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Barış Yaşar

@baryaar

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Full-Stack Developer who built e-commerce and scholarship platforms with React, Node.js, and PostgreSQL.

Turkey

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At Osi, I worked as a Full-Stack Developer on Nanografi, an e-commerce platform for chemical materials, using React, Node.js, and PostgreSQL.

I also worked on a scholarship application tracking system used by over 5,000 candidates, built with React, Node.js, MongoDB, and AWS.

At Oak Technology, I worked as a Frontend Developer on Smart Chatbot AI, a platform for creating chatbots and images with AI models. Its stack included React, TypeScript, and Firebase.

My personal projects include Wonderlic, a reasoning-skills testing application, and Training House No: 4, a mobile fitness app whose MVP is available on Google Play. I use Next.js, TypeScript, and Docker on Wonderlic, and React Native and Supabase on Training House No: 4.

Experience

Work history, roles, and key accomplishments

Frontend Developer

Oak Technology

Sep 2024 - Jan 2026 (1 year 4 months)

Developed frontend features for a chatbot platform and a centralized dashboard, using React and Next.js. Implemented user behavior tracking and management dashboards with RBAC/ABAC.

React Redux Tanstack Query Shadcn Ui Tailwind Firebase Paddle S3 Sentry TypeScript Next.js CDN CI CD Pixel TanStack Router NestJS MongoDB JWT

Full-Stack Developer

Osi

Jun 2022 - Sep 2024 (2 years 3 months)

Developed a comprehensive e-commerce platform for chemical materials and a scholarship application used by over 5000 candidates. Worked on both frontend and backend using React, Node.js, and various databases.

React Redux NodeJS Express PostgreSQL Stripe Iyzico JavaScript MongoDB AWS EC2 S3 REST MUI

Full-Stack Developer

Personal Works

Developed a cognitive assessment web application and a mobile fitness app. Utilized modern web and mobile technologies including Next.js, React Native, and cloud services.