You will get scalable AI-powered full-stack web app using Next.js, Node.js and React
Rising Talent
Rising Talent
Project details
You will get a high-performance, scalable full-stack web application built using modern technologies like Node.js, React, and TypeScript. With 5+ years of experience in building SaaS platforms, AI-driven systems, and real-world production applications, I focus on delivering clean architecture, fast performance, and seamless user experience.
I don’t just build features I design systems that are optimized for scalability, maintainability, and real business use. From API integrations to responsive UI and backend logic, every part of the application is structured for long-term growth.
Whether you need an MVP, admin dashboard, or complete SaaS platform, I ensure reliable delivery, clean code, and smooth communication throughout the project.
I don’t just build features I design systems that are optimized for scalability, maintainability, and real business use. From API integrations to responsive UI and backend logic, every part of the application is structured for long-term growth.
Whether you need an MVP, admin dashboard, or complete SaaS platform, I ensure reliable delivery, clean code, and smooth communication throughout the project.
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, PSD to HTML, Performance OptimizationWhat's included
| Service Tiers |
Starter
$200
|
Standard
$400
|
Advanced
$800
|
|---|---|---|---|
| Delivery Time | 7 days | 14 days | 21 days |
Number of Revisions | 1 | 2 | 3 |
Number of Pages | 3 | 6 | 10 |
Design Customization | - | ||
Content Upload | - | - | |
Responsive Design | |||
Source Code |
Optional add-ons
You can add these on the next page.
Additional Revision
+$15
Additional Page
(+ 1 Day)
+$50
Content Upload
(+ 2 Days)
+$150About Divyansh
Full Stack Developer | SaaS MVP | Next.js + React + Python | LLM
Gurugram, India - 11:35 am local time
Most early-stage teams burn months coordinating three contractors who don't talk to each other a backend dev, a frontend dev, and an AI specialist, each owning a piece but nobody owning the product. I'm one senior full-stack engineer who handles the entire stack from architecture to deployment, so your MVP ships in weeks instead of quarters.
WHERE I ADD THE MOST VALUE
▸ You have a SaaS product and want to add AI features (chatbot, document processing, intelligent workflows) without breaking what already works.
▸ You're a founder who needs a full product built frontend, backend, AI integration, and deployment by one reliable engineer.
▸ You need LLM features that are production-hardened: streaming responses, fallback handling, cost optimization, and real error recovery.
▸ You want fast delivery without accumulating technical debt.
WHAT I BUILD
▸ LLM-Powered Applications - Chat interfaces, AI assistants, document Q&A (RAG), automated workflows, and voice-enabled AI apps using OpenAI, Claude API, LangChain, and LlamaIndex. Integrated directly into your product not bolted on as an afterthought.
▸ Full-Stack SaaS Platforms - End-to-end SaaS development using Next.js, React, FastAPI, and
Java Spring Boot. Auth (NextAuth, JWT), Stripe payments, role-based dashboards, multi-tenancy, and REST/WebSocket APIs.
▸ API Development & Third-Party Integrations - Clean RESTful APIs with FastAPI or Spring Boot. Integrations with OpenAI, Anthropic, Stripe, Twilio, Agora, ElevenLabs, Azure Cognitive Services, and more.
▸ Mobile Apps (Android & iOS) - Native Android apps in Java/Kotlin and cross-platform solutions
with React Native real-time sync, offline support, and AI-powered features built in.
▸ Database & Backend Architecture - PostgreSQL, MongoDB, Supabase, Redis. Schema design, query optimization, and backend architecture that scales as your user base grows.
▸ Cloud Deployment & DevOps - Docker, Azure, AWS, Vercel, Firebase. CI/CD pipelines, environment
configuration, and production deployment not just "it works on my machine."
RECENT PROJECTS
AI Interview Platform (B2B SaaS) - Built a real-time AI interviewer using LLMs, voice synthesis (ElevenLabs), and Microsoft Speech-to-Text. Deployed on Azure for B2B clients in South Korea. Handles live interview sessions with automated evaluation and scoring.
SaaS MVP - 6 Weeks to Launch - Took a founder from idea to deployed product in 6 weeks. Next.js
frontend, FastAPI backend, OpenAI integration, Stripe billing, and multi-tenant architecture.
LLM Cost Optimization - Reduced OpenAI API costs by 40% through prompt caching, response
streaming, and smart model routing for a production SaaS platform.
TECH STACK
AI / LLM: OpenAI API · Claude API · LangChain · LlamaIndex · ElevenLabs · Whisper · Azure OpenAI
Backend : FastAPI · Java Spring Boot · Node.js · REST APIs · WebSockets · JWT · OAuth2
Frontend : Next.js · React.js · TypeScript · Tailwind CSS · ShadCN · Redux
Mobile : Android (Java / Kotlin) · React Native
Database : PostgreSQL · MongoDB · Supabase · Redis · Prisma ORM
Cloud & DevOps : Azure · AWS · Vercel · Firebase · Docker · CI/CD
WHY CLIENTS WORK WITH ME AGAIN
▸ I ask the right questions before writing a single line of code
▸ I communicate clearly no ghosting, no vague updates
▸ I flag problems early instead of hiding them until the deadline
▸ I care about your product working, not just your ticket being closed
▸ I write code that the next developer can actually read and maintain
LET'S TALK
𝐒𝐞𝐧𝐝 𝐦𝐞 𝐚 𝐦𝐞𝐬𝐬𝐚𝐠𝐞 ➤ 𝐎𝐫 𝐢𝐧𝐯𝐢𝐭𝐞 𝐦𝐞 𝐭𝐨 𝐭𝐡𝐞 𝐣𝐨𝐛 ➤ 𝐈'𝐥𝐥 𝐫𝐞𝐬𝐩𝐨𝐧𝐝 𝐢𝐧 𝟐 𝐦𝐢𝐧𝐮𝐭𝐞𝐬.
If it's a fit, we move fast.
Steps for completing your project
After purchasing the project, send requirements so Divyansh can start the project.
Delivery time starts when Divyansh receives requirements from you.
Divyansh works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement review & planning
I analyze the requirements and define the system structure and approach.
Development phase
I build the frontend and backend with required features and integrations.