c
china_lqh

lihaiqing

@china_lqh

Java development engineer

Chine
Anglais
Certaines informations sont présentées en anglais.
À propos de moi
I help businesses build reliable Java backend systems — APIs, microservices, database optimization, and cloud deployment With 10+ years of independent development, I've delivered multiple projects from scratch: e-commerce order integration, IoT device platforms, workflow systems, and monitoring tools  What I can do for you: • Build Spring Boot / Spring Cloud applications • Design and optimize MySQL, Redis, Elasticsearch • Integrate third-party APIs (payment, logistics, e-commerce) • Build IoT platforms with Kafka, Netty, MQTT I focus on clean code, clear communication, and delivering on time... Plus d’infos

Compétences

c
china_lqh
lihaiqing
hors ligne • 
Temps de réponse moyen de 1 heure

Voir mes services

Applications Web Full stack
I will oa erp CRM and ecommerce systems
De100 $US / projetPlus de détails

Expérience professionnelle

New_HOPE

Java development engineer

New HOPE • Temps plein

Apr 2018 - Oct 2026 • 8 yrs 6 mos

Java Backend Developer — E-commerce Order Integration Platform Built order synchronization and splitting system integrating Douyin, Tmall, JD, SF Express, ZTO Used Factory Pattern to handle different platform order formats Implemented shipping integration with SF Express, Douyin, JD Cloud Warehouse Tech: Spring Boot, MyBatis-Plus, Redis Cluster, Kafka, K8s IoT Platform Developer — Device Management System Built platform supporting HTTP, TCP, MQTT protocols for 100k+ devices Set up Kafka + Zookeeper cluster for high-availability messaging Configured Redis master-slave + Sentinel for high availability Deployed with Jenkins + Docker + K8s for auto-scaling Tech: Spring Boot, Netty, Elasticsearch, Kafka, K8s Full-stack Developer — Automation Monitoring System Developed device monitoring and remote control system with Socket communication Built dynamic report generation with POI Implemented Quartz scheduled tasks for device interaction Tech: Spring, Spring MVC, Spring Data JPA, Shiro, Layui Java Developer — Workflow & Office Management System Built reimbursement, leave, and rental approval workflows with Activiti Implemented dynamic form and signature insertion with POI Tech: Spring Boot, MyBatis, Spring Security, Activiti