I will fix and debug website and mobile

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lucas_cold
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lucas_cold
Lucas N

About this gig

Welcome! Is your website or web application experiencing annoying bugs, broken layouts, or unexpected crashes? Don't worry, I am here to help you get it resolved quickly!


I am an experienced Software Developer specializing in troubleshooting, debugging, and optimizing modern web applications.


What I Can Fix for You:

Frontend Issues: React.js, JavaScript, HTML5, CSS3, TailwindCSS, Responsive Layout bugs

Backend & API Errors: C#, ASP.NET Core, REST API endpoints, routing & authentication issues

Database Issues: SQL queries, Entity Framework, database connection & migrations

Third-Party Integration: Payment gateways, webhooks, external API bugs

Performance & Security: Slow page loads, memory leaks, security patches


Why Choose This Service?

Fast turnaround time with reliable results

Clean, secure, and properly tested code

Clear explanation of what caused the bug and how it was resolved

100% satisfaction guarantee with post-delivery support


NOTE: Please message me with details or screenshots of the error before placing an order so I can assess the issue and provide the best solution!

Respect third-party rights

Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.

Get to know Lucas N

Lucas N
  • FromVietnam
  • Member sinceJul 2025
  • Avg. response time1 hour
  • Languages

    Vietnamese, English
Hi I am Lucas Cold a full stack developer with over five years of experience in building modern scalable and high performance applications for both web and mobile platforms I specialize in frontend development using Vue 3 React and Tailwind CSS backend development with Go Gin Nodejs and Firebase and cross platform mobile development using Flutter I also work with relational and NoSQL databases including MySQL SQL Server and Firestore I focus on writing clean maintainable code delivering fast results and maintaining clear communication throughout every project I have worked with clients from