Delta Electronics Americas · 6 hours ago
Firmware Engineer – Liquid Cooling
Onsite
Full-time
Onsite
Mid Level
3+ years expDelta Electronics Americas is a global leader in switching power supplies and thermal management products. They are seeking a Firmware Engineer to develop and maintain embedded firmware for their Coolant Distribution Unit platform, focusing on reliable control and monitoring functions while collaborating with hardware and system integration teams.
Electrical Distribution
Responsibilities
Develop embedded firmware on STM32 (bare-metal/RTOS as applicable) for CDU control functions (pump/fan control, sensor acquisition, alarms, interlocks)
Implement and maintain Modbus RTU/TCP communication, register maps, and diagnostics to support HMI/PLC/SCADA integration
Design and implement peripheral drivers and board support: I2C/SPI/UART/RS-485/ADC/PWM/GPIO/Watchdog
Define and verify control logic and fault handling (over-temp, low-flow, leak detect, dry-run prevention, sensor failover)
Support manufacturing test and bring-up: production programming, calibration flows, self-test/BIST, and test fixtures
Debug issues across HW/FW boundary; perform root-cause analysis and drive corrective actions
Maintain engineering documentation (requirements, design notes, interface specs, test evidence) and support traceability
Qualification
Required
Bachelor's degree in EE/CE/CS or equivalent practical experience
3+ years experience in embedded firmware development
Strong programming skills in C (and familiarity with embedded debugging)
Hands-on experience with STM32 (or similar MCU) and common peripherals
Experience with serial communication and fieldbus protocols (RS-485 preferred)
Comfortable using Git, issue tracking, and basic CI/build systems
Debug issues across HW/FW boundary; perform root-cause analysis and drive corrective actions
Maintain engineering documentation (requirements, design notes, interface specs, test evidence) and support traceability
Preferred
Experience with CDU / thermal / liquid cooling / industrial control
Deep experience with Modbus RTU/TCP, register definition, timing/robustness, and interoperability testing
Experience with RTOS (e.g.Azure RTOS) and real-time constraints
Familiarity with safety/quality processes (e.g., coding guidelines, static analysis, unit tests, traceability)
Experience with motor control or actuator control (pump/fan speed control, tach feedback, PID)
Fluent in Mandarin
Company
Delta Electronics Americas
Delta, founded in 1971, is a global leader in switching power supplies and thermal management products with a thriving portfolio of smart energy-saving systems and solutions in the fields of industrial automation, building automation, telecom power, data center infrastructure, EV charging, renewable energy, energy storage and display, to nurture the development of smart manufacturing and sustainable cities.
201-500 employees
H1B Sponsorship
Delta Electronics Americas has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (30)
2024 (7)
2023 (6)
2022 (8)
2021 (5)
2020 (6)
Funding
Current Stage
Growth StageLeadership Team
Han Monica
Americas Chief Human Resources Officer
Victoria Moffat
People Partner
Company data provided by crunchbase