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wangqi
@null28422
Java Backend Developer Spring Boot Microservices API Integration
China
Chinees
Over mij
Senior Java Backend Developer with 10+ years of experience in enterprise systems, microservices, and data integration. I help clients build, fix, and scale reliable backend services.
What I offer:
• Spring Boot/Cloud microservices & REST APIs
• Bug fixing, SQL tuning, performance optimization
• MQTT/Kafka/IoT data integration & government/third-party reporting
• Redis, MySQL/Oracle, ShardingSphere, XXL-JOB, Seata
I use AI tools to speed up delivery and ensure clear written communication.
Skills
wangqi
offline •
Bekijk mijn diensten
Full stack webapplicaties
I will java, spring boot, spring cloud, microservices, rest API, mqtt, dubbo
Websites op maat
I will build a full stack web app with java spring boot and react
Portfolio
Werkervaring
Software Development
ZZP • 8 yrs 4 mos
Java Developer
May 2022 - Sep 2026 • 4 yrs 4 mos
Led backend development for a smart construction safety platform serving multiple provinces. Built an MQTT + Kafka pipeline ingesting IoT data from tower cranes and elevators, designed a multi-platform reporting middleware using XXL-JOB and SHA256/AES encryption, and implemented ShardingSphere sharding with Redis distributed locks.
Java Developer
Feb 2018 - Feb 2022 • 4 yrs
Main developer and core team lead for an Emergency & Critical Care Process Management System. Designed the emergency workflow engine using Activiti 5, connecting 120 vehicle terminals, hospital PC/mobile apps, and the National Chest Pain Center reporting platform. Supported hospitals in passing national certification.
Java Developer
iSoftStone Information Technology • Fulltime
Oct 2016 - Jan 2018 • 1 yr 3 mos
Developed core modules for trust and water utility fund systems. Optimized batch clearing and income accrual algorithms, and integrated UFIDA financial system for automatic voucher conversion.
