I will fix and debug website and mobile


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
- FromVietnam
- Member sinceJul 2025
- Avg. response time1 hour
Languages
Vietnamese, English
FAQ
how quickly can you fix my issue?
Simple UI/logic bugs can usually be fixed within a few hours to 1 day. Please contact me first for an exact timeline estimate.
What information do you need to start?
Please provide a description of the error, screenshots/console logs, and access to your codebase (GitHub/GitLab or a ZIP file) if applicable.
What if the issue cannot be resolved?
If for any technical reason the issue cannot be resolved on my end, you will receive a 100% full refund.

