application process. Click here for more details. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Everforth Apex and its affiliates, and contracted partners. Frequency varies for text messages. Message and data rates may apply. Carriers are not liable for delayed or undelivered messages. You can reply STOP to cancel and HELP for help. You can access our privacy policy at https://www.apexsystems.com/privacy-policy

Everforth Apex Benefits Overview: Everforth Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6 months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Everforth Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our ‘Welcome Packet’ as well, which an Everforth Apex team member can provide.

Everforth Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.

If you require an accommodation under the Americans with Disabilities Act to participate in an interview with a virtual recruiter or to use our website for a search or application, please contact our Benefits Department at [email protected] or 804-523-8228. Please note that this contact information is strictly to be used for medical ADA accommodations and that no other inquiries will be answered.

UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Everforth Apex Systems.

© 2026 Everforth, Inc. All rights reserved.

Everforth Apex Systems is part of the Commercial Segment of Everforth, Inc.

NYSE: EFOR

4400 Cox Road

Suite 200

Glen Allen, Virginia 23060

Everforth Apex is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law. If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation in using our website for a search or application, please contact our Benefits Department at [email protected] or 804-523-8228. (Do not submit resumes or solicit consultants to this email address). UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Everforth Apex.

Salary : $75 - $130

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