You will get Bugfixing in React JS and Node JS | Typescript
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Project details
Resolving bugs in your MERN stack application using TypeScript! I specialize in pinpointing and fixing issues across the entire stack—MongoDB, Express, React, and Node.js. Let's ensure a seamless, error-free experience for your users. Reach out to get your application back on track.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included $45
These options are included with the project scope.
$45
- Delivery Time 2 days
- Number of Revisions 3
- Design Customization
- Responsive Design
- Source Code
8 reviews
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SJ
Steve J.
Jun 11, 2026
Production Deployment, Ownership Transfer & System
⭐⭐⭐⭐⭐ 5 Stars
Hanzla helped me take full ownership of my SaaS platform and successfully completed a complex deployment, database migration, and integration project involving Stripe, Zoho CRM, MongoDB, and Vercel.
He was responsive, patient, and worked through issues as they were discovered during testing. Most importantly, I found Hanzla to be an honorable man who stayed committed to the project until everything was working properly.
Reliable developers with both technical skill and integrity are hard to find. I would gladly work with him again and would recommend him to anyone looking for a dependable developer. Steven Johnson - Owner of IUL Calculator Pro
Hanzla helped me take full ownership of my SaaS platform and successfully completed a complex deployment, database migration, and integration project involving Stripe, Zoho CRM, MongoDB, and Vercel.
He was responsive, patient, and worked through issues as they were discovered during testing. Most importantly, I found Hanzla to be an honorable man who stayed committed to the project until everything was working properly.
Reliable developers with both technical skill and integrity are hard to find. I would gladly work with him again and would recommend him to anyone looking for a dependable developer. Steven Johnson - Owner of IUL Calculator Pro
SJ
Steve J.
Jun 2, 2026
Long-term Next.js Developer for Insurance Platform
Even though we are in different countries and have a basic different language, H persisted and did a fantastic job. I must admit I was hesitant to hire someone from a different country; but I made the right choice with Hanzla. I do highly recommend him. He went above and beyond to make sure everything met my needs.
CR
Chanchal R.
Nov 5, 2025
Front End Developer Needed: Next.js & TypeScript with AlignUI SDK Experience
I would recommend Hanzla. He was quite sound in his skillset.
ST
Steve T.
Nov 1, 2025
React JS with Tailwind expert for long term job
Great freelancer would work with anytime!
NV
Nathan V.
Sep 26, 2025
Senior Full-Stack Developer — Next.js + Supabase + Stripe
About Hanzla
Full-Stack & AI SaaS Developer | React, Next.js, Node, TypeScript
100%
Job Success
Lahore, Pakistan - 12:54 pm local time
4+ years of experience, 1,500+ hours on Upwork, and a focus on clean, secure, scalable systems built for real users and real data.
🤖 AI Automation & AI Agents
✔ AI agents and assistants (OpenAI & Claude APIs, tool use, prompting, webhooks)
✔ n8n workflow automation, email, data pipelines, and API integrations
✔ AI features: chatbots, content generation, document processing
✔ AI-assisted development with Claude Code and Cursor (reviewed and tested, never blind)
🚀 SaaS & Full Stack Development
✔ Full SaaS apps, dashboards, authentication, multi-tenant systems
✔ MERN stack (MongoDB, Express, React, Node) plus Next.js and TypeScript
✔ Real-time features: chat, notifications, live updates
⚙️ Backend, APIs & Integrations
✔ REST API development (Node.js, Express)
✔ Stripe payments, subscriptions, and webhooks
✔ Integrations: Stripe, Gmail, Shopify, CRMs, plus secure authentication
💻 Tech Stack
Frontend: React, Next.js, React Native, TypeScript, Tailwind CSS
Backend: Node.js, Express (scalable REST APIs)
Databases: MongoDB, PostgreSQL, Supabase, MySQL
AI & Automation: OpenAI API, Claude API, Claude Code, n8n
Cloud & Tools: AWS, Vercel, Cloudinary, Railway, Git, GitHub, GitLab
🚀 What I've Built
✔ AI agents and automation workflows (Claude, OpenAI, n8n)
✔ Multi-tenant SaaS platforms with dashboards, auth, and Stripe
✔ AI-powered applications on the OpenAI/Claude APIs
✔ Real-time chat and notification systems
I don't just deliver code that works once; I deliver clean, tested, production-ready work, communicate clearly throughout, and stand behind what I build until it's running exactly as it should. Let's connect and build something reliable.
Steps for completing your project
After purchasing the project, send requirements so Hanzla can start the project.
Delivery time starts when Hanzla receives requirements from you.
Hanzla works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement Analysis & Proposal Submission
Understand client needs, propose a detailed project plan, and gain client approval.
Concurrent Backend-Frontend Development
Develop backend using Node.js, Express, TypeScript, and frontend using React.js in parallel.