Андрій

Andrii Paniuk

Full-stack developer
Contact Work Experience
[open contact info](look above in the "contact info" section) Freelance Full-stack developer (part-time)
[open contact info](look above in the "contact info" section)
Architected and built core platform features using Next.js (App
[open contact info](look above in the "contact info" section) Router) with server-side rendering (SSR).

Integrated headless Shopify via Storefront API to manage
product inventory, orders, and secure payments, enabling a
seamless admin-to-customer experience.

Education
Collaborated closely with designers to implement a fully
responsive, pixel-perfect UI/UX that maintained consistency
WUNU across all device breakpoints.

Bachelor, Cyber security
Tech Stack: Next.js 15 (App Router), React, TypeScript, NestJS,
Zustand, Shopify Storefront API, Tailwind CSS.
IT Step
Full-stack development Miro Front-end developer

Led the migration of a critical product module from AngularJS to
WSZiA w Opolu React, improving code maintainability and enabling faster feature
Business management development.

Designed and implemented a custom client-side state
management solution to replace the legacy Cerebral library,
reducing state-related bugs by ~20%.

Skills Contributed to the micro-frontend architecture, ensuring
independent deployment and scalability of feature teams.

JS/TS
Owned the refactoring of key UI components to align with a new
.NET Core
design system, improving consistency and reducing CSS bundle
size.

ASP.NET

Tech Stack: React, Next.js, React Native, Redux, Docker, Java
Entity Framework

SQL / NoSQL
RadiantRFID Full-stack .NET developer
React / Next.js

Vue / Nuxt.js
Led the frontend modernization initiative: Spearheaded the
migration from legacy AngularJS to a modern React-based
Redux Toolkit / Zustand
architecture, improving UI performance and developer
productivity.

TailwindCSS

Owned the full rewrite of platform modules: Rebuilt core
Shadcn
application features from monolith to a modular architecture
using .NET 6 (ASP.NET Core Web API) and React, establishing
Git
new coding standards and best practices.

Github Actions

Tech Stack: ASP.NET Core, .NET 6, React, TypeScript, Zustand,
Figma Material-UI, SQL Server, AWS (EC2, S3), Docker, Jenkins.