Sr. Software Engineer, Embedded (Qt)

Sr. Software Engineer, Embedded (Qt)

Garden Grove, CA

Harbinger is an American commercial electric vehicle (EV) company on a mission to transform an industry starving for innovation. Harbinger's best-in-class team of EV, battery, and drivetrain experts have pooled their deep experience to bring a first-of-its-kind EV platform to support the growing demand for medium-duty EVs and Hybrids. Harbinger: Familiar Form, Revolutionary Foundation.

About the Role

As a key member of Harbinger's embedded software team, you will be the driving force behind the driver's digital experience and the underlying operating system. Collaborating closely with hardware, design, and vehicle engineering teams, you will play a hands-on role in architecting custom Linux distributions using Yocto and building highly performant, hardware-accelerated user interfaces using Qt/QML for our vehicle clusters and center screens.

What You'll Do

HMI & UI Architecture

• Lead UI Development: Architect and write production-level C++ and Qt/QML code for the digital instrument cluster, center screen, and telematics displays.
• Optimize Graphics: Ensure fluid, 60fps hardware-accelerated rendering on embedded target hardware, utilizing OpenGL/EGL and QtWayland.
• Define HMI Requirements: Translate UX/UI designs into functional technical requirements, ensuring seamless integration between the graphical interface and vehicle state machines.

Embedded Linux & Yocto Development

• Build the OS: Architect, build, and maintain custom embedded Linux distributions using the Yocto Project / OpenEmbedded.
• Manage Recipes & BSPs: Write and maintain BitBake recipes, configure Board Support Packages (BSPs), and customize the Linux kernel and bootloaders (e.g., U-Boot) for Harbinger's specific EV hardware.
• Enable IPC & Connectivity: Implement robust Inter-Process Communication (e.g., D-Bus, MQTT, SOME/IP) to bridge the Qt frontend with underlying vehicle networks and middleware.

Testing, Deployment & CI/CD

• Automate Pipelines: Create and maintain robust CI/CD pipelines specifically tailored for heavy Yocto builds, Qt application testing, and automated software deployment.
• Over-the-Air (OTA) Updates: Support the integration of secure OTA update mechanisms (e.g., RAUC, OSTree) into the Yocto build.
• Ensure Quality: Develop comprehensive unit and integration tests using SIL (Software-in-the-Loop) and HIL (Hardware-in-the-Loop) environments.

System Diagnostics & Cross-Functional Support

• Hardware/Software Debugging: Root-cause complex issues at the intersection of hardware and software using embedded debugging tools (GDB, JTAG, logic analyzers, oscilloscopes).
• Develop Tooling: Support the creation of internal diagnostic tools used by manufacturing, service teams, and fleet management.

Who You Are

Core Technical Skills

• Languages: Strong, production-level proficiency in modern C/C++ and Python.
• Embedded Frameworks: Deep, hands-on expertise with Qt/QML (Qt 5 or Qt 6) and the Yocto Project (Bitbake, OpenEmbedded).
• OS & Architecture: Strong understanding of Embedded Linux concepts, including user space vs. kernel space, device trees, root filesystems, and cross-compilation.
• Automotive Protocols: Familiarity with CAN, LIN, and Automotive Ethernet, and interfacing them with embedded Linux (e.g., SocketCAN).
• Version Control: Experience using Git-based version control systems in a collaborative environment.

Testing & Hardware Experience

• Testing Environments: Experience developing test plans and implementing unit testing (e.g., Google Test, QtTest) within SIL and HIL setups.
• Hardware Bring-up: Experience bringing up custom PCBAs and integrating displays (LVDS, MIPI-DSI, eDP) with embedded Linux boards.
• Requirements Management: Experience with authoring tools such as Polarion, DOORS, Jama, or Visure.

Key Benefits & Perks

Comprehensive Health, Dental & Vision (HDV) – 100% employee covered Early-stage Stock Options Robust Retirement Savings (401k, HSA, FSA) Generous Paid Time Off (PTO) & Parental Leave Annual Vacation Bonus Wellness & Fertility Benefits Cell Phone Stipend Complimentary Meals & Stocked Kitchens

$140,000 - $180,000 USD

Equal Opportunity Harbinger is an equal opportunity employer and complies with all applicable federal, state, and local fair employment practices laws. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, ancestry, sex, sexual orientation, gender, gender expression, gender identity, genetic information or characteristics, physical or mental disability, marital/domestic partner status, age, military/veteran status, medical condition, or any other characteristic protected by law. Harbinger is committed to ensuring that our hiring process is accessible for persons with disabilities. If you have a disability or limitation, such as those covered by the Americans with Disabilities Act, that requires accommodations to assist you in the search and application process, please email us at View email address on click.appcast.io.