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About — Eren Çolak

ABOUT • STORY • JOURNEY • PASSION • INNOVATION • CREATIVITY • ABOUT • STORY • JOURNEY • PASSION • INNOVATION • CREATIVITY • ABOUT • STORY • JOURNEY • PASSION • INNOVATION • CREATIVITY • ABOUT • STORY • JOURNEY • PASSION • INNOVATION • CREATIVITY
ABOUT • STORY • JOURNEY • PASSION • INNOVATION • CREATIVITY • ABOUT • STORY • JOURNEY • PASSION • INNOVATION • CREATIVITY • ABOUT • STORY • JOURNEY • PASSION • INNOVATION • CREATIVITY • ABOUT • STORY • JOURNEY • PASSION • INNOVATION • CREATIVITY
DEVELOPER • CREATOR • INNOVATOR • PROBLEM SOLVER • DEVELOPER • CREATOR • INNOVATOR • PROBLEM SOLVER • DEVELOPER • CREATOR • INNOVATOR • PROBLEM SOLVER • DEVELOPER • CREATOR • INNOVATOR • PROBLEM SOLVER

QUICK FACTS

LOCATIONIstanbul, TR
EDUCATIONMarmara Uni.
EXPERIENCE1 Year

ABOUT ME

I’m a full-stack developer with a foundation in Python and data analysis, experienced in building real-world web platforms. I’ve worked with React/Next.js and Spring Boot/Node.js to develop admin panels, internal tools, and SaaS systems. At Hepsiburada, I contributed to large-scale content management tooling, and I’ve built operational dashboards, scheduling systems, and analytics-driven platforms that replaced Excel-based workflows.

I’m comfortable working across frontend and backend, integrating APIs, and using data analysis and reporting to drive better product and business decisions. I focus on clarity, observability and sustainable scaling while prioritizing measurable outcomes over premature complexity.

Domain DrivenPerformance MindedType SafeObservability Focused

Selected Experience

Notable projects: Trakya Rezonans web panel, Hepsiburada content-management tooling, and the DeepSport athletic dashboard UI.

Front-End Developer Intern

Hepsiburada • 10.2025 - Present

  • Developing the second version (v2) of the platform and rebuilding the admin interface with a modern, scalable React architecture
  • Built reusable components and management panels enabling real-time content updates across high-traffic pages

Full Stack Developer (Freelance)

Trakya Rezonans • 11.2025 - Present

  • Built a centralized management panel for scheduling, client management, and payments reconciliation
  • Integrated Google Calendar for appointment sync and automated reminders

Part-time Front-End Developer

DeepSport Athletic • 10.2025 - Present

  • Implemented SSR and SSG patterns to improve search visibility and crawlability
  • Redesigned responsive layouts for improved mobile and tablet experiences

MY JOURNEY

From curious beginner to passionate developer - here's how my story unfolded

2021

The Beginning

Began programming with Python, focusing on data analysis and visualization using Pandas, NumPy and Matplotlib. Built small projects to explore data-driven insights.

2022

Web Development Discovery

Shifted to web development: learned HTML, CSS and JavaScript, and started building interactive UIs with React. Launched responsive single-page projects and refined UX details.

2023

Full-Stack Evolution

Expanded into backend work with Node.js/Express and PostgreSQL, connecting APIs to frontends and shipping end-to-end applications. Focused on reliability and data modeling.

2024

Professional Growth

Gained hands-on industry experience during an internship at BRF - Banvit: containerized apps with Docker, supported Kubernetes deployments, and produced operational reports with Power BI. Strengthened collaboration and deployment workflows.

2025

Platform & Analytics

Led frontend and backend work across platforms — including the Trakya Rezonans web panel and Hepsiburada content-management tooling — and built the DeepSport athletic dashboard UI. Focus areas included performance tuning, SSR/SSG strategies, reusable UI components, and internal CMS/admin tooling that helped replace manual Excel workflows and surface analytics-driven insights.

WHAT DRIVES ME

The principles and values that guide my work and personal growth

Quality First

I believe in writing clean, maintainable code and creating user experiences that truly matter.

Collaboration

Great things happen when talented people work together. I thrive in team environments.

Innovation

Always looking for creative solutions and new ways to solve complex problems.

Passion

Genuine love for technology and continuous learning drives everything I do.

Growth Mindset

Embracing challenges as opportunities to learn and improve constantly.

Excellence

Striving for excellence in every project, no matter how big or small.