Serhii

SERHII SIEDNIEV
• Frontend developer •
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PROFILE STACK
Passionate Frontend Developer with React
experience building modern, responsive, and React infrastructure
high-performance web applications. Next
Proficient in React, Next.js, and TypeScript Typescript
with a strong focus on clean architecture, Redux
state management, and UI/UX best practices. Tailwind
React native
Alphine js

EXPERIENCE

rise (March 2021 - November 2021)
Javascript developer
• Supporting mobile application
• Develop new modules for existing application
• Create tools for optimization testing process

Drun’N’Code (December 2021 - October 2025)
Frontend Developer
• Developing web apps from scratch
• Working in team
• Communicating with clients

PROJECTS

Payment system
Developed and integrated a payment solution enabling merchants to accept online
payments directly on their websites. The system supports multiple methods,
including bank cards, e-wallets, and cryptocurrency (Bitcoin). Focused on secure
transaction processing, user-friendly integration, and scalable architecture to
handle high transaction volumes.

Stack: React, typescript, redux, oidc, react-hook-forms, tailwind, ag-grid

Implemented authentication and authorization flows via OpenID Connect (OIDC)
on the frontend.
Developed merchant and admin dashboards for managing payment systems,
wallets, and accounts.
Designed and implemented user management interfaces, allowing merchants to
assign wallet/account access to specific users.
Built withdrawal workflows and UI components, ensuring a secure and seamless
user experience.
Wedding agency platform
Developed a web application for a wedding agency to streamline client interaction
and service management. Focused on creating a modern, user-friendly interface and
integrating key business features.

Stack: React, next, typescript, redux, react-hook-forms, tailwind, shadcn

Implemented basic UI components using shadcn/ui for a consistent and scalable
design system.
Built a multi-step listing form for companies to create services with photos,
videos, descriptions, availability, and optional extra packages.
Developed a dashboard interface where companies can view, edit, and manage
their services and packages.
Ensured smooth UX and responsiveness across devices with modern frontend
technologies.

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