You will get your Next.js or React app bugs fixed and optimized fast
Project details
I fix broken, slow, or messy Next.js and React apps fast. Senior engineer, clear communication, and I explain what was wrong so it doesn't happen again. Great first project to see how I work: send me the bug or the repo and I'll tell you what's going on and how quickly I can fix it. Higher tiers include a performance pass and a cleanup refactor so the app is faster and easier to maintain.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$60
|
Standard
$180
|
Advanced
$400
|
|---|---|---|---|
| Delivery Time | 1 day | 3 days | 5 days |
Number of Revisions | 3 | 4 | Unlimited |
Bug Investigation | |||
Fix Documentation | - | - | |
Detailed Code Comments | - |
Frequently asked questions
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HG
Hudson G.
Aug 12, 2026
Senior Azure Engineer - Fix Cosmos DB Throttling & Runaway Costs on Reporting Layer
Furqan is a top-tier Azure engineer. He jumped into our stack and immediately resolved our Cosmos DB throttling (429 errors) and RU spikes on our reporting layer. Beyond the quick performance wins and cost reduction, he delivered a clean, forward-thinking re-architecture plan. Fast, highly proficient with modern AI tools, and exceptional at problem-solving. Will definitely work with him long-term!
MA
Muhammad A.
Aug 11, 2026
Full-Stack Web Application Development
Working with furqan was a fantastic experience. Exceptional communication, deep technical expertise, and delivered high-quality results well ahead of schedule. Highly reliable engineer. I will definitely be working with him again on future projects.
ST
Sylas T.
Nov 8, 2024
Need senior software engineer
Rehired for a new feature on a different app, very satisfied with the delivered work, recommend freelancer!
AK
Aaron K.
Nov 1, 2024
Full-stack Engineer for a AI SAAS Application using Vercel, Next.js, Vercel AI, OpenAI API and React
Furqan is an excellent developer. He's passionate and dedicated, and any time we didn't know the answer to a problem, Furqan would do his research and come back with a thoughtful and strategic recommendation to help get us unblocked. He's a strong developer with lots of potential to grow.
ST
Sylas T.
Oct 29, 2024
Urgent AI SaaS experienced Nextjs developer needed
Happy with the quick turnaround, gonna rehire for sure... Highly recommended!
About Furqan
AI SaaS & Product Engineer | Next.js + OpenAI | Ships Fast
100%
Job Success
Rawalpindi, Pakistan - 6:02 pm local time
I build AI SaaS applications and AI features end to end. Next.js, React, Node, OpenAI and Vercel AI on the front, real backends behind them. Not a prototype that falls over the first time real users arrive. Production software.
My largest engagement on Upwork was exactly this: a full AI SaaS application built on Next.js, Vercel AI and the OpenAI API. Five stars, 215 hours, and they kept me on for months. Across my career I have shipped more than 30 projects, including generative-AI SaaS platforms, an AI interview and scoring tool, and automation pipelines that replace hours of manual work with a single click.
WHAT I BUILD
AI features added to your existing product: chat and RAG over your own data, agents and workflows, scoring and classification, document and report generation
Full AI SaaS MVPs, concept to launch: auth, the core AI workflow, database, deployment, admin
OpenAI and other model integrations wired in properly, with cost and rate limits handled
The backend work that keeps it stable: APIs, data, and performance
WHY ME I am a senior engineer with an enterprise background: large Azure environments, microservices, systems where downtime costs real money. Most people bidding AI work are bolting an API call onto a page. I build the whole thing so it holds up when the traffic is real. I also move fast, using AI-assisted development, without cutting engineering corners.
HOW IT WORKS
Tell me what you are trying to launch. I will tell you honestly whether it is a week, a month, or not worth building yet.
Fixed price for smaller features. Milestones for full builds.
Send me a message with what you have and where you want to take it, and I will tell you exactly how I would build it.
Steps for completing your project
After purchasing the project, send requirements so Furqan can start the project.
Delivery time starts when Furqan receives requirements from you.
Furqan works on your project following the steps below.
Revisions may occur after the delivery date.
Reproduce
I confirm the bug and access.
Fix
I fix it and, on higher tiers, optimize.