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I will full stack developer, saas web app, mern react php base44, ai software developer
Jeremiah G
Level 1
1 order in queue
4.9
4.9
What people loved about this freelancer
alexx12_2
United States
From the start of the project to the end I cannot fault this supplier. He's great in communication and responsiveness. Jeremiah grasped the concept of our requirements...
john_jerryr
United States
Jeremiah did an excellent job. He understood the issue quickly, communicated clearly throughout the process, and fixed everything exactly as needed. He was...
benmorgel
United States
Jeremiah, did an amazing job understanding and then executing on the problems and bugs I was having. He kept on each thing til it was done. Would recommend
About this gig
Need a web app built properly, not patched together? I'm a software developer who builds full stack web applications with React, Next.js, Node.js and Supabase, plus SaaS MVPs and AI software, from first screen to live deployment.
Built for founders, startups and small businesses that want a working product.
What I build:
- Full stack React web apps with admin dashboards and user roles
- SaaS MVPs with APIs, payments and a database
- AI features: chatbots, OpenAI API and LangChain integrations
- Base44 apps: builds, fixes and custom code
- Bug fixes, speed and mobile optimisation
- Supabase and Vercel setup, deployment and handover
Stack: React, Next.js, Node.js, Express, MongoDB, PostgreSQL, Supabase, Tailwind CSS, Python, Base44.
How it works:
1. Message me your idea or your bug before ordering.
2. I confirm scope, timeline and the right package.
3. You get progress updates, then a live deploy and the source code.
What you get:
- Clean, maintainable code
- Clear communication, no ghosting
- 30 days of support after handover
Not sure which package fits? Send a short note about your project and I will recommend one. No pressure.
Get to know Jeremiah G
Jeremiah G
Full Stack Developer SaaS MVP Claude Code AI VOICE AGENT n8n
Level 1
- FromUnited States
- Member sinceFeb 2025
- Avg. response time1 hour
- Last delivery1 week
Languages
English, Spanish, French, German, Dutch
I'm a Full-Stack Developer focused on MERN stack development, modern web apps, SaaS platforms, AI-powered applications, and business automation. I help startups, founders, agencies, and businesses turn ideas into fast, scalable, and reliable digital products today!
Services:
✅ MERN Stack Web Development
✅ Custom Web Apps & SaaS
✅ React, Node.js, Express & MongoDB
✅ APIs & Third-Party Integrations
✅ Dashboards & Business Systems
✅ AI-Powered Web Apps
✅ AI Voice Agents
✅ n8n, Make.com & Zapier Automation
✅ CRM & API Integrations
Let's build a solution that works for your business.
My Portfolio
Other Software Development Services I Offer
FAQ
What tech stack do you use?
I specialize in the MERN stack—MongoDB, Express.js, React and Node.js. This unified JavaScript ecosystem speeds up development and allows for seamless collaboration
Can you build both the front‑end and back‑end?
Yes. I design responsive React/Next.js interfaces and write robust Node.js back‑end services. Using MongoDB or Supabase (PostgreSQL), I deliver fully functional full‑stack solutions.
Do you use Supabase or Firebase?
I usually recommend Supabase because it provides root access to a PostgreSQL database, strong security and real‑time features. However, I’m comfortable working with Firebase or other databases if they better suit your project.
How do you handle authentication and security?
I implement secure authentication flows using Supabase Auth and row‑level security, or JWT/OAuth where appropriate HTTPS, environment variables and role‑based access control are standard in every project.
Will you deploy my project?
Absolutely. I deploy to Vercel or alternatives. I understand that Vercel’s usage‑based pricing and serverless limits can be tricky, so I configure deployments to balance cost, performance and scalability.
Do you integrate third‑party APIs?
Yes. I connect payment gateways, social logins, analytics services and any REST/GraphQL API your application requires. API integration is part of every Standard and Premium package.
How do you ensure scalability?
I design architectures with modular code, environment‑based configurations and cloud‑native patterns. Supabase and MongoDB scale horizontally, while Node.js and React allow for optimized performance under high traffic.
Can you build AI‑enabled features?
Yes. Supabase’s pgvector support enables vector searches and recommendation systems. I integrate AI APIs or custom models to deliver intelligent user experiences.
Reviews
4 reviews for this Gig
| (4) | ||
| (0) | ||
| (0) | ||
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
A alexx12_2
United States
Ongoing collaborationFrom the start of the project to the end I cannot fault this supplier. He's great in communication and responsiveness. Jeremiah grasped the concept of our requirements straight away and has delivered a first class platform for our start up business. I would highly recommend Jeremiah to others. First class service at a competitive price.
$50
Price
5 days
Duration
Helpful?J john_jerryr
United States
Jeremiah did an excellent job. He understood the issue quickly, communicated clearly throughout the process, and fixed everything exactly as needed. He was professional, responsive, and paid attention to the small details. The final result was clean and worked perfectly. I would definitely recommend Jeremiah to anyone looking for a reliable developer.
$50
Price
2 days
Duration
Helpful?B benmorgel
United States
Jeremiah, did an amazing job understanding and then executing on the problems and bugs I was having. He kept on each thing til it was done. Would recommend
$400-$600
Price
4 days
Duration
Helpful?J 
juancamilo143
United States
Jeremiah went above and beyond and was able to connect my Claude code to various other platforms like supabase and vercel and did it while trouble shooting and delivering on time.
$100-$200
Price
1 day
Duration
Helpful?
Reviews
4 reviews for this Gig
| (4) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
A alexx12_2
United States
Ongoing collaborationFrom the start of the project to the end I cannot fault this supplier. He's great in communication and responsiveness. Jeremiah grasped the concept of our requirements straight away and has delivered a first class platform for our start up business. I would highly recommend Jeremiah to others. First class service at a competitive price.
$50
Price
5 days
Duration
Helpful?J john_jerryr
United States
Jeremiah did an excellent job. He understood the issue quickly, communicated clearly throughout the process, and fixed everything exactly as needed. He was professional, responsive, and paid attention to the small details. The final result was clean and worked perfectly. I would definitely recommend Jeremiah to anyone looking for a reliable developer.
$50
Price
2 days
Duration
Helpful?B benmorgel
United States
Jeremiah, did an amazing job understanding and then executing on the problems and bugs I was having. He kept on each thing til it was done. Would recommend
$400-$600
Price
4 days
Duration
Helpful?J juancamilo143
United States
Jeremiah went above and beyond and was able to connect my Claude code to various other platforms like supabase and vercel and did it while trouble shooting and delivering on time.
$100-$200
Price
1 day
Duration
Helpful?
