You will get I will build your web application MVP with React and Node.js (15)

5.0

Let a pro handle the details

Buy Web Application Programming services from Sergei, priced and ready to go.
5.0

Let a pro handle the details

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

Project details

Ready to launch your web product? I'll build a professional, scalable web application that's ready for real users.

What I build:
• SaaS platforms
• Dashboards and admin panels
• Marketplaces
• Booking/scheduling systems
• Social platforms
• CRM systems
• Internal tools

Tech stack:
• Frontend: React, Next.js, Tailwind CSS
• Backend: Node.js, Express, NestJS
• Database: PostgreSQL, MongoDB
• Auth: JWT, OAuth, Magic Links
• Hosting: Vercel, AWS, Railway

What you get:
• Clean, maintainable code
• Responsive design (mobile-friendly)
• SEO optimized
• Fast performance
• Security best practices
• Full deployment
• Source code ownership

I focus on building MVPs that can scale. Start lean, grow big!
Programming Languages
JavaScript, TypeScript
What's included
Service Tiers Starter
$399
Standard
$699
Advanced
$1,199
Delivery Time 7 days 10 days 14 days
Number of Revisions
123
Number of Pages
71520
Design Customization
-
Content Upload
-
-
Responsive Design
Source Code

Frequently asked questions

5.0
2 reviews
100% Complete
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DS

David S.
5.00
Jun 5, 2026
Mobile App Development for Android and iOS Sergei has been terrific to work with. He has been able to problem solve when issues arise and had some great ideas to help shape the outcome of the project. I will happily continue working with Sergei on this project, and future projects. Sergei has been someone that can problem solve, bring fresh ideas to the table and holds himself accountable for the work he does.

IK

Igor K.
5.00
Jan 23, 2026
Simple Task Tracker App Sergei was fantastic to work with! He delivered the task tracker app on time, with excellent quality and attention to detail. His proactive communication, clear explanations, and smart recommendations made the whole process seamless. The code is clean, well-structured, and maintainable. I truly appreciated his initiative and professionalism—highly recommend for any React Native project!
Sergei T.Status: Offline

About Sergei

Sergei T.Status: Offline
Full-Stack Developer | Web & Mobile Applications | React Native
83% Job Success
5.0  (2 reviews)
San Francisco, United States - 11:40 pm local time
Full-stack developer based in San Francisco (PST). I take founders from idea to a live, production app, fast, and with senior-level execution.

In the past year I've shipped 5 products end-to-end:
• ChekBack - a receipt-cashback app
• PhotoOffice - an AI passport-photo service
• ChessTourism - a chess-tournament platform
• Pluto - a field-service management system for home-service companies
• MotoSocial - a social network for motorcyclists

Each one went from concept to deployment, including auth, payments, integrations, and infrastructure.

Why clients work with me:
• US-based, real-time overlap with your business hours
• Native, clear English on calls and in writing
• Senior delivery - I ship working software, not just plans
• I stay with you until your app is published - I never leave you alone with your issues or concerns
• Warranty after delivery - if something breaks on my work, I fix it, no extra charge

Core stack: React, React Native, Next.js, TypeScript, Node.js, PostgreSQL.

Also: Python (FastAPI/Django), Expo, Redis, AWS/Hetzner/Cloudflare, CI/CD, REST & GraphQL, CRM and third-party integrations.

Best fit for: founders and startups who need an MVP or full product built right, the first time.

Send me your idea and I'll reply with a rough scope and timeline. No charge.

Steps for completing your project

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

Delivery time starts when Sergei receives requirements from you.

Sergei works on your project following the steps below.

Revisions may occur after the delivery date.

Requirements gathering

Requirements gathering and planning

Development and implementation

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