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Oguz K.
Data Scientist
Oguz is a seasoned Data Science professional with five years of commercial experience and strong Python and Data Science proficiency.
With a background that includes terms at Unilever and Experian, Oguz has honed his skills and expertise, making him a valuable asset in the field. His ability to effectively analyze complex datasets and deliver actionable insights sets him apart in the industry.
In addition to his primary focus on software engineering, Oguz's diverse skill set and experience make him a well-rounded professional ready to take on any challenge. With a PhD in Information Management, he brings a unique blend of academic rigour and practical know-how to his work.
Main expertise
- Data Science 5 years
- Python 5 years

- BeautifulSoup 5 years

Other skills
- Digital marketing 3 years
- eCommerce 3 years
- JSON 3 years

Selected experience
Employment
Senior Machine Learning Engineer
Directful - 2 months
• Designed and deployed an ML-based record linkage system for hotel booking data, using probabilistic matching algorithms to improve customer data completeness by 12%, enabling better tracking of customer behavior and spending patterns;
• Implemented an automated booking prediction framework covering 400+ hotels and 25M+ customers, leading to a 17% increase in conversion rates by replacing manual decision processes;
• Built and maintained scalable data pipelines integrating multiple data sources with automated weekly predictions and monthly retraining schedules;
• Architected end-to-end MLOps solutions on Kubernetes, ensuring reliable model deployment and performance monitoring;
• Led the development of containerized APIs and automated CI/CD pipelines, streamlining the deployment process and improving system reliability;
• Collaborated with product and business teams to align technical solutions with business objectives and measure impact;
• Integrated external data sources and implemented dynamic feature selection to enhance model performance and adaptability;
• Developed comprehensive monitoring systems to track model performance and data quality in production;
• Optimized model training and inference pipelines to handle large-scale data processing efficiently;
Technologies:
- Technologies:
Docker
AWS
Databricks
Python
AWS SQS
Kubernetes
AWS S3
- Data Science
XGBoost
Pandas
DynamoDB
- MLOps
SciPy
Scikit-learn
Apache Airflow
- Data Analytics
Snowflake
- Data Modeling
Microsoft Power Automate
Large Language Models (LLM)
- Pipeline optimization
Senior Analytics Consultant
Experian - 8 months
- Implemented income estimation, loan limit estimation, and probability of default models to replace manual decision-making processes with automated ML frameworks for a public bank in Turkey;
- Designed and developed CRM segmentation and propensity-to-buy models for a private bank using customer data to enhance the effectiveness of marketing campaigns;
- Conducted data preprocessing, feature engineering, and model selection to optimize model performance and accuracy;
- Oversaw the deployment of machine learning models into production, ensuring seamless integration with existing systems and processes;
- Stayed updated on the latest developments in machine learning and data science to ensure the application of best practices and state-of-the-art techniques.
Technologies:
- Technologies:
NumPy
Pandas
VSCode
Scikit-learn
- Data Analytics
Random Forest
Machine Learning
Data Scientist & Consultant
Freelance - 2 years 6 months
-
Provided data science and analytics services for ad-hoc projects, demonstrating a strong commitment to delivering data-driven insights and solutions;
-
Developed a multiclass clustering pipeline by utilizing embedding techniques, specifically Bio ClinicalBERT, combined with neural network models. This pipeline was employed to predict patient ICD codes based on hospital reports for a medical startup company;
-
Successfully implemented campaign digital performance prediction models for an e-commerce company, enabling data-driven decision-making in their marketing efforts;
-
Employed anomaly detection models to identify and highlight unusual patterns or outliers in the digital campaign performance data, helping the e-commerce company proactively address issues and optimize their strategies;
-
Collaborated closely with project stakeholders to gather requirements, understand project objectives, and define success criteria;
-
Conducted data preprocessing, feature engineering, and model development, ensuring the robustness and accuracy of the solutions provided;
-
Leveraged state-of-the-art data science and machine learning techniques to deliver high-quality and actionable insights to clients;
-
Maintained effective communication with project teams, providing regular updates on project progress and addressing any questions or concerns;
-
Demonstrated adaptability and a problem-solving mindset when faced with complex and challenging data science tasks;
-
Contributed to the success of medical startup and e-commerce companies by delivering data-driven solutions that improved their decision-making processes and overall performance.
Technologies:
- Technologies:
NumPy
Pandas
Matplotlib
- NLP
Machine Learning
-
Data Engagement Lead
Unilever - 2 years
- Implemented NLP and clustering models to effectively segment Unilever's digital consumer landscape based on online behavior data, enhancing the company's understanding of its customer base;
- Designed and oversaw the rollout of a Power BI dashboard platform, which aggregated real-time marketing and social analytics data, making it a valuable tool for decision-makers within the organization;
- Achieved recognition by having the Power BI dashboard platform included in Unilever's Top 20 most active dashboards globally, reflecting its high impact and usage across the company;
- Strong analytical and technical skills in utilizing NLP and clustering techniques to extract meaningful patterns from large datasets, driving data-driven decision-making at Unilever;
- Contributed significantly to Unilever's market understanding and marketing effectiveness by providing data-driven insights and user-friendly dashboards that aided strategic planning and execution.
Technologies:
- Technologies:
- Data Analytics
- NLP
Machine Learning
Digital Business Models Specialist
Unilever - 10 months
- Played a pivotal role in designing the data collection frameworks for Unilever's inaugural B2B (Business-to-Business) and D2C (Direct-to-Consumer) brands;
- Demonstrated a solid ability to strategize and implement data collection processes that aligned with Unilever's goals and objectives, contributing to the company's data-driven decision-making capabilities;
- Maintained a keen focus on data privacy and compliance, ensuring that all data collection activities adhered to relevant regulations and industry standards;
- Continuously monitored and refined the data collection frameworks to adapt to changing market dynamics and consumer behaviors, enhancing Unilever's ability to stay agile and responsive in the marketplace;
- Ultimately, it was pivotal in laying the foundation for data-driven insights and personalized customer experiences for Unilever's B2B and D2C brands, contributing to their growth and success.
Technologies:
- Technologies:
- Data Analytics
Future Leaders Programme Trainee — IT Digital Marketing
Unilever - 1 year 7 months
-
Assumes responsibility for overseeing all Google Analytics implementations across brand and campaign websites, ensuring accurate tracking and data collection;
-
Manages the setup and configuration of Google Analytics for multiple websites, ensuring that the tracking code is correctly deployed and tracking goals are defined;
-
Collaborates with stakeholders to define and document key performance indicators (KPIs) for digital performance measurement, aligning reporting with business objectives;
-
Regularly monitors and analyzes website traffic and user behavior using Google Analytics to provide actionable insights for optimizing digital strategies;
-
Generates comprehensive reports and dashboards to track digital KPIs, presenting findings to relevant teams and stakeholders;
-
Conducts data quality checks and troubleshooting to address any issues or discrepancies in Google Analytics data;
-
Stays up-to-date with industry best practices and Google Analytics updates to continuously improve tracking and reporting processes;
-
Ensures data privacy and compliance by implementing appropriate settings and configurations within Google Analytics;
-
Works collaboratively with web development and marketing teams to implement tracking enhancements and improve data accuracy;
-
Provides guidance and training to team members on Google Analytics and digital performance reporting to enhance the team's analytical capabilities.
Technologies:
- Technologies:
- Data Analytics
-
Education
Doctor Of PhilosophyInformation Management
NOVA IMS University · 2023 - 2026
MSc.Data Science and Advanced Analytics
NOVA IMS University · 2020 - 2023
BSc.Electrical and Electronics Engineering
Koç University · 2012 - 2016
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