Loại hình
Toàn thời gian
Hình thức
Tại văn phòng
Cấp bậc
Nhân viên
Ngành nghề
Kỹ thuật / Cơ khí
Mức lương
Thương lượng
Địa điểm
Hồ Chí Minh, Thành Phố Thủ Đức
Tổng quan
- Develop, test and maintain C/C++ firmware on ESP32 / ESP32-S3 microcontrollers for the control boards of automatic car wash stations.
- Control actuators (pumps, solenoid valves, motors, power relays) and process sensor signals over UART, SPI, I2C, GPIO, PWM and ADC.
- Build and maintain device telemetry to the monitoring platform over MQTT; set up dashboards and threshold-based incident alerts.
- Implement Wi-Fi provisioning and automatic device onboarding when new stations are installed.
- Deploy over-the-air (OTA) firmware updates with rollback; secure device communication with TLS encryption and digital certificates.
- Work with the product – application team to synchronise device state with the JETX application: opening and closing wash sessions, wash validation and reconciliation.
- Test firmware on the bench and at live stations; use logic analyzer, oscilloscope and multimeter to analyse and resolve faults.
- Support the technical team in installing, wiring, configuring and accepting electronic equipment at stations; diagnose remotely and attend site for complex incidents.
- Prepare technical documentation, troubleshooting guides and technical training for the operations team.
- Authorised to propose halting or rolling back a firmware release when a risk to station operation is detected.
- Perform other tasks as assigned.
- Education
- Graduated from college or university in Electrical – Electronics, Computer Engineering, Embedded Systems, Mechatronics, Automation or a related field.
- Able to read and understand schematics, wiring diagrams and technical documents, including documents in English.
- Knowledge and skills
- Proficient in C/C++ for embedded systems: pointers, memory management, basic object-oriented programming.
- Hands-on experience with ESP32 / ESP32-S3 or equivalent microcontrollers: GPIO, PWM, ADC, timers, interrupts (ISR), finite state machines (FSM) and FreeRTOS.
- Experience with MQTT and Wi-Fi (Station / Access Point modes, provisioning); understanding of TCP/IP at application level.
- Proficient with Git, embedded development environments (PlatformIO, ESP-IDF or equivalent) and basic measurement instruments.
- Understanding of relay control, optocoupler isolation and flyback protection for power loads.
- Preference for candidates who have implemented OTA with rollback and TLS / X.509 security, worked with device monitoring platforms (ThingsBoard or equivalent), used Python for test tooling and data processing, or have knowledge of image processing and computer vision (OpenCV).
- Experience
- At least 01 year of experience in embedded programming or IoT device development, including internships and projects with a completed product.
- Preference for candidates who have worked with multi-site device fleets or with outdoor equipment in wet environments.
Yêu cầu
- Good health, able to work at the warehouse and at business locations.
- Able to travel when required and to provide support outside working hours when an incident affects station operation.
- Soft skills
- Analytical thinking, methodical troubleshooting and persistence in finding root causes.
- Responsible, careful and honest; cooperates well with other departments.
- Proactive in learning new technologies and equipment; clear in documentation and communication.
- Occupational safety
- Strictly comply with occupational safety regulations, especially electrical safety when working on station equipment.
- Use personal protective equipment (PPE) in full.
Quyền lợi
- Income from …… – …… million VND/month, negotiable based on capability.
- Full social insurance, health insurance and unemployment insurance as regulated.
- Birthday allowance and annual team building.
Du lịchĐào tạo
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