Sr. Firmware Developer

Position Overview

We are seeking an experienced and hands-on Senior Firmware Engineer to lead the design, development, and optimization of low-power, connected firmware for our next-generation IoT devices. In this role, you will architect secure, scalable, and resilient embedded software that bridges edge hardware with cloud infrastructure.

You will work closely with hardware engineers, systems architects, and cloud teams from initial board bring-up through volume manufacturing and field deployment.

Key Responsibilities

• Firmware Architecture & Development: Design, code, and maintain production-grade C/C++ firmware for resource-constrained microcontrollers (ARM Cortex-M, ESP32, RISC-V, etc.).
• IoT Connectivity & Protocols: Implement and optimize low-power wireless communication stacks, including Wi-Fi, BLE, Cellular (LTE-M/NB-IoT), Thread/Zigbee, and application protocols such as MQTT, CoAP, and HTTP/HTTPS.
• Hardware Bring-Up & Driver Development: Write low-level device drivers for peripherals (I2C, SPI, UART, ADC, PWM, DMA, flash memory) and collaborate with hardware teams during board bring-up and debugging.
• Power Optimization: Analyze and implement aggressive power management strategies (sleep modes, duty cycling, peripheral management) to maximize battery longevity for edge devices.
• Security & OTA Updates: Implement hardware-root-of-trust security features (secure boot, TLS, cryptographic acceleration, key management) and robust over-the-air (OTA) firmware update mechanisms.
• System Integration & Testing: Utilize RTOS platforms (FreeRTOS, Zephyr, or embedded Linux) to write multithreaded applications; conduct hardware-in-the-loop (HIL) testing and automated regression testing.
• Lifecycle & Manufacturing Support: Support factory test fixture development, diagnostic firmware creation, and mass production testing protocols.
• Mentorship & Process: Drive code reviews, enforce coding standards (e.g., MISRA C), write technical documentation, and mentor junior and mid-level firmware engineers.

Qualifications & Requirements

• Education: Bachelor’s or Master’s degree in Electrical Engineering, Computer Engineering, Computer Science, or equivalent experience.
• Experience: 5+ years of professional experience developing embedded C/C++ firmware for commercial IoT or edge devices.
• RTOS Expertise: Proven experience using real-time operating systems (FreeRTOS, Zephyr, ThreadX, or similar) for multi-tasking architectures.
• Protocol Proficiency: Hands-on experience with wireless technologies (Wi-Fi, BLE, Cellular IoT, LoRaWAN) and network security standards (mTLS, AES, RSA, ECC).
• Hardware Debugging: Proficient with hardware lab equipment, including oscilloscopes, logic analyzers, digital multimeters, JTAG/SWD debuggers, and power profilers.
• Tooling & Version Control: Advanced proficiency with Git, CMake/Make, GCC, CI/CD pipelines for embedded builds, and static analysis tools.
• Work Authorization: Must be authorized to work in the United States now and in the future without sponsorship. Sponsorship will not be provided for this role

Preferred / Nice-to-Have Skills

• Experience with Zephyr RTOS and modern meta-build systems (West/CMake).
• Exposure to embedded security architectures (ARM TrustZone, Secure Elements/TPMs).
• Familiarity with Python for test automation and scripting.
• Prior experience delivering high-volume consumer electronics or industrial IoT products from concept to mass production.
• #LI-Hybrid
• #LI-KC2
• Our Commitment to Our People

Additional information

Across the globe, we are united by a singular Purpose: Sustainability is no small ambition. That’s why everything we do is geared toward a sustainable future—for our generation and all those to come. Through groundbreaking innovations, HVACR technology and cold chain solutions, we are reducing carbon emissions and improving energy efficiency in spaces of all sizes, from residential to commercial to industrial.

Our employees are our greatest strength. We believe that our culture of passion, openness, and collaboration empowers us to work toward the same goal - to make the world a better place. We invest in the end-to-end development of our people, beginning at onboarding and through senior leadership, so they can thrive personally and professionally.

Pay and benefits

Flexible and competitive benefits plans offer the right options to meet your individual/family needs: medical insurance plans, dental and vision coverage, 401(k) and more. We provide employees with flexible time off plans, including paid parental leave, vacation and holiday leave.

Together, we have the opportunity – and the power – to continue to revolutionize the technology behind air conditioning, heating and refrigeration, and cultivate a better future. Learn more about us and how you can join our team!

Our Commitment to Inclusion & Belonging

At Copeland, we cultivate a strong sense of inclusion and belonging where individuals of all backgrounds, and with diverse perspectives, are embraced and treated fairly to enable a stronger workforce. Our employee resource groups play an important role in culture and community building at Copeland.

Work Authorization

Copeland will only employ those who are legally authorized to work in the United States. This is not a position for which sponsorship will be provided. Individuals with temporary visas such as E, F-1 with OPT or CPT, H-1, H-2, L-1, B, J or TN, or who need sponsorship for work authorization now or in the future, are not eligible for hire.