Project Lead
Kiwi Technology Inc
Achievements:
1. Software Team Leader, managing a team of 5 people (2019 ~ 2021)
2. Design Kiwi's Cloud Architecture (using Node.js / Influxdb / MongoDB / Redis / MQTT ) (2016 ~ now)
- Design KMN console (for viewing raw data) and Webhook API to push data into third-party servers.
- Design Internal datastream backbone using MQTT to allow distributed payload parsing and application-specific processing among different processes.
- Integrate Grafana into KMN Console, to enable to automatic create dashboard according to user requirement.
- Regarding a limited budget, tune InfluxDB performance to avoid memory usage too high in AWS EC2 (m4.xlarge)
- Develop a specific Grafana Datasource Plugin to access customized measurements in the InfluxDB
3. Design and implement a temperature monitoring platform to support HACCP requirement for the biggest supermarket customer in Japan (currently, this platform manages about 25K sensors and can record 500 thousand sensor data per day, 2021)
- Design proprietary data storage to store aggressive incoming data for HACCP applications. ( using Golang and Node.js), the maximal sustainability of this data storage is about 100K devices in a single machine.
- Develop a HACCP storage agent with AWS S3 service to backup and retrieve data (using Golang)
4. Design CO2 Monitoring system for the biggest supermarket customer in Japan and a professional baseball team in Chiba, Japan
- Design HACCP alarm system for temperature and CO2 alarm using mailing and line.
- Design a Web-based CO2 Kiosk system for the biggest supermarket customer in Japan and a professional baseball team in Chiba, Japan (because the CO2 data is updated every 1 minute, there are about 50K requests per minute)
5. Design Kiwi's LoRa Gateway Management System (Node.js and proprietary data storage) (2015 ~ 2016)
- Integrate LoRawAN Built-in server into the gateway
- Design Kiwi's LoRaScript to enable writing javascript plugin to process streaming packets on the gateway
6. Implement Kiwi's LoRaWAN Device Certificate (2015)
Patents:
1. METHOD AND SYSTEM FOR LONG-DISTANCE FULL-DUPLEX WIRELESS COMMUNICATION, US 10,924,254 B2, 2021
2. マルチゲートウェイ通信方法及びその無線ゲートウェイシステム , JP 6739560 B2 2020.8.12
3. 遠距離全二重無線通信方法及び通信システム, JP 6781777 B2 2020.11.4
4. MULTI-GATEWAY COMMUNICATION METHOD AND WIRELESS GATEWAY SYSTEM THEREOF, US10779352B2, 2019