Hi, I'm
Eren Tin
Full-Stack Developer
Building scalable web & mobile applications with JavaScript, PHP, and cloud solutions. Skilled in delivering end-to-end projects with strong problem-solving and attention to detail.
About Me
Full Stack Developer with experience in JavaScript (React, React Native, Node.js), PHP (Laravel), and cloud solutions (AWS, Azure).
Skilled in building scalable web & mobile applications, designing REST APIs, and delivering projects end-to-end with attention to detail and strong problem-solving skills. Currently working at Cozmopol, building interactive 3D shopping experiences and real-time communication systems.
Education
My academic journey
M.Sc. in Information Technologies
Sakarya University
Sakarya, Turkey

B.Sc. in Mathematics & Computer Science
Istanbul Kultur University
Istanbul, Turkey
Work Experience
Professional journey and achievements
Cozmopol
CurrentFull-Stack Developer
- •Built interactive 3D shopping experiences with React.js & Three.js, improving user engagement and time on platform
- •Developed scalable Node.js + MongoDB APIs, ensuring high-performance data processing for thousands of concurrent users
- •Implemented real-time communication systems with WebSocket & Socket.IO, reducing latency in multi-user interactions
Ferisoft
Full-Stack Developer
- •Led live vehicle auction system and automated bidding bots, processing thousands of price quotations in real time
- •Delivered FinTech solutions by developing secure backend workflows and dashboards, improving transaction reliability
- •Managed projects independently, improving delivery efficiency and establishing strong full-stack expertise
Ketencek I.T.
Junior Back-end Developer
- •Developed backend features for B2B platforms using Laravel, enhancing system performance and reliability
- •Designed and optimized database structures (MySQL/PostgreSQL) for faster queries and better data integrity
- •Collaborated directly with clients and managers, translating business requirements into technical solutions
MOTOR AŞİN
Front-end Developer Intern
- •Contributed to corporate frontend projects, strengthening teamwork and professional communication skills
- •Gained practical experience in SQL databases and enterprise-level IT workflows
Featured Projects
Real-world applications and solutions I've built

Cozmopol | 3D Virtual Shopping Mall
Developed immersive 3D shopping experiences with React.js, Three.js and scalable APIs with Node.js & MongoDB. Built real-time communication system with WebSocket & Socket.IO for multi-user interaction.
Tech Stack:

Bayraktar TB2 | 3D Interactive Configurator
Interactive 3D simulation of Bayraktar TB2 UAV built with Three.js. Features detailed 3D model exploration, technical specifications, and realistic simulations. Users can inspect every part and learn about the aircraft's capabilities.
Tech Stack:

BidToBuy | Vehicle Live Auction System
Designed a vehicle auction platform with automated bidding bots using Laravel, MySQL, JavaScript. Optimized business processes by automating real-time price quotations for customers.
Tech Stack:

Kilsan | Custom B2B e-Commerce
Built a B2B e-commerce system for Turkey's largest brick manufacturer using Laravel, Livewire, Tailwind, Docker. Delivered full-stack solution within strict deadlines, improving digital transformation.
Tech Stack:

Orca Trading Bot
Multi-exchange trading bot with AI-driven strategies. Enabled futures trading via Telegram commands and web interface. Integrations with Binance, Bybit, and BingX. Implemented AI to analyze market data.
Tech Stack:
Skills & Technologies
Technologies and tools I use daily
Frontend Development
Backend Development
Databases
Cloud & DevOps
Tools & Methodologies
Certifications & Achievements
Professional certifications and continuous learning