I will be your full stack developer

H
haopengxu
H
haopengxu
Haopeng X
be your full stack developer
Full Screen
be your full stack developer
Full Screen
be your full stack developerbe your full stack developer

About this gig

Are you looking for a robust, scalable, and secure web application or backend system?

I am a senior full-stack software engineer with 8 years of professional experience, specializing in C#, ASP.NET Core, JavaScript/TypeScript, React, and Vue. Having developed complex enterprise microservices and high-volume data pipelines for a leading global aerospace corporation, I know how to deliver production-ready software that scales.


What I Offer

  • Backend Development: High-performance RESTful APIs and microservices using ASP.NET Core and Clean Architecture.
  • Full-Stack Solutions: Seamless integration of modern frontends (React or Vue) with robust .NET backends.
  • Database Design: Optimized schemas and query performance tuning in PostgreSQL, MySQL, and Cosmos DB.
  • Architecture & Refactoring: Implementing Domain-Driven Design (DDD) and CQRS patterns to modernize systems.


Why Choose Me?

  • Extensive real-world experience building mission-critical enterprise applications.
  • Strict adherence to best practices, clean code, and maintainable architectures.
  • Clear communication and reliable delivery timelines.


Please send me a message before placing an order to discuss your project requirements!

  • Programming language

    • C#

  • Expertise

    • Algorithms & Data structures
    • Debugging
    • Performance
    • Design
    • Databases

  • Frontend framework

    • jQuery
    • Next.js
    • React.js
    • Vue.js
    • Blazor

  • Backend framework

    • Django
    • FastAPI
    • ASP.NET Core

Get to know Haopeng X

Haopeng X

Full Stack Developer

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

  • Languages

    Chinese, English
I am a Full Stack Developer with extensive experience in .NET, C#, and Python. I specialize in architecting microservices, designing data processing pipelines using Clean Architecture, and engineering AI Agents with RAG to automate complex data analysis. I have a proven track record of optimizing system performance and delivering high-impact solutions in the aerospace and construction technology sectors.

My Portfolio

Related tags