You will get Full Stack Developer | Next.js + Node.js MVP from scratch
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Top Rated
Project details
I am a full stack developer with 87+ Upwork projects and 100% Job Success, building production-ready Next.js + Node.js MVPs from scratch for SaaS founders and startups.
As a full stack developer I deliver end-to-end: Next.js frontend with modern UI/UX, Node.js or Python backend, PostgreSQL or Supabase database, Stripe billing, authentication, and deployment on AWS or Vercel with CI/CD.
Why hire me as a full stack developer for your Next.js + Node.js MVP: I have shipped 15+ SaaS products end-to-end, write clean TypeScript code, and ship in weeks not months. As a Node.js developer, Next.js developer, React developer, and Python full stack developer, I cover every layer of your product.
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As a full stack developer I deliver end-to-end: Next.js frontend with modern UI/UX, Node.js or Python backend, PostgreSQL or Supabase database, Stripe billing, authentication, and deployment on AWS or Vercel with CI/CD.
Why hire me as a full stack developer for your Next.js + Node.js MVP: I have shipped 15+ SaaS products end-to-end, write clean TypeScript code, and ship in weeks not months. As a Node.js developer, Next.js developer, React developer, and Python full stack developer, I cover every layer of your product.
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Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance OptimizationWhat's included
| Service Tiers |
Starter
$5,000
|
Standard
$9,999
|
Advanced
$19,999
|
|---|---|---|---|
| Delivery Time | 15 days | 30 days | 70 days |
Number of Revisions | 0 | 0 | 0 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | |||
Source Code |
65 reviews
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IK
Irina K.
May 18, 2026
30 minute consultation
I needed Agency AI consultation, Volodymyr provided all the needed expertise and technical details to the required depth.
HS
Harshal S.
Apr 23, 2026
30 minute consultation
AG
Andy G.
Apr 22, 2026
60 minute consultation
Vlad was extreamly easy to speak to. He was able to translate my ideas and concepts into a detailed specification for my project. His communication and attention to details is excellent. He is clearly very experienced and knowladgble person who is able to contibute and add value to the process.
FB
Florian B.
Mar 24, 2026
Lebenswerk.ai
Working with Volodymyr on the Lebenswerk.AI app has been an excellent experience from start to finish. He is highly skilled across the full stack — Android, iOS, back-end development, Azure hosting, and ChatGPT integration — and consistently delivers thoughtful, reliable solutions.
What stood out most to me is how solution-oriented he is. He does not just implement tasks; he actively thinks ahead, makes smart recommendations, and suggests improvements that add real value to the project. His technical expertise is obvious, but just as important is his ability to understand requirements quickly and turn them into practical, high-quality results.
If you are looking for a developer who is knowledgeable, proactive, and genuinely invested in building the best possible product, I can absolutely recommend him.
What stood out most to me is how solution-oriented he is. He does not just implement tasks; he actively thinks ahead, makes smart recommendations, and suggests improvements that add real value to the project. His technical expertise is obvious, but just as important is his ability to understand requirements quickly and turn them into practical, high-quality results.
If you are looking for a developer who is knowledgeable, proactive, and genuinely invested in building the best possible product, I can absolutely recommend him.
GA
Guido A.
Dec 12, 2025
Train GPT-3 over my Knowledge Base (html/markdown articles)
Great job, great technical skills, great communication skills, great responsiveness: highly suggested for production-ready projects!
About Volodymyr
Full Stack Developer AI | AI Agent Developer | AI SaaS MVP | RAG | MCP
100%
Job Success
Lviv, Ukraine - 6:19 pm local time
I'm an Full Stack Developer AI and AI Agent Developer building production-grade AI Agent systems, AI SaaS platforms, and RAG pipelines. As an AI Agent Developer, AI SaaS Developer, and Full Stack Developer AI — I take products from idea to launch in 4-6 weeks.
