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Job Details

Sr. Staff Engineer, Software

  2025-11-04     InnoPhase IoT     San Diego,CA  
Description:

If you are keen to work with a bunch of brilliant people with various backgrounds, share the value of working smart and celebrating successes, and have enthusiasm for big technology in a small company, you'll find your playground at Innophase IoT.

We are looking for people seeking AWESOMENESS! If you're good at what you do, you can work anywhere. If you're the best at what you do, come work at Innophase IoT!

We're seeking a Senior Staff Firmware Engineer to join our collaborative team in developing robust and reliable firmware for next-generation IoT devices. In this role, you will develop firmware, device drivers, and support system integration efforts for ULP IoT solutions, focusing on performance, reliability, and maintainability. Experience with TrustZone and Trusted Firmware-M (TF-M) is required.

Key Responsibilities:

  1. Design and develop embedded firmware for IoT devices, targeting ARM Cortex-M microcontrollers
  2. Experience with ARM TrustZone and Trusted Firmware-M (TF-M) for secure firmware partitioning desired
  3. Implement and optimize low-level drivers and integrate with hardware abstraction layers (HAL)
  4. Develop secure boot and firmware update mechanisms, ensuring robust and reliable device operation
  5. Collaborate with cross-functional teams (hardware, software, security) to define and implement firmware features
  6. Debug, test, and validate firmware on target hardware, using J-Link, Oscilloscope, and logic analyzers
  7. Contribute to documentation of firmware architecture, design decisions, and implementation details
  8. Focus on security system design, including secure boot and trusted execution environments
  9. Manage memory partitioning and isolation in ARM Cortex-M microcontrollers
  10. Implement secure OTA updates and lifecycle management for IoT devices

Requirements:

  • Bachelor's or master's degree in electrical engineering, computer engineering, or a related field
  • 10+ years of experience in embedded firmware development for IoT or embedded systems
  • Strong proficiency in C/C++ and low-level driver development
  • Familiarity with RTOS environments (e.g., FreeRTOS, Zephyr)
  • Hands-on experience with hardware bring-up and debugging tools
  • Excellent communication and collaboration skills
  • Strong problem-solving skills and attention to detail
  • Willingness to learn and contribute to a team-focused environment

We bring together the best in technology, drive innovation to create the best ULP wireless IoT solutions and user experiences in home, building, industrial automation, and wearables. We create career opportunities across a wide range of locations and disciplines and are at the forefront of change, thanks to our remarkable people who bring cutting-edge products and solutions to our customers. If you share our passion for teamwork, our vision to revolutionize the IoT industry, and our goal to lead the future in technology, we want you to fast-forward your career at Innophase IoT.

We are committed to unleashing the potential in every employee, team, and leader. We believe employees perform best when motivated, appreciated, and recognized, and when they can be themselves. We aim to build a culture where every voice is heard, everyone has room to grow, and everyone can make meaningful contributions. Ultimately, our goal is success not just for the company but for everyone who believes in our vision and future.

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