Experience & Education — Eren Çolak

Working on an internal content management system used by operations and marketing teams to manage banners, links, and dynamic storefront content.

• 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
• Collaborated with backend and product teams to integrate APIs and ensure reliable content delivery at scale
• Improved developer experience by introducing reusable patterns and component libraries

Freelance development of a web management panel for dietitians and clients, focusing on scheduling, payments reconciliation, and operational workflows.

• Built a centralized management panel for scheduling, client management, and payments reconciliation
• Integrated Google Calendar for appointment sync and automated reminders
• Implemented role-based access, responsive UI, and performance optimizations
• Replaced manual Excel workflows with streamlined admin tooling and operational dashboards

Implemented SSR and SSG in Next.js to improve SEO and redesigned responsive layouts using TailwindCSS.

• Implemented SSR and SSG patterns to improve search visibility and crawlability
• Redesigned responsive layouts for improved mobile and tablet experiences
• Contributed to the UI migration and collaborated on design + implementation decisions

Redesigned DeepSport landing and developed HitnessLab — a SaaS platform for instructors — using Spring Boot microservices and Next.js.

• Redesigned and rebuilt the landing page focusing on SEO and performance
• Built HitnessLab with Spring Boot microservices and Next.js frontend
• Designed performance tracking dashboards for coaches and athletes
• Integrated media upload and streaming workflows for instructors

Worked on deploying applications in Docker and Kubernetes environments, including AWS deployment tasks. Created reports and data visualizations using Power BI.

• Deployed containerized applications and assisted with Kubernetes setups
• Generated reports and visualizations in Power BI for operational stakeholders
• Supported daily system maintenance and user support tasks