I will fix bugs in your javascript, nodejs, react or sapui5 app

U
umangdevanshu
U
umangdevanshu
Umang D
fix bugs in your javascript, nodejs, react or sapui5 app
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fix bugs in your javascript, nodejs, react or sapui5 app

About this gig

Is your JavaScript app throwing errors, showing wrong data, or missing a feature? I can fix it.


I am a full-stack developer who works with JavaScript and TypeScript every day on a SaaS product used by enterprise customers. I also specialise in SAPUI5 / Fiori apps, which few developers here know.


I can help with:

  • JavaScript and TypeScript errors
  • Node.js and Express backend bugs
  • React component and state issues
  • SAPUI5 / Fiori views, bindings and OData models

What you get:

  • A working fix, tested before delivery
  • Clean code that fits your project style
  • A short note on the cause and what I changed

Please message me before ordering with the error, steps to reproduce, and access to the code, so I can confirm the right package.

  • Programming language

    • JavaScript

  • Expertise

    • Debugging
    • Performance
    • Databases
    • Testing procedures

  • Frontend framework

    • jQuery
    • React.js
    • SAPUI5

  • Backend framework

    • Express.js
    • Node.js

Get to know Umang D

Umang D

Full Stack JavaScript Developer, NodeJS, React and SAPUI5

  • FromIndia
  • Member sinceSep 2026

  • Languages

    Hindi, English
Hi, I am Umang, a full-stack JavaScript developer with 2+ years building a SaaS product for enterprise customers. I can help you: - Fix bugs in JavaScript, Node.js and React apps - Build REST APIs with Node.js, Express and PostgreSQL - Add features to existing web apps - Build and fix SAPUI5 / Fiori apps, a rare skill I use daily I confirm scope and price before starting, write clean tested code, and explain every change. I reply within 24 hours. Message me about your project.

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