You will get React or Next.js bug fixes for your existing web application
Project details
I fix React and Next.js bugs without turning a small issue into a full rebuild.
I can help with UI and responsive problems, broken state or logic, API/data issues, authentication and routing bugs, performance problems, and errors in existing codebases.
My approach is simple: reproduce the issue, find the root cause, make the smallest reliable fix, test the affected flow, and explain what changed.
I work with React, Next.js, JavaScript/TypeScript, Node.js, Supabase/PostgreSQL, APIs and Tailwind CSS.
If you already have a bug, error message or broken flow, send me the details and I can quickly tell you whether it fits this project.
I can help with UI and responsive problems, broken state or logic, API/data issues, authentication and routing bugs, performance problems, and errors in existing codebases.
My approach is simple: reproduce the issue, find the root cause, make the smallest reliable fix, test the affected flow, and explain what changed.
I work with React, Next.js, JavaScript/TypeScript, Node.js, Supabase/PostgreSQL, APIs and Tailwind CSS.
If you already have a bug, error message or broken flow, send me the details and I can quickly tell you whether it fits this project.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included
| Service Tiers |
Starter
$75
|
Standard
$150
|
Advanced
$300
|
|---|---|---|---|
| Delivery Time | 1 day | 2 days | 3 days |
Number of Revisions | 1 | 2 | 3 |
Number of Pages | 1 | 3 | 5 |
Design Customization | - | - | |
Content Upload | - | - | - |
Responsive Design | |||
Source Code |
Optional add-ons
You can add these on the next page.
Additional Revision
+$25
Additional Page
(+ 1 Day)
+$35
Design Customization
(+ 1 Day)
+$50Frequently asked questions
About Arsenii
Full-Stack Developer | React, Next.js, Python, PHP & APIs
Durres, Albania - 7:36 am local time
My main stack is React/Next.js, JavaScript/TypeScript, Python, PHP, Supabase/PostgreSQL and REST APIs.
Recent work includes TiaRental, a multi-vendor car rental marketplace with booking, payments and vendor/admin dashboards, and RedLotusTour, a multilingual tour platform built around responsive booking and content flows.
I also work with browser automation, data processing, Excel/CSV workflows, OpenAI/API integrations and existing codebases that need debugging or extension.
I prefer fixing and extending what already works instead of rebuilding everything unnecessarily.
Have an existing project or specification? Send it over and I can quickly tell you where I’d start.
Steps for completing your project
After purchasing the project, send requirements so Arsenii can start the project.
Delivery time starts when Arsenii receives requirements from you.
Arsenii works on your project following the steps below.
Revisions may occur after the delivery date.
Reproduce and diagnose the issue
I’ll reproduce the bug, trace the root cause and check the affected frontend, API or state logic.
Implement the fix
I’ll make the smallest reliable change needed instead of rebuilding unrelated parts of the app.