Duties, Responsibilities & Authorities:
? Develop software and firmware for elevator Door or Drive operator, also including function test, unit test, stress test and regression test etc.
? Embedded code development, maintenance, validation, and release following a structured engineering process to ensure product quality and reliability.
? Conduct detail troubleshooting and software/firmware debugging to determine the root causes and recommend mistake proofing solutions.
? General software support, including conducting software test work in test towers or jobsites.
? Creation of software and firmware detailed documentation, including requirement specifications, design documentation, test plan and report, software releasing documentation, user’s manuals, etc.
? Perform other duties as assigned and requested.

Work experience & skills requirements:
? Minimum of 3 years’ experience on embedded software development.
? Strong kills and knowledge in software and firmware engineering, an experience and effective team player.
? Familiar with embedded system firmware development cycles, firmware quality assurance process and regression test development.
? Programming experience with test equipment, such as oscilloscope, multi-meter, Can-Analyser etc.
? Good knowledge of digital circuit, DSP/MCU, RS232, RS422/485, I2C, SPI, CAN, etc.
? Familiar with converter control and inverter control, especially the regenerative control, three phase PFC/single phase PFC control.
? Good understanding about position control, velocity control, current control, S curve and flux weakening control are preferred.
? Good understanding about fixed-point, floating-point operation, SPWM, SVPWM, two-level &.three level PWM are preferred.
? CET-4 and above.