Koray Kocabas Email & Phone Number

Istanbul, Turkey

As the Chief Data Officer at DT, a top-tier tech company serving four betting companies, I lead a dynamic data team, fostering a problem-solving environment and encouraging career growth.My key achievements include:Data Team Leadership: I lead a high-performing team, emphasizing communication, motivation, and problem-solving.Data & Cloud Architecture Design: Using technologies like AWS Kinesis, SQS, Athena, Redshift, and EMR, I've created a robust, serverless multi-cloud architecture, also utilizing Azure Analysis Services.Data Warehouse Design: I've established an efficient data warehouse using SQL Server and Apache Airflow.Self-Service Systems: Implemented self-service systems with Power BI, Qlik, and Google Data Studio, promoting data-driven decision-making.Alert Notifications: Developed an alert system for real-time updates via email, Telegram, Teams, or the customer's platform of choice.Customer Insight Generation: Facilitated customer insight generation using SQL Server Reporting Services and third-party tools with SQL and Python.Data Science Applications: Applied TensorFlow, PyTorch, and Python to tackle business challenges, improve operational efficiency, and refine betting models.At DT, I've been pivotal in turning raw data into strategic assets, cultivating a data-centric culture, and guiding data-driven business decisions.

As the Director of Big Data Analytics at DT, I lead advanced analytics initiatives for four betting companies. I oversee big data infrastructure development using AWS Lambda, Athena, Redshift, AWS EMR, Azure Analysis Services and Azure Stream Analytics, while managing analytics platform architecture with Airflow. My team delivers predictive analytics solutions and real-time dashboards through PowerBi and custom developed projects. Key achievements include optimizing ETL processes, implementing machine learning models for betting accuracy, and driving data-informed decision making across the organization.

Istanbul, Turkey

As an instructor for the Data Science Certificate Programme at Istanbul Technical University, I have the privilege of guiding students on their journey into the fascinating world of data science.In this comprehensive 7-week program, I kickstart the journey by conducting the first week's lessons where I introduce the fundamental concepts of data science. My focus during this initial stage is to build a solid foundation for our students, ensuring they understand what data science is, its vast ecosystem, importance of cloud computing for building data science applications and the necessary skills and mindset required to excel in this domain.

Istanbul, Turkey

In my role as Product Development Manager at Argelog, I drive the evolution of our system that digitizes and simplifies the entire management process for R&D centers in Turkey. My responsibilities encompass pinpointing areas for enhancement, strategizing product upgrades, and positioning our product to compete globally, thereby facilitating efficient project management, reporting, alert systems, and automated financial and HR report generation for our clients.

Istanbul, Turkey

As an instructor at MEF University, I have the honor of fostering data literacy among our students at both master's and bachelor's level. I guide IT postgraduates through the intriguing world of Big Data and share my database design expertise with undergraduate Engineering students. My ultimate goal is to equip these future data science leaders with crucial skills for success. Witnessing my students secure roles in reputable companies' data departments is an unparalleled source of motivation for me.

Managed data analysis and Google Analytics teams at Hurriyet, driving data-driven decision-making and digital transformation. Led initiatives in data storage, real-time analytics, NLP, big data engineering, and cloud computing. Oversaw projects in building estimation models, automating reports, and developing R&D projects. Spearheaded the design of the data layer, implementation of Google Analytics, and development of JavaScript codes for Google Tag Manager. Implemented AB testing using Google Optimize and facilitated data visualization with Looker Studio. Passionate about leading motivated teams, taking ownership, and designing robust data architectures.

Newspaper Industry. I established the R&D department, wrote and developed R&D projects to support innovation and transformation in the field of journalism. I conducted fundraising efforts, encourage my team to write academic articles, and participated in innovation awards.

Transitioning from Yemeksepeti, I embraced new challenges as the Group Manager of Business Intelligence at Hurriyet. Leading a diverse team, I spearheaded the transformation of data analytics infrastructure, replacing Teradata with cloud computing. Managing high traffic and overcoming limited cloud experience, I navigated the complexities with determination.Revamping the data architecture, I empowered old-school professionals from the newspaper industry to embrace innovation. Together, we implemented cutting-edge cloud solutions, unlocking valuable insights and bolstering data analysis capabilities.

As a Senior Business Intelligence Developer at Yemeksepeti, I played a pivotal role in shaping the company's data-driven approach. I spearheaded the design of the data warehouse, automated reporting mechanisms, and contributed significantly to the due diligence process during the company's acquisition by Delivery Hero. One of my most rewarding projects was the development of personalized beverage and dessert recommendations, which directly boosted company revenue and detected fraudulent activities. Additionally, I led the creation of Fakatiyiyedik.com, a microsite that generated real-time video content based on users' order history. This innovative project garnered over 10 awards, including the prestigious Kristal Elma. Being at the heart of the company's transformation towards data-centricity from its inception was an immensely fulfilling experience.

Instructor, MIS Master Programme - Bahçeşehir University

Istanbul, Turkey

Integration Services, Reporting Services and Analysis Services

Istanbul, Turkey

Design Social CRM Infrastructure for top companies which are Forbes 500. Develop and Manage Social Business Intelligence Projects. Make Presentation and create(design) business process

Istanbul, Turkey

Develop and Manage Business Intelligence Projects, Application Database Operations

Istanbul, Turkey

Develop and Manage Business Intelligence Projects, ERP Integration, Project Management and Ongoing Business Support, Development of Internal Tools or Applications, Application Database Operations

Istanbul, Turkey

Develop and Manage Business Intelligence Projects, ERP Integration, Project Management and Ongoing Business Support, Development of Internal Tools or Applications, Application Database Operations

Istanbul, Turkey

Business Analysis Intern. Learning Logistic Regression, Discriminant Analysis, Statistical Models and Data Mining Algorithm for Banking Process

Master, Mba, 3.73

I have a Master's degree from Bahçeşehir University, specializing in the MIS (Management Information Systems) program within the MBA..

Bsc., Statistics, 2.82

Activities and Societies: Member of Yildiz Economy ClubI deliberately chose the Statistics department at Yıldız Technical University.

High School, High School, 4.69

Activities and Societies: Founder of School Newspaper1 year English Preparation + 3 year