I will build custom software solutions for your business

K
kanenguyendev
K
kanenguyendev
Nguyen K
build custom software solutions for your business
Full Screen
build custom software solutions for your business

About this gig

What I can help you with:

  • Custom software development
  • Web applications
  • SaaS platforms
  • Business automation
  • System architecture
  • Performance optimization
  • Third-party integrations
  • Bug fixing and maintenance
  • Existing system improvements

Why work with me?

  • Clean, maintainable, and scalable code
  • Strong focus on performance and reliability
  • Clear communication throughout the project
  • On-time delivery
  • Long-term support if needed

  • Programming language

    • Ruby/RoR

  • Expertise

    • Algorithms & Data structures
    • Debugging
    • Performance
    • Operating systems
    • Databases

  • Frontend framework

    • React.js

  • Backend framework

    • Express.js
    • FastAPI
    • NestJS
    • Next.js
    • Other

  • AI & low/no code builders

    • Claude
    • Cursor

Get to know Nguyen K

Nguyen K

Backend Team Lead

  • FromVietnam
  • Member sinceMar 2026

  • Languages

    English, Vietnamese
I am a Backend Engineer with almost 5 years of experience in building scalable fintech and payment systems using Ruby on Rails. I specialize in designing RESTful APIs, integrating payment providers, and leading engineering teams to deliver high-performance, secure, and reliable systems.

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