💬 "Working with Volodymyr on the Lebenswerk.AI app has been an excellent experience from start to finish. He is highly skilled across the full stack — Android, iOS, back-end development, Azure..." — Lebenswerk.ai client, $9,000 project
🎯 WHAT I BUILD
🔹 AI Agent Systems — Production LangGraph multi-agent workflows, MCP servers, OpenAI / Claude integrations — autonomous AI Agents that ship beyond demos
🔹 RAG Pipelines — Vector DB architecture (Pinecone, pgvector, Qdrant), embedding strategies, hybrid retrieval, evaluation for 100K+ document corpora
🔹 AI SaaS MVPs — Multi-tenant AI SaaS platforms with Stripe billing, RBAC, observability — shipped from idea to revenue in 4-6 weeks
🔹 MCP Servers — Model Context Protocol servers connecting internal tools to Claude Desktop, Cursor, and custom AI Agents
📌 AI Agent Development
As an Full Stack Developer AI with 6+ years building production AI Agent systems, I design and ship AI Agent architectures that scale. As an AI Agent Developer and AI SaaS Developer, I own multi-agent orchestration, agent state machines, error recovery, and cost-controlled inference.
🔹 LangGraph multi-agent workflows and state machines
🔹 LangChain agent design and tool calling
🔹 MCP server development for Claude Desktop, Cursor, agents
🔹 OpenAI Assistants API, GPT-4, Claude, Llama integrations
🔹 AI Agent observability and evaluation (LangSmith, Helicone)
🔹 Machine Learning, Python Full Stack Developer, UI UX, SaaS Developer
📌 AI SaaS Development
As an Full Stack Developer AI and AI SaaS Architect, I build multi-tenant AI SaaS products end-to-end. Built Zappr AI — a multi-tenant AI Agent SaaS platform with Stripe billing, scaling 10 to 10,000 users. As an AI SaaS Solutions Architect, I own architecture, AI integration, and delivery.
🔹 Multi-tenant SaaS architecture (row-level security, RBAC, OAuth2)
🔹 Stripe billing (usage-based, subscription, hybrid for AI SaaS cost structure)
🔹 Production AI SaaS infrastructure on AWS, Vercel, Supabase
🔹 React, Next.js frontends; Node.js, Python (FastAPI) backends; PostgreSQL data layer
📌 RAG & Vector Databases
As a RAG Engineer and AI Agent Developer with production experience over 100K+ document corpora, I design RAG pipelines that don't hallucinate. As an AI Agent Engineer, I tune retrieval for accuracy, latency, and cost.
🔹 Vector DB selection: Pinecone, pgvector, Qdrant, Weaviate, Chroma
🔹 Embedding model trade-offs: OpenAI, Cohere, open-source
🔹 Hybrid search, re-ranking, metadata filtering, query expansion
🔹 RAG evaluation pipelines and observability
📌 Full Stack Development for AI SaaS
As a Full Stack Developer AI, SaaS, I own the product end-to-end — React, Next.js, TypeScript frontends; Python FastAPI, Node.js backends; PostgreSQL, Supabase data layer; AWS, Vercel deployment. As a Full Stack Python Developer and Senior React Developer, I ship production-ready AI SaaS code, AI API
🏆 MY UPWORK TRACK RECORD
✅ Top Rated on Upwork
✅ 100% Job Success Score across 87 projects
✅ $200K+ earned delivering AI Agent and AI SaaS solutions
✅ 2,300+ Upwork hours
✅ 15+ AI products shipped end-to-end
✅ 5-star reviews from US, EU, UK, Australia founders
🎓 BACKGROUND
Master's in Information Systems & Artificial Intelligence, Bachelor's in Computer Science & AI. 6+ years building AI Agent systems, AI SaaS products, and RAG pipelines.
🤝 LET'S TALK
If you're building an AI Agent platform, a production RAG pipeline, or an AI SaaS product — and you want an Full Stack Developer AI who ships, owns, and thinks like a technical co-founder — message me.
Click "Schedule a consultation" above or invite me to your job and we'll get started.
Steps for completing your project
After purchasing the project, send requirements so Volodymyr can start the project.
Delivery time starts when Volodymyr receives requirements from you.
Volodymyr works on your project following the steps below.
Revisions may occur after the delivery date.
Discovery & Architecture Setup
Kickoff call to align scope, define data model, choose tech stack, set up Next.js + Node.js + database, configure CI/CD and deployment.