You will get Next.js, Node.js, and Vercel issues fixed
Project details
You will get a clean and practical fix for your Next.js, Node.js, or Vercel issue, with a focus on solving the actual problem instead of adding unnecessary complexity. This project is a good fit if your app has a deployment failure, runtime error, broken API flow, or another technical issue that needs fast and reliable debugging.
I work with Next.js, Node.js, JavaScript/TypeScript, and full-stack product development, and I focus on identifying the cause of the issue, applying a clean fix, and making sure the result is stable. Depending on the package, I can help with one targeted bug, a deployment-related issue, or a broader debugging pass across multiple connected problems.
The goal is not just to patch the symptom, but to get your app working again in a maintainable way.
I work with Next.js, Node.js, JavaScript/TypeScript, and full-stack product development, and I focus on identifying the cause of the issue, applying a clean fix, and making sure the result is stable. Depending on the package, I can help with one targeted bug, a deployment-related issue, or a broader debugging pass across multiple connected problems.
The goal is not just to patch the symptom, but to get your app working again in a maintainable way.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$20
|
Standard
$50
|
Advanced
$80
|
|---|---|---|---|
| Delivery Time | 2 days | 4 days | 6 days |
Number of Revisions | 1 | 2 | 3 |
Bug Investigation | |||
Fix Documentation | - | - | |
Detailed Code Comments |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$20 - $60Frequently asked questions
About Nazarii
Next.js Developer | Bug Fixes, Vercel, Stripe & OpenAI
Lviv, Ukraine - 9:00 pm local time
I help founders and small product teams diagnose Next.js and Node.js problems, repair Vercel deployments, and add focused Stripe, API, Supabase, or AI features to existing products.
My recent work includes:
- an AI nature assistant with multi-image analysis, Anthropic model routing, Netlify Functions, image processing, weather data, and automated tests
- an event platform across Next.js, Node.js, and React Native
- a Chrome extension with WebSocket audio, live transcription, and AI follow-up answers
I can help with:
- build, runtime, hydration, API, and deployment errors
- Vercel environment and production issues
- Stripe Checkout, subscriptions, webhooks, and Customer Portal
- OpenAI or Anthropic API features and structured outputs
- existing SaaS dashboards and focused product improvements
I work by reproducing the issue, reviewing the relevant code and logs, confirming scope, implementing a focused change, testing the affected flow, and leaving clear handoff notes.
Send the current setup, expected result, and any logs or screenshots. I will tell you whether the work fits a focused fix, an integration sprint, or a larger product phase.
Steps for completing your project
After purchasing the project, send requirements so Nazarii can start the project.
Delivery time starts when Nazarii receives requirements from you.
Nazarii works on your project following the steps below.
Revisions may occur after the delivery date.
Review the issue and current setup
I review your app structure, deployment setup, logs, and the exact issue to identify the most efficient fix path.
Fix the issue and test the behavior
I fix the bug, deployment problem, or app flow issue and verify that the behavior works correctly after the change.