You will get React Developer Architecture Consultation | Figma to Next.js Roadmap
Top Rated

Project details
Turning design files into a fast, scalable frontend means avoiding messy component trees and sluggish state management. Having spent over 12 years writing code and shipping 100+ production apps, I help you bridge the gap between Figma designs and a clean Next.js architecture.
We will map out component hierarchies, establish consistent UI logic, and tie your frontend flows directly to backend processing. You get a clear, actionable roadmap and clean code patterns tailored to your product.
I help teams clean up UI state layers, implement strict auth boundaries, and ensure consistent rendering behavior across devices. Having built frontends across 15+ SaaS platforms, I focus on delivering responsive interfaces that perform smoothly without breaking under pressure.
I solve technical bottlenecks in:
• Figma to Next.js and React code translation
• Component architecture and state layer design
• Client-side and server-side boundary execution
• Frontend performance tuning and bundle optimization
• Consistent UI logic under heavy traffic
• Strict auth layers and secure client integration
We will map out component hierarchies, establish consistent UI logic, and tie your frontend flows directly to backend processing. You get a clear, actionable roadmap and clean code patterns tailored to your product.
I help teams clean up UI state layers, implement strict auth boundaries, and ensure consistent rendering behavior across devices. Having built frontends across 15+ SaaS platforms, I focus on delivering responsive interfaces that perform smoothly without breaking under pressure.
I solve technical bottlenecks in:
• Figma to Next.js and React code translation
• Component architecture and state layer design
• Client-side and server-side boundary execution
• Frontend performance tuning and bundle optimization
• Consistent UI logic under heavy traffic
• Strict auth layers and secure client integration
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$900
|
Standard
$1,800
|
Advanced
$3,600
|
|---|---|---|---|
| Delivery Time | 3 days | 6 days | 12 days |
Number of Revisions | 0 | 0 | 0 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code | - | - | - |
23 reviews
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SD
Shelomo D.
Oct 25, 2024
Full Stack Developer
Working with Sergey has been a great experience. His commitment and professional attitude ensure that every project is done well and on time. Sergey consistently provides clear and organized ideas, which improve our teamwork and lead to excellent outcomes. His skill in aligning with our goals makes him an essential partner. I highly recommend Sergey and can't wait to collaborate with him again.
SD
Shelomo D.
Jan 11, 2023
Fullstack Developer
Sergey has shown excellent technical skills and a solid understanding of software development principles. Their coding is clean and well-organized, with a focus on maintainability and scalability. He works well in a team, and are able to effectively communicate and collaborate with other team members. He has also shown a strong ability to learn new technologies and adapt to changing requirements.
YB
Yonatan B.
May 31, 2021
Full Stack | React & Node.js
Sergey is an absolute asset. Dedicated, communicative and highly professional developer. It was a pleasure working with him for so long. We hope to extend our work in future projects. We highly recommend Sergey as a full stack developer.
YB
Yonatan B.
Nov 30, 2020
Full Stack Needed | React & Node.js
Sergey has proved himself to be one of the best developers we ever worked with. Communication is great, execution is stellar and the quality of work is amazing. Would highly recommend hiring him for complex projects. Looking forward to our next project!
RS
Ruslan S.
Nov 2, 2020
Senior JavaScript Developer
Sergey is a responsible and professional developer who moved us to the next level in terms of code quality and architecture, thank you!
About Serhii
Senior AI Full-StackDeveloper | Next.js, Node.js | SaaS, AI agents
100%
Job Success
Zaporizhzhya, Ukraine - 5:47 am local time
With 12+ years of engineering and 100+ delivered projects, I build robust Next.js and NestJS systems that don't break under heavy traffic.
Whether you need a rock-solid Next.js frontend, a NestJS modular backend, or secure Stripe subscription billing logic, I build systems that perform from day one. No fluff, no endless project management layers - just direct engineering execution.
What I build & scale:
Full Stack SaaS apps: React, Next.js, Node.js, and TypeScript architectures.
AI & RAG pipelines: custom AI agents, LangChain integrations, smart model routing, and vector databases.
Payment orchestration: Stripe subscriptions, multi-provider routing, idempotency, and webhook handling under load.
Backend performance: PostgreSQL, MySQL, AWS, and Redis caching layers with strict security boundaries.
📊 Proven track record:
AI-powered CRM & SaaS: Shipped a custom React app in 6 weeks, handling 500K+ enterprise documents inside an optimized pgvector/langChain pipeline while cutting infrastructure costs by 40%.
B2B E-commerce & FinTech: executed seamless payment migrations and built Stripe graduated pricing subscription architectures with 0% transaction failure rates.
100+ Successful Deliveries: backed by 12+ years of hands-on engineering experience and a 100% success mindset.
Let's build your scalable MVP or perform a thorough security and performance pass.
Send a message or hit Invite to schedule a quick introduction chat today.
Steps for completing your project
After purchasing the project, send requirements so Serhii can start the project.
Delivery time starts when Serhii receives requirements from you.
Serhii works on your project following the steps below.
Revisions may occur after the delivery date.
Frontend Architecture and Figma Roadmap Execution
Depending on your selected tier, I review your design handoff or build your Next.js frontend architecture roadmap. I apply performance-first patterns, resolve UI bottlenecks, and structure your components for production scale.