Senior Firmware Engineer

Job Title: Senior Firmware Engineer

Location: On-site – California, USA

Salary: $135,000 – $185,000

Work Type: Full-time

Clearance: US Citizen required

About the Role

We are hiring a Senior Firmware Engineer to join a high-performing engineering team developing innovative connected devices across consumer and healthcare environments.

This role requires a hands-on engineer who can take ownership of firmware development across the full product lifecycle, from concept through to production and deployment.

Key Responsibilities

• Own firmware development across new and existing products

• Write high-quality embedded code, including features and bug fixes

• Lead firmware contributions in cross-functional product development

• Collaborate with hardware, testing, and product teams

• Support system design, debugging, and optimisation

• Develop test applications, documentation, and requirements

• Drive timely delivery of firmware milestones

• Support product launches and post-release improvements

• Work with external vendors and partners where required

Required Experience

• 5+ years experience in firmware / embedded systems engineering

• Strong programming skills in Embedded C (C++)

• Experience with ARM-based microcontrollers

• Experience with RTOS (FreeRTOS, Zephyr or similar)

• Strong experience with:

• Serial communication protocols (SPI, I2C, USART)
• Low-level debugging (JTAG or equivalent)
• Hardware bring-up and system integration
• • Ability to read and understand hardware schematics
• • Experience with product development and productisation

Tools & Environment

• VS Code or similar IDEs

• CMake, GNU toolchains

• Git, Jira

• WSL or Linux-based environments

Nice to Have

• Experience with wireless / cellular communication

• Understanding of IoT system architecture

• Experience with power optimisation

• Exposure to full product lifecycle from concept to launch

Additional Information

• On-site role in California

• Approx. 10% international travel

• Strong cross-functional collaboration environment