You will get Expert React & JavaScript Developer | Fix Bugs & MERN Web Forms
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Project details
Do you need your React or MERN web application fixed or functional web forms implemented quickly and reliably?
I am a Senior React & MERN Developer with 7+ years of experience fixing bugs and building high-performance web forms for startups and businesses.
What I will do for you:
• Fix React / JavaScript bugs
• Implement MERN stack web forms
• Validate forms & handle errors
• Responsive & modern frontend
• Connect forms to backend / APIs
• Optimize performance & functionality
• Debug existing issues in your app
Why clients hire me:
• Fast and reliable bug fixes
• Clean, maintainable code
• Clear communication & on-time delivery
• Production-ready solutions
Whether you need a single web form, multi-step forms, or bug fixes in your React/MERN app, I will deliver a professional solution.
Message me before ordering so we can review your project and requirements.
I am a Senior React & MERN Developer with 7+ years of experience fixing bugs and building high-performance web forms for startups and businesses.
What I will do for you:
• Fix React / JavaScript bugs
• Implement MERN stack web forms
• Validate forms & handle errors
• Responsive & modern frontend
• Connect forms to backend / APIs
• Optimize performance & functionality
• Debug existing issues in your app
Why clients hire me:
• Fast and reliable bug fixes
• Clean, maintainable code
• Clear communication & on-time delivery
• Production-ready solutions
Whether you need a single web form, multi-step forms, or bug fixes in your React/MERN app, I will deliver a professional solution.
Message me before ordering so we can review your project and requirements.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included $280
These options are included with the project scope.
$280
- Delivery Time 3 days
- Number of Revisions Unlimited
- Bug Investigation
- Detailed Code Comments
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UA
Umid A.
Jun 12, 2026
Web Developer Needed for Corporate Course Selling Platform
very good person and skilled developer
CS
Chadi S.
May 6, 2026
Build MVP SaaS for AI-Powered Proposal Generation
AM
Ali M.
Apr 30, 2026
Developer Needed for Proof of Concept (POC)
Yasir conducted himself professionally throughout the project, and the work completed met expectations. While we encountered some hiccups that led to scope changes and extended timelines, both parties reached a mutual agreement to pause and resume work in the future. I would recommend Yasir and his team.
AK
Abhishek K.
Apr 22, 2026
Discussion discussion ai agents
Great experience working together. Provided useful consultation on the platform’s workflow and developer experience. Clear communication and valuable insights, would definitely collaborate again.
SM
Silvia M.
Apr 16, 2026
Test Task - Automation Systems Operator
About Yasir
Full-Stack Developer | AI Development & Automation | n8n, LLM, Agents
97%
Job Success
Karachi, Pakistan - 5:29 am local time
As a 𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 𝐏𝐥𝐮𝐬 𝐅𝐫𝐞𝐞𝐥𝐚𝐧𝐜𝐞𝐫, I represent the top 1% of talent on Upwork, with a proven track record of delivering complex, high-stakes systems for global clients. Stop managing manual workflows and start scaling with intelligent systems. If your product requires robust Full-Stack Development, AI Integration, or Business Automation that performs in real-world environments, you need a systems architect.
I build production-ready software designed to eliminate manual bottlenecks, streamline operations, and scale alongside your business.
- Full-Stack Development: Scalable architecture using the MERN/PERN stack, Next.js, and TypeScript.
- AI & LLM Implementation: Custom AI Agents, RAG systems, and API integrations with OpenAI (GPT-4o), Claude 3.5, and Gemini.
- Workflow Automation: Building "Second Brain" systems and lead pipelines using n8n, Make, and Zapier to connect your entire tech stack.
- Backend & API Architecture: High-performance server-side logic with Node.js (NestJS/Express) and Python (FastAPI/Django).
- DevOps & Deployment: Secure, containerized environments using Docker, Kubernetes, and AWS.
𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐒𝐭𝐚𝐜𝐤:
- Frontend: React.js, Next.js (App Router), Tailwind CSS, Redux.
- Backend: Node.js, TypeScript, Python, NestJS, FastAPI, Django.
- Databases: PostgreSQL, MongoDB, Supabase, Redis, Pinecone (Vector DB).
- AI/ML: LangChain, OpenAI API, Anthropic, Vector Embeddings, Custom LLM Workflows.
- Automation: n8n, Make dot com, Zapier, Cron Jobs, Webhooks.
- Infrastructure: AWS (EC2, S3, Lambda), Docker, Kubernetes, CI/CD.
- FinTech: Stripe Integration (Subscriptions, Connect, Webhooks).
𝐖𝐡𝐲 𝐏𝐚𝐫𝐭𝐧𝐞𝐫 𝐖𝐢𝐭𝐡 𝐌𝐞?
Business owners don't just need "code" they need reliability. I ensure your software is maintainable, your data is secure, and your automations actually save time. I treat every project as a partnership, focusing on clear communication and technical excellence.
Ready to automate your growth? Click "𝐈𝐧𝐯𝐢𝐭𝐞 𝐭𝐨 𝐉𝐨𝐛" or "𝐒𝐞𝐧𝐝 𝐌𝐞𝐬𝐬𝐚𝐠𝐞" to discuss your project architecture and how we can turn your vision into a scalable reality.
Steps for completing your project
After purchasing the project, send requirements so Yasir can start the project.
Delivery time starts when Yasir receives requirements from you.
Yasir works on your project following the steps below.
Revisions may occur after the delivery date.
Send your scope and requirement for the project.
What are your priorities regarding this project and if you are coming here to revamp your existing project please provide existing code.