Embedded Firmware Engineer

About Ubiquiti

At Ubiquiti Inc., we create technology platforms for Businesses, Smart Homes, and Internet Service Providers, driven by our goal to connect everyone, everywhere. To date, Ubiquiti has shipped over 100 million devices worldwide, from ISP networking products to the next generation of IT solutions. Our growth is made possible by the dedicated team of hundreds behind the scenes. From software developers and product managers to designers and strategists, Team UI is driven to achieve our common goal: Rethinking IT.

At Ubiquiti, you'll heighten your potential and broaden your horizons, all while shaping the future of connectivity.

Role Summary

As part of the PowerTech Firmware team, you'll work in a fast-paced, innovation-driven environment. We believe in challenging assumptions, breaking limitations, and creating elegant solutions to complex problems. We're not just building products—we're building what's next.

Ready to bring bold ideas to life? Join us and help redefine how the world connects.

Responsibilities

• Develop and maintain embedded firmware for power-related products.
• Design firmware for power conversion control, battery charging/discharging strategies, and relay/sensor management.
• Work closely with hardware teams and ODM partners to ensure system-level integration and reliability.
• Collaborate cross-functionally with BSP, HW, ID, Backend, Mobile, FE, PM and PA team to deliver high-quality products.
• Collaborate with cross-functional teams in product planning and development.
• Collaborate with hardware, systems, and validation teams to define specifications and ensure seamless integration.
• Document firmware design, manage source code (e.g., with Git), and participate in system testing and QA.
• Perform code reviews, ensuring best practices in coding standards.
• Participate in troubleshooting and root-cause analysis for firmware issues.
  

• Proficient in C/C development for embedded systems, including experience with bare-metal or RTOS-based firmware (e.g., FreeRTOS).
• Able to read schematics and work directly with hardware during bring-up/debug phases.
• Basic knowledge of power system safety and reliability considerations.
• Solid understanding of power electronics and battery management concepts (e.g., SOC/SOH monitoring, cell balancing, overcurrent/overvoltage protection).
• Conduct debugging and validation using tools such as oscilloscopes, logic analyzers, and JTAG debuggers.
• Experience with battery charging control (DC/DC converters) and inverter control logic (DC/AC).
• Hands-on experience with ESP32 or similar MCU platforms.
• Familiarity with Git version control.
• A genuine passion for embedded software development.
• A team player, who is very self-motivated, loves difficult challenges, and is goal driven.
• Strong communication skills, able to work both solo and in teams.

• Deep knowledge and hands-on experience with UPS architecture including rectifier, inverter, and bypass control.
• Experience with EMI/EMC considerations in firmware design.
• Experience with Battery Management Systems (BMS).
• Exposure to MATLAB/Simulink for modeling and control algorithm prototyping.
• Familiarity with digital signal processing, control theory, and implementation of PID and other control algorithms.
• Experience with digital PFC (Power Factor Correction) control (AC to DC) is a plus
• Experience developing firmware for MCU/DSP platforms used in power electronics applications.
• Experience with network stack implementation and communication protocols over TCP/IP.
• Knowledge of safety and regulatory standards relevant to power systems (UL, IEC, etc.).
• Expertise in low‑power, dynamic voltage/frequency scaling, and battery management.
• Proven experience integrating firmware with Linux‑based SoC platforms
• Skilled at defining and implementing custom communication protocols for heterogeneous systems.
• Experience with OTA updates, secure boot, and embedded security mechanisms.

• International work environment and collaboration with global development teams
• Excellent work conditions
• Competitive package: great pay, perks, and benefits
• Group insurance and health coverage
• Flexible working hours and patterns
• Complimentary drinks and snacks at the office