Upwork home
Sign up
Project Catalog
DesignDesign
Video & AudioVideo & Audio
Development & ITDevelopment & IT
MarketingMarketing
Writing & TranslationWriting & Translation
MoreMore

You will get Expert Full Stack Developer | Node.js, React, MERN,AI Full-Stack Web App

Adam R.Status: Offline
Adam R. Adam R.
5.0
Top Rated
Preview image

Let a pro handle the details

Buy Web Application Programming services from Adam, priced and ready to go.
Adam R.Status: Offline
Adam R. Adam R.
5.0
Top Rated
Preview image

Let a pro handle the details

Buy Web Application Programming services from Adam, priced and ready to go.

Project details

You will get an astonishing web application built by an experienced Full Stack Developer specializing in the MERN stack (MongoDB, Express, React, Node.js). I create visually captivating, high-performance, and fully responsive digital experiences using React, Node.js, and modern JavaScript technologies.

Whether you're launching a SaaS platform, building an AI-powered solution, developing an MVP, or scaling a custom web app, I ensure clean architecture, seamless user experience, and production-ready backend integration. From frontend design to backend logic and deployment, I deliver complete, scalable solutions that help your business stand out and grow.

Let’s transform your vision into a professional, high-converting digital product.
Programming Languages
HTML & CSS, JavaScript, TypeScript
What's included
Service Tiers Starter
$200
Standard
$250
Advanced
$350
Delivery Time 3 days 3 days 6 days
Number of Revisions
35Unlimited
Number of Pages
1510
Design Customization
Content Upload
Responsive Design
Source Code
Optional add-ons You can add these on the next page.
Fast Delivery
+$75 - $70
Additional Revision
+$10
Additional Page (+ 1 Day)
+$20
5.0
14 reviews
100% Complete
(14)
1% Complete
(0)
1% Complete
(0)
1% Complete
(0)
1% Complete
(0)

AJ

Andrew J.
5.00
Mar 18, 2026
Full Stack Developer for Website Hosting, Setup & API Integration – Green Future Solutions Definitely a great choice for our businesses needs. He delivered in a timely manner every time.

KH

Kyley H.
5.00
Mar 16, 2026
Single map integration page

GW

George W.
5.00
Jan 3, 2026
API to LLMs Amazing to work with. Highly professional. Cares so much for happiness of client.

GW

George W.
5.00
Dec 10, 2025
Need API built to various AI LLMs Exceptional quality work and communications. Deliverables completed in a timely manner.
Definitely will be working on more projects with this coder.

AJ

Andrew J.
5.00
Dec 7, 2025
Experienced No-Code Developer for Harmony Eco Ranch Platform Very prompt and professional
Adam R.Status: Offline

About Adam

Adam R.Status: Offline
Full Stack Developer | Backend Developer | AI Engineer | SaaS MVP | AI
100% Job Success
5.0  (14 reviews)
Ariana, Tunisia - 3:25 am local time
Hi, I'm Adam đź‘‹

Tell me your idea, plan, or prototype and I will transform it into a scalable, production-ready SaaS ( Full-Stack app ) . That is my promise.

If you send me an invitation or a message, I’ll provide a technical audit or a personalized breakdown of how we can take your project from "concept" to "launch" in record time.

A little more about me:

I help founders and growth-focused businesses scale fast by engineering high-performance web and mobile applications. With over 5 years of experience, I don't just write "clean code." I build resilient AI-powered ecosystems designed to handle thousands of users and complex business logic.

Whether you are looking to build a marketplace from scratch, a fintech dashboard, or an AI agent architecture, I turn technical chaos into streamlined, data-driven platforms.

Big Tech Pedigree: 5+ years of experience
Rapid MVP Specialist: I specialize in "from-scratch" builds and lightning-fast delivery.
Prototype to Production: Expert at transforming static UI (lovable.dev, Figma) into fully functional apps.
100% Full-Cycle Ownership: From architecting the "brain" (Backend) to pixel-perfect UI (Mapbox & React).
AI Integrated: Custom LLM implementations and AI Agent architectures that go beyond simple chatbots.

🔧 TECH STACK & EXPERTISE
Core Development:

Frontend: React.js, Next.js (App Router), Angular, TypeScript, JavaScript, HTML/CSS.
Backend: Node.js, Python, PHP, NestJS, API Development (REST/GraphQL).
Mobile: React Native (iOS & Android).

Database & Infrastructure:
Databases: MongoDB, PostgreSQL, MySQL, Supabase, Firebase / Firestore, DynamoDB.
DevOps: Git workflows, CI/CD pipelines, SSR, PWA, Performance Optimization.

Specialized Solutions:

SaaS Platforms: Multi-tenant architectures, Admin Panels, Marketplaces, Internal Tools.
Fintech & E-commerce: Secure Stripe gateways, high-traffic stores, and booking systems.
Geospatial: Pixel-perfect Mapbox architectural styling and data visualization.
AI Automation: OpenAI API integrations, AI Agents, and Workflow Automation.

🎯 WHY CLIENTS HIRE ME
Commercial Focus: I build for business outcomes, ensuring your tech stack supports your ROI.
Design System Implementation: I use component libraries and custom design systems to ensure a premium user experience.
Clean Architecture: Expert in SQL/NoSQL optimization and scalable middleware transformation layers.
Constant Communication: You’ll never be in the dark; I provide regular updates and full transparency via GitHub.

Stop fighting with unreliable freelancers. If you need a Senior Full Stack Developer to rescue a project or a SaaS Architect to build your next big idea, let’s build something that scales.

Keywords:
React, React Native, Software Architecture & Design, Laravel, Python, Full-Stack Development, API Development, JavaScript, PHP, Web Application Development, Node.js, AWS Development, MySQL, Mobile App Development, Django, WordPress, HTML5, Tailwind CSS, Web Design, API Integration, React, Next.js, TypeScript, Node.js, NestJS, Python, FastAPI, Django · OpenAI, Anthropic Claude, Google Gemini, LangChain, RAG, pgvector, Pinecone, AI agents · PostgreSQL, MongoDB, Redis, Prisma, Supabase, Firebase · AWS, GCP, Docker, Kubernetes, CI/CD · Stripe, HubSpot, Salesforce · HIPAA, HL7, FHIR, SEC Reg CF, multi-tenant SaaS, MVP development, fractional CTO

Steps for completing your project

After purchasing the project, send requirements so Adam can start the project.

Delivery time starts when Adam receives requirements from you.

Adam works on your project following the steps below.

Revisions may occur after the delivery date.

Initial Consultation and Requirement Gathering

Share with me your project details to fully understand your vision, goals, and target audience.

Review the work, release payment, and leave feedback to Adam.