I will fix bugs and maintain your website or backend application

J
junaidazhar62
J
junaidazhar62
Junaid A
fix bugs and maintain your website or backend application
Full Screen
fix bugs and maintain your website or backend application

About this gig

Is your website or backend application broken or behaving unexpectedly?

I can help.


I am an experienced developer specializing in bug fixing and website maintenance for applications built with Node js Express js DotNet C sharp and Python.

Whether its a small bug, API error, performance issue, or ongoing maintenance, I will quickly identify the root cause and apply clean, reliable fixes.


What I Can Fix

  • Backend bugs and errors
  • API issues and failed requests
  • Authentication and authorization problems
  • Database errors and query issues
  • Broken features and logic bugs
  • Performance and optimization issues

Maintenance Services

  • Regular bug fixes
  • Code cleanup and refactoring
  • Dependency updates
  • Error monitoring and fixes
  • Small feature improvements

Technologies I Work With

  • Node js and Express js
  • DotNet Core and C sharp
  • Python applications
  • MongoDB MySQL PostgreSQL SQL Server


Why Choose Me

  • Fast issue diagnosis
  • Clean and safe fixes
  • Clear communication
  • Support after delivery


Please message me before placing an order so I can review the issue first.

  • Programming language

    • JavaScript

  • Expertise

    • Debugging
    • Localization
    • Performance
    • Security
    • Databases

  • Frontend framework

    • React.js
    • AngularJS
    • Bootstrap
    • Semantic-UI
    • Tailwind CSS

  • Backend framework

    • Django
    • Express.js
    • Node.js
    • Flask

Get to know Junaid A

Junaid A

Full Stack Developer Office Addins Word Excel Outlook AI and API Integrations

5.0(4)
  • FromPakistan
  • Member sinceJan 2025
  • Last delivery3 months

  • Languages

    Urdu, Punjabi, English, Hindi
Full Stack Developer with 5+ years of experience building scalable web applications, APIs, AI integrations, and Microsoft Office Add-ins. I create custom add-ins for Word, Excel, Outlook using Office.js and VSTO to extend business workflows. My stack includes React, TypeScript, .NET Core, Node.js, and Python. I build SaaS platforms, dashboards, automation, secure backend APIs. Experienced with Microsoft Graph, SharePoint, REST APIs, OAuth2, JWT, and cloud services. I focus on clean architecture, performance, and reliable integrations for modern business applications and enterprise solutions.

My Portfolio

Other Software Development Services I Offer

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