Sr. Embedded Software Engineer

Johnson Service Group is seeking a Sr. Embedded Software Engineer for an ON‑SITE assignment in Sacramento, CA for a long‑term contract. Rate Range is $75-$90/hr

Client is a leading provider of systems, products, and solutions in national security and technology areas.

Client is looking for a Senior Embedded Software Engineer (C++, UAV).

(Preference for previous DOD work on clearance projects, though this one likely will not require it.)

As an Embedded Software Engineer, you will architect and implement mission‑critical software for our next‑generation UAV flight computers. You will be the primary link between complex flight algorithms and custom avionics hardware, developing high‑performance C and C++ applications that ensure deterministic control and absolute system reliability. Working at the intersection of hardware and software, you will collaborate with electrical and GNC engineers to design and implement complex physical‑digital interactions with MATLAB/Simulink.

• Designs, develops, and tests C++ flight software and hardware, sensor, and actuator integrations.
• Analyzes and decomposes system requirements collaboratively with other engineering disciplines.
• Writes software requirements specifications, software test descriptions, design descriptions, and test reports.
• Designs, implements, tests, and documents software according to KUAS specifications.

• Requires BS degree in Computing Science, Computer Science, Computer Engineering, or other technical discipline, or 15 YOE in lieu of BS degree.
• 10 years of C or C++ programming experience.
• Demonstrated understanding of Object‑Oriented programming principles and RTOS systems.
• Demonstrated understanding of software development life‑cycle and clearly document software requirements.
• Hands on ability to troubleshoot hardware‑in‑the‑loop simulation modelling and make firmware updates.

• Skills with tools such as Atlassian, MATLAB/Simulink, VxWorks, Lab View.
• Skills implementing interface controls based on MBSE design documentation.
• Previous familiarity with OMS/UCI, A‑GRA, STANAG 4586, DO‑178C, AS9100.

Johnson Service Group (JSG) is an Equal Opportunity Employer. JSG provides equal employment opportunities to all applicants and employees without regard to race, color, religion, sex, age, sexual orientation, gender identity, national origin, disability, marital status, protected veteran status, or any other characteristic protected by law.