> Markdown version of [/jobs/ext/3416451-software-engineer-iii-embedded-engineer-iii-defense-systems-division](https://www.wearedevelopers.com/jobs/ext/3416451-software-engineer-iii-embedded-engineer-iii-defense-systems-division). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Software Engineer III - Embedded (Engineer III) - Defense Systems Division

- **Company:** Parker Hannifin Corp.
- **Location:** Irvine, CA, United States
- **Experience:** Expert
- **Salary:** $102,305.0 - $170,240.0
- **Contract:** Permanent contract
- **Skills:** Board Bringup, Agile Methodology, Algorithm Design, Application Lifecycle Management, C++ (Programming Language), Device Drivers, Embedded Software, Ethernet, Hardware Interface Design, MATLAB, Systems Development Life Cycle, Real-Time Operating Systems, RS-232, Software Engineering, TCP/IP, Universal Asynchronous Receiver/Transmitter, USB, Serial Peripheral Interface, Modeling and Simulation
- **Published:** September 3, 2026
- **Apply:** https://diversityjobs.com/main/sendform/8/8/28176/1/18204439?backUrl=%2Fcareer%2F18204439%2FSoftware-Engineer-Iii-Embedded-Engineer-Iii-Defense-Systems-Division-California-Irvine

## About the Role

* Education: Bachelor's degree (BSCS/BSEE) with 5-7 years related experience.
 * Mastery of software engineering methodologies and best practices for embedded application development in C/C++ language.
 * Experience in various Software Development Lifecycle (SDLC) models (Waterfall, V, Iterative, Incremental, Spiral, Agile, etc.) and Application Lifecycle Management tools.
 * Extensive experience with hardware interface development including board bring-up, operating system bring-up, and device driver development.
 * Proficient with peripheral hardware interfaces (UART, USB, Ethernet, I2C, SPI, RS232, RS422, etc.) and protocols such as CAN, TCP/IP, UDP, etc.
 * Hands on experience with electronics test and measurement equipment (oscilloscope, logic analyzer, digital multi-meter, etc.).
 * Experience with RTOS and safety-critical processes.
 * Experience with MOSA principles or FACE technical standards is a plus.
 * Must be a U.S. citizen.
 * Must be able to obtain and maintain a U.S. gov't/DOD issued security clearance.

## Description

Design and develop embedded software for ammunition handling systems, thermal management systems, aeromechanical systems, turbo machinery, and various electronics., * Requirement Analysis, Allocation, Derivation, and Traceability

 * Trade Studies, and Risk Analysis
 * Architectural and Module design
 * Module implementation and verification
 * Algorithm development, modeling and simulation using MATLAB
 * Regulatory compliance to customer safety and security standards
 * Technical communication in presentation and document formats
 * In-House and field integration and test