You will get bug fixer, fix bugs, deploy mern, react, node, nextjs app in 24 hours
Project details
đ Hi there! đFacing issues or bugs? Need to deploy your MERN stack app? I'm a Full Stack Developer with 3+ years of experience in fixing bugs and deploying React applications. Whether it's fixing React bugs, fix MERN app bugs, or handling Node installations, I can efficiently resolve your issues and deploy your app on any hosting or VPS, including AWS.
I offer rapid bug fixing to ensure your web app runs smoothly. I specialize in seamless deployments on AWS or other platforms, whether it's a new setup or an update. Additionally, I can help scale your app by adding features or optimizing existing ones.
đ What I Offer:
â„Bug Fixing: Swift resolution of MERN stack app issues or any design or HTML issue
â„Deployment: Expert deployments on AWS or other platforms.
â„Enhancements: Adding features or scaling your app as needed.
Skills:
â„Frontend: React js, Next js, Redux, TypeScript, HTML CSS, Bootstrap, Tailwind CSS
â„Backend: Node js, Express js
â„Database: MongoDB, PostgreSQL, MySQL
â„APIs: RESTful API, JWT, Firebase, Social Login
â„DevOps: CI/CD, GitHub Actions, Docker, WHM, cPanel, Apache, Nginx
â„Payments: Stripe, PayPal, others gateway as well
I offer rapid bug fixing to ensure your web app runs smoothly. I specialize in seamless deployments on AWS or other platforms, whether it's a new setup or an update. Additionally, I can help scale your app by adding features or optimizing existing ones.
đ What I Offer:
â„Bug Fixing: Swift resolution of MERN stack app issues or any design or HTML issue
â„Deployment: Expert deployments on AWS or other platforms.
â„Enhancements: Adding features or scaling your app as needed.
Skills:
â„Frontend: React js, Next js, Redux, TypeScript, HTML CSS, Bootstrap, Tailwind CSS
â„Backend: Node js, Express js
â„Database: MongoDB, PostgreSQL, MySQL
â„APIs: RESTful API, JWT, Firebase, Social Login
â„DevOps: CI/CD, GitHub Actions, Docker, WHM, cPanel, Apache, Nginx
â„Payments: Stripe, PayPal, others gateway as well
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included $50
These options are included with the project scope.
$50
- Delivery Time 1 day
- Number of Revisions Unlimited
- Bug Investigation
- Fix Documentation
- Detailed Code Comments
7 reviews
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MK
Mr M B K.
Aug 22, 2026
Fix AI Agent Message Response Issue - Nodejs, Nextjs & OpenAI
Really impressed with the work. The issue was identified quickly, and the fix was handled with a thoughtful approach. Communication was easy throughout the project, and everything was completed on time with great attention to detail. The final result exceeded expectations, and Iâd gladly work together again.
MK
Mr M B K.
Aug 18, 2026
AI SaaS project bug fixing
I had a great experience working with Mithun. He understood the project requirements quickly and handled the AI SaaS development and bug fixes with a strong understanding of both frontend and backend development. He was easy to communicate with, paid attention to the details, and made sure everything was working properly before wrapping things up. I really appreciated his approach to solving problems and keeping the project moving forward. Iâd be happy to work with him again on future projects.
MK
Mr M B K.
Aug 12, 2026
Full Stack Mern Developer - React/Nextjs, Nodejs, ExpressJs, MongoDb/PostgreSQL
Great experience working with Mithun on our AI hiring SaaS platform. He handled full-stack development, automated interviews, AI-powered candidate screening and evaluation, dashboards, and workflow automation. His React/Next.js, Node.js, and AI integration skills were excellent. Reliable, responsive, and highly recommended for AI SaaS development.
JO
Joel O.
Jul 16, 2025
Full Stack Dev - React/NextJS
DL
Diane L.
Jul 12, 2025
Full Stack Event Management WebApp Development
Job has been done as required and on time. so thank you. we are cheking to see for the next one
About Mithun
AI Agents Developer | LLM SaaS | Production AI Solutions
100%
Job Success
Dhaka, Bangladesh - 2:20 am local time
What I deliver:
â AI Agents & Multi-Agent Systems (autonomous 24/7 automation)
â LLM/RAG Applications (custom knowledge bases, intelligent chatbots)
â AI SaaS Products (billing, RBAC, team management, multi-tenant architecture)
â AI Automation Workflows (lead qualification, SEO publishing, appointment automation)
Before development, I design your AI strategy architecture, tech stack, roadmap, and realistic budget so you avoid expensive pivots and build the right thing first.
Tech Stack: Python | LangChain | OpenAI API | RAG | Prompt Engineering | Node.js | React.js | Next.js | AWS
PRODUCTION WINS (Real Client Results):
1. AI Hiring SaaS Platform: Automated recruitment
Reduced hiring cycle by 50% | 24/7 interview automation
Built: Recording, playback, bias-free screening, parallel processing
2. Multi-Agent SEO Engine: 6 synchronized agents
Automated daily SEO publishing | 23 schema types | 30+ language support
Fact-checking AI built-in
3. Chat SEO SaaS: Google Search Console intelligence
Replaced 5 SEO tools into 1 platform | Live GSC integration
Full SaaS with billing, teams, affiliate tracking
4. Appointment AI Platform: Lead qualification automation
AI DM screening (Instagram/social) â booked calls
Multi-channel routing | ROI calculator | Full SaaS infrastructure
Next step: Share your requirements, existing architecture, or product idea. I'll outline the recommended approach, tech stack, and timeline before we start.
đ Response time: Less than 1 hour | 5-star reviews | 50+ shipped projects
Steps for completing your project
After purchasing the project, send requirements so Mithun can start the project.
Delivery time starts when Mithun receives requirements from you.
Mithun works on your project following the steps below.
Revisions may occur after the delivery date.
Gather Requirements & Analysis the Requirements
Start Fixing or deploy the project