Principal Firmware Engineer

Oho Group; Austin (TX); On-site; USD 110,000 - 160,000; Full time

Job summary

Oho Group in Austin is seeking an experienced Embedded Firmware Engineer to join a grid-scale energy platform team. You will work across real-time embedded systems, developing firmware closely with hardware and power electronics. This hands-on role covers drivers, board bring-up, validation, and control.

You will influence architecture, mentor senior engineers, and contribute to the transition to a more sustainable energy grid while collaborating with hardware, controls, and energy teams.

Qualifications

• Strong C/C++ embedded development across bare-metal and RTOS (ideally Zephyr).
• Experience with ARM Cortex-M/R, low-level drivers, and hardware bring-up.

Responsibilities

• Develop firmware across embedded systems from drivers to system validation.
• Work closely with hardware, controls and power electronics engineers.
• Mentor engineers and influence platform architecture.

Skills

C/C++ embedded

ARM Cortex

Drivers/bring-up

Real-time control

Python testing/automation

Functional safety

Embedded Linux

Yocto

Tools

Zephyr

CI/CD

Job description

A leading clean energy technology company is looking for an experienced Embedded Firmware Engineer to join its next-generation grid-scale energy platform team in Austin.

You’ll be working across real-time embedded systems, developing firmware that sits closely alongside the hardware and power electronics. This is a hands‑on role covering everything from low-level drivers and board bring‑up through to system validation and control.

What You’ll Get

• Ownership of complex embedded firmware across next‑generation energy systems
• The opportunity to work closely with hardware, controls and power electronics engineers
• A technically deep environment where you’ll be involved from early development through to production
• Scope to influence platform architecture and mentor engineers at senior levels
• The chance to work on technology directly supporting the transition to a more sustainable energy grid

What You’ll Bring

• Strong C/C++ embedded development experience across bare‑metal and RTOS environments, ideally Zephyr
• Experience with ARM Cortex‑M/R, low‑level drivers and hardware bring‑up
• Background working with real‑time/closed‑loop control and embedded peripherals
• Experience taking embedded products from development through to production, with Python for testing/automation
• Functional safety experience is beneficial; Embedded Linux, Yocto, CI/CD, bootloaders or power electronics experience would be advantageous