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I will build for fix next js gatsby websites for web application using mern, developer
Caleb Klaudla
About this gig
Looking for a reliable developer to build, migrate, or fix your modern web application?
I specialize in MERN stack, Next.js, Gatsby, React, Node.js, and headless CMS development. I build fast, responsive, scalable websites and full-stack applications tailored to your business needs.
I can help with:
Custom MERN and full-stack web applications
Next.js and Gatsby website development
React frontend development
Node.js, Express, and Nest.js backend development
Deployment with Vercel, Netlify, Cloudflare, AWS, or VPS
Bug fixing, SSR, hydration, authentication, forms, and CMS issues
Database integration with MongoDB, PostgreSQL, MySQL, MSSQL, and Supabase
My technology stack includes React, Next.js, Gatsby, Node.js, TypeScript, Tailwind CSS, Payload CMS, Strapi, MongoDB, PostgreSQL, Supabase, and modern API technologies.
Whether you need a website built from scratch, an existing application migrated, a CMS configured, or a technical issue fixed, I can help turn your requirements into a clean, functional, and scalable solution.
Send me your project details, existing website, repository, or requirements, and let's discuss the best approach before you place your order.
Get to know Caleb Klaudla
Caleb Klaudla
Systems built for growth efficiency and scalability
- FromNigeria
- Member sinceApr 2026
- Avg. response time1 hour
Languages
English, French, Estonian, Chinese, German, Luxembourgish, Italian, Norwegian, Norwegian Bokmål, Norwegian Nynorsk, Spanish, Galician, Sudanese, Armenian, Bambara
Hi, I'm Caleb.
I help businesses, coaches, and creators build smarter digital systems through automation, AI solutions, video editing, and client management platforms. My expertise includes Selenium automation, business process automation, Penclaw/OpenClaw AI solutions, professional video editing, and Trainerize setup for fitness professionals.
I create reliable, scalable, and user-friendly solutions that save time, improve workflows, and enhance customer experiences. Whether you need automation, content support, or a better digital system, I can help bring your ideas to life.
My Portfolio
Other Software Development Services I Offer
FAQ
Why should I choose MERN stack for my project?
MERN offers a complete JavaScript environment from front-end to back-end, enabling faster development and real-time data handling. It’s ideal for building modern web applications with high performance.
What’s included in your Full Stack MERN Development service?
My service covers the entire development process, including setting up databases (MongoDB), back-end APIs (Node.js & Express.js & Nest.js), and front-end interfaces (React.js & Next.js), as well as deployment, integration, and testing.
How long does it take to develop a full-stack MERN web app?
The timeline depends on the complexity of your project, but typically it takes anywhere from 2 to 6 weeks. I’ll provide a clear timeline after reviewing your requirements.
What do you need from me to get started on the Full Stack web project?
To get started, I'll need a clear understanding of your project goals, preferred technologies, and any existing assets you may have (like a design, prototype, or current codebase). Additionally, it’s important to have a defined
Can I request changes after the project is complete?
Absolutely! You can request changes or feature additions after completion, and I’ll ensure they are implemented according to your requirements.
