Sr. Firmware Developer

About Us We are a global climate technologies company engineered for sustainability. We create sustainable and efficient residential, commercial and industrial spaces through HVACR technologies. We protect temperature-sensitive goods throughout the cold chain. And we bring comfort to people globally. Best-in-class engineering, design and manufacturing combined with category-leading brands in compression, controls, software and monitoring solutions result in next-generation climate technology that is built for the needs of the world ahead. Whether you are a professional looking for a career change, an undergraduate student exploring your first opportunity, or recent graduate with an advanced degree, we have opportunities that will allow you to innovate, be challenged and make an impact. Join our team and start your journey today! 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 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. 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. Equal Opportunity Employer Copeland is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to sex, race, color, religion, national origin, age, marital status, political affiliation, sexual orientation, gender identity, genetic information, disability or protected veteran status. We are committed to providing a workplace free of any discrimination or harassment. If you have a disability and are having difficulty accessing or using this website to apply for a position, please contact: