You will get a react js and next js developer for saas web app development
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Project details
Looking for a senior React engineer to turn your concept into a lightning-fast, production-ready web app? You've found him!
I'm Stas Sorokin, a full-stack developer with 9 + years building SaaS at scale using React, Next.js, Node.js, and Python. I craft modular UIs, split bundles for <2 s loads, and wire secure REST or GraphQL APIs so users enjoy instant, seamless experiences.
What I deliver:
Single-page dashboards or multi-page SSR / CSR Next.js apps
Redux Toolkit / Context, TypeScript, Tailwind CSS or MUI
Auth, RBAC, Stripe/PayPal payments, real-time Socket.io chat
PostgreSQL / MongoDB back ends, Docker & AWS CI/CD pipelines
Lighthouse 90 + scores, unit (Jest) & e2e (Cypress) tests, full docs
Deploy to Vercel, Heroku, ECS, or Kubernetes
Tech stack:
JavaScript
TypeScript
React
Next.js
Node.js
Express
Flask
GraphQL
Redis
AWS
Why partner with me?
Enterprise-grade coding & architecture
Transparent sprints and Git history
Clear communication & video hand-off
Post-launch support in every tier
Let's build a web application that scales with your ambition. Contact me now for a free architecture review, and let's build your project together!
I'm Stas Sorokin, a full-stack developer with 9 + years building SaaS at scale using React, Next.js, Node.js, and Python. I craft modular UIs, split bundles for <2 s loads, and wire secure REST or GraphQL APIs so users enjoy instant, seamless experiences.
What I deliver:
Single-page dashboards or multi-page SSR / CSR Next.js apps
Redux Toolkit / Context, TypeScript, Tailwind CSS or MUI
Auth, RBAC, Stripe/PayPal payments, real-time Socket.io chat
PostgreSQL / MongoDB back ends, Docker & AWS CI/CD pipelines
Lighthouse 90 + scores, unit (Jest) & e2e (Cypress) tests, full docs
Deploy to Vercel, Heroku, ECS, or Kubernetes
Tech stack:
JavaScript
TypeScript
React
Next.js
Node.js
Express
Flask
GraphQL
Redis
AWS
Why partner with me?
Enterprise-grade coding & architecture
Transparent sprints and Git history
Clear communication & video hand-off
Post-launch support in every tier
Let's build a web application that scales with your ambition. Contact me now for a free architecture review, and let's build your project together!
Programming Languages
HTML & CSS, JavaScript, TypeScriptWhat's included
| Service Tiers |
Starter
$695
|
Standard
$1,950
|
Advanced
$8,900
|
|---|---|---|---|
| Delivery Time | 10 days | 21 days | 30 days |
Number of Revisions | Unlimited | Unlimited | Unlimited |
Number of Pages | 1 | 5 | 10 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code | - | - | - |
Frequently asked questions
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YR
Yancy R.
Feb 10, 2026
AI & Blockchain Engineer Needed for Innovative Project
No Comments
AL
Alex L.
Jul 15, 2025
Landing Page - Pharmiteer
I recently hired Stas on Upwork to develop Pharmiteer, our pharmaceutical management app, and the collaboration was exceptional. He translated complex pharma requirements into a clean, intuitive interface, implemented secure user authentication, and ensured seamless performance across devices. His proactive communication and adherence to regulatory standards made the process smooth and worry‑free. I highly recommend Stas for any healthcare or pharma software projects.
AL
Alex L.
Jul 15, 2025
Web Design & Development - Bridge China
I recently hired Stas on Upwork to build Bridge‑China’s landing page, and the experience was outstanding. He communicated clearly, adhered to the timeline, and delivered a polished, fully responsive design that reflects our brand. The site performs flawlessly, guiding visitors smoothly toward our key offerings. I highly recommend Stas for any web development needs.
AL
Alex L.
Jul 15, 2025
Web Landing Page - Lavrendev
I recently hired Stas on Upwork to build Lavrendev’s landing page, and it was a flawless experience from start to finish. He communicated clearly, delivered every milestone on time, and his attention to detail resulted in a polished, high‑performing site. I was especially impressed by his proactive suggestions for UX improvements and his commitment to fast loading and responsive design. I highly recommend Stas to anyone looking for top‑quality web development.
DI
David I.
Sep 7, 2024
HouseCallPro (HCP) Open Work Order via PDF
Great to work with, professional, and talented.
About Stas
AI ML OpenAI | Software Fullstack Dev | React | Web Apps | 12+ Yrs XP
100%
Job Success
Yehud, Israel - 3:35 pm local time
Hey there! I'm Stas Sorokin, your go-to tech maestro, ready to breathe life into your digital dreams with a sprinkle of coding magic and a dash of innovation. With over ten years of crafting digital solutions for top-tier organizations worldwide, I've mastered the art of turning complex ideas into sleek, efficient realities. Whether it's front-end flair, back-end brawn, native app novelty, or mobile development mastery, I'm your guy.
Why Stas? Here's Why:
- 🌟 Proven Excellence: CTO and Founder of a Software Developer firm & a Pro Verified developer with a 5-star rating across 50+ reviews. My code isn't just clean; it's pristine.
- 🚀 Tech Wizardry: From AI applications that dazzle to web wonders and API alchemy, I've done it all. My toolbox is a tech enthusiast's dream, ready to tackle your unique challenges.
- 💡 Client-Centric Vision: Your vision is my mission. I dive deep into your world, ensuring the final product isn't just good; it's tailor-made for your success.
- 🤖 AI & Beyond: Leveraging the latest in AI, I transform businesses, streamline operations, and create experiences that resonate and revolutionize.
What I Bring to the Table:
- 🎨 Front-End & Back-End Development: Crafting visually stunning and functionally robust platforms that engage and convert.
- 📱 Native & Mobile Development: Seamless, responsive designs that ensure your project shines on any screen, anywhere.
- 🧠 AI Integration & Development: From sophisticated AI applications to smart API integrations, I harness the power of AI to elevate your project.
- 🛠 Full-Stack Expertise: With a comprehensive skill set, I oversee your project from conception to launch, ensuring a cohesive and compelling digital experience.
Your Journey together:
1. Discovery & Strategy: We kick off with a deep dive into your vision, mapping out a strategy that aligns with your goals.
2. Design & Development: With a clear plan in place, I bring your project to life, ensuring every pixel and line of code adds value.
3. Launch & Beyond: Post-launch, I stand by you, ready to iterate and evolve your project to keep you ahead of the curve.
Let's Make Magic Happen:
Ready to transform your ideas into digital excellence? I'm just a message away. Reach out, and let's embark on a journey that takes your project from concept to reality, exceeding expectations every step of the way.
🚀 Tech Stack Extravaganza: Dive into My Digital Toolbox! 🚀
Frontend Brilliance:
- 🌐 JavaScript Ecosystem: Vue.js, Node.js, ExpressJS, Angular, Nuxt.js
- 🎨 React Mastery: React.js (with Redux & Saga), React Native for seamless mobile experiences
- 🖌 Styling Superpowers: HTML/CSS with a flair for Tailwind, Livewire; embracing PWA for next-gen web apps
- 📐 Design Systems: Material UI, Ant Design, Styled Components for visually stunning interfaces
Backend & Database Dynamo:
- 🛠 PHP Prowess: Laravel (PHP 7 & 8) for robust backend solutions
- 💾 Database Diversity: MySQL, PostgreSQL, MongoDB, DynamoDB for scalable data storage
- 🌍 API Artistry: Expert in both development (Node.js, Python - Django, Go - Golang) and integrations (Stripe, PayPal, Twilio, and more)
Cloud Giants & DevOps:
- ☁️ AWS Arsenal: Route 53, API Gateway, Lambda, DynamoDB, S3, SageMaker, and more for scalable, efficient cloud solutions
- 🌌 Azure Suite: DNS, API Management, Functions, Cosmos DB, Machine Learning, and more for powerful cloud-based applications
AI & Machine Learning Marvels:
- 🤖 AI Integration & Development: GPT-4, Embeddings, RAG, LangChain, Cloud 2.1, Mixtral, GPT-4 Vision, Gemini Pro + Vision, Gemini Ultra, AutoGen for cutting-edge AI solutions
- 🧠 Smart Solutions: Building AI SaaS, integrating ChatGPT, fine-tuning LLM models, crafting prompt engineering solutions, and developing smart chatbots and voice assistants
Mobile Development Magic:
- 📱 Cross-Platform Excellence: React Native, iOS, Android development with tools like Expo and Fastlane for top-notch mobile apps
Web Frontend Wonders:
- 🌟 Next-Gen Frameworks: Next.js, Nuxt.js, Angular, Vue, Electron for dynamic, responsive web applications
Backend Backbone:
- 🔧 Node.js & More: MongoDB, Redis, PostgreSQL, SQL, MySQL, GraphQL, Cassandra, RabbitMQ for powerful, efficient backend services
Freebies Because You're Awesome:
- 🎁 FREE Quotation & Project Consulting: Because your vision deserves the best start
Let's Create Digital Magic Together!
- 🚀 Your project isn't just another task on my list; it's the next opportunity to push the boundaries of what's possible. With this tech stack, your vision is primed to soar beyond the ordinary. Ready to embark on this journey? Let's chat and transform your ideas into digital marvels together!
Stas Sorokin - Where Technology Meets Imagination.
📩 Invite me to your project today and let's create something extraordinary together!
Steps for completing your project
After purchasing the project, send requirements so Stas can start the project.
Delivery time starts when Stas receives requirements from you.
Stas works on your project following the steps below.
Revisions may occur after the delivery date.
Step 1: Requirements & Planning
You share your project goals, wireframes, or feature list. I’ll analyze them and propose the best tech approach and timeline.
Step 2: Development & Implementation
I’ll build the React/Next.js front end, integrate APIs or databases, and ensure fast, secure, and scalable performance.