I will oa erp CRM and ecommerce systems

C
china_lqh
C
china_lqh
lihaiqing
oa erp CRM and ecommerce systems
oa erp CRM and ecommerce systems
Full Screen
oa erp CRM and ecommerce systemsoa erp CRM and ecommerce systems

About this gig

I am a full-stack Java developer with 8+ years of independent delivery experience. I build complete web systems frontend, backend, database, and deployment including OA, ERP, CRM, and e-commerce platforms. One developer, full delivery, clean code, on-time.

  • Programming language

    • Java

  • Expertise

    • Performance
    • Security
    • Operating systems
    • Design
    • Databases

  • Frontend framework

    • Bootstrap
    • Flutter
    • jQuery
    • React.js
    • Vue.js

  • Backend framework

    • Spring Boot

  • AI & low/no code builders

    • Cursor

Get to know lihaiqing

lihaiqing

Java development engineer

  • FromChina
  • Member sinceOct 2026
  • Avg. response time1 hour

  • Languages

    English
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

Related tags