T
TOTEX INTERNATIONAL LIMITED
EE Embedded Systems Engineer (ESS, EV Charger and Iot Systems)
Skills
Mobile DevelopmentPythonMQTT
2 months ago
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Important information
Contract type:
Permanent
Work mode:
Onsite
Published on:
31 August 2026
What they need
- Electrical and Electronics background with development experiences for ESS, ESS+EV Charger, Iot Systems
- DevOps interface and integration experiences with Servers, Services & Gateways (SMS, Map, Digital Payments, License Plate Recognition)
- Protocols RS485, CAN, I2C, SPI, CCS2, GB, OCPP, MQTT Firmware development experiences with C/C++, Python for modules, systems communication
- Hands-on Front-end, Back-end of Web and Mobile App
- Hands-on Li-ion ESS and power converter controls are important. EV charging protocols (GB, CCS2, OCPP) is a plus, however UART/RS485, CAN, SPI, I2C are essential
- Assembly / Installation experience to Utility power and HV DC (< 1000V DC EV Charger) is a plus
- Applicants with some experience to buildup server, to interface with services (SMS, Map, Payment gateway), bidirectional wireless data transfer with MQTT, User & backend operator web and webapp design are also welcome to apply
- HK Driver License is a plus
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