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I will be your react js and next js developer for saas web app development
Stas Sorokin
Level 2
About this gig
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, 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!
Get to know Stas Sorokin
Stas Sorokin
Expert Software Development Full Stack Lead Engineer
Level 2
- FromIsrael
- Member sinceJul 2017
- Avg. response time1 hour
- Last delivery6 days
Languages
English, Russian
Welcome!
I'm Stas Sorokin with over 9 years of experience in the tech industry, including work with leading organizations. Specializing in front-end, back-end, native, and mobile development, I've honed a diverse skill set to meet your unique needs.
My record of 50+ positive reviews underscores commitment, quality, speed, and clean code. I believe in putting the client at the center of everything I do. From our initial consultation to the final delivery, you will get a high-standard service that exceeds your expectations.
Let's collaborate together to turn your ideas into a digital reality!
Among my clients
Vercel
Software Development
Fiverr
Internet Software & Services
My Portfolio
Other Software Development Services I Offer
FAQ
Which frameworks do you use?
Front-end: React 18, Next.js 14, Redux Toolkit, Tailwind CSS or MUI. Back-end: Node.js + Express or Python Flask/Django; GraphQL or REST.
Can you add real-time features?
Absolutely—Socket.io, WebSockets, or Pusher for chat, notifications, live dashboards, and multiplayer collaboration.
Do you support TypeScript?
Yes. All packages can be coded in TypeScript for stronger typing, faster refactors, and safer releases.
Will my app be mobile-responsive?
Every component is built with responsive design and tested on Chrome, Safari, Firefox, iOS, and Android breakpoints.
Do you write tests?
Unit tests (Jest) included in Business; Premium adds end-to-end tests with Cypress plus full CI coverage.
Is the code scalable and maintainable?
Yes—clean folder structure, atomic components, ESLint + Prettier, and automated pipelines ensure long-term maintainability.
What about security?
JWT/OAuth 2.0 auth, rate-limiting, input validation, OWASP best practices, HTTPS enforcement, and optional Snyk scans.
Who owns the source code?
100 % ownership transfers to you after completing the project; code is delivered via private Git repo or ZIP archive.
What support do I get post-launch?
7 days (Basic), 14 days (Business), 30 days + quarterly reviews (Premium). Extra maintenance plans are available.
Can you join our team’s Slack or Scrum board?
Yes, after starting the project, I am comfortable with Agile sprints, Jira, Trello, or Slack for transparent, real-time collaboration.
