Ezgi Dokuz
Curriculum vitae
enTR
Senior Data Engineer
Ezgi Dokuz
Senior Data Engineer with 5+ years of experience building and operating batch and streaming data pipelines. I work with Python, SQL, PySpark, Airflow, Kafka and PostgreSQL to turn complex source data into reliable datasets, with a focus on production reliability, data quality and end-to-end ownership.
15+production pipelinesBuilt and maintained · VodafoneZiggo, 2021–2025
Millionsof records processed dailyETL/ELT pipelines · VodafoneZiggo, 2021–2025
1–2 daysincident resolutionDown from ~1–2 weeks · VodafoneZiggo, 2021–2025
Experience
- Jan 2026–present
Senior Data Engineer
VodafoneZiggo- Own production pipelines for network analytics, from source integration and transformation through validation and operational support.
- Design and operate batch and streaming pipelines using Airflow, Spark, Kafka, PostgreSQL, MinIO/S3 and Iceberg.
- Improve reliability through monitoring, alerting and data quality controls.
- Review Airflow and Spark practices to support consistent, maintainable and reusable development.
- Contribute through code reviews, documentation and knowledge-sharing.
- Oct 2021–Dec 2025
Data Engineer
VodafoneZiggo- Built and maintained 15+ end-to-end ETL/ELT pipelines processing millions of records daily.
- Integrated databases, APIs, external providers, Kafka, sFTP and MFT into production-ready pipelines.
- Delivered datasets for network failures, fiber deployments, network-element usage and new-node deployment.
- Created custom Airflow operators and shared modules to improve reuse.
- Reduced incident resolution time from approximately 1–2 weeks to 1–2 days through Airflow monitoring and alerting.
- Led data projects end-to-end and organized 10+ knowledge-sharing sessions.
- Jun–Jul 2021
Software Engineer & Data Scientist Intern
TomTom- Built machine-learning models for trace direction (85% accuracy) and car vs. non-car classification (88% accuracy).
- Collaborated with software engineers on Java applications in a production development environment.
- Sep 2017–Sep 2019
Business Development Analyst
modanisa.com- Managed a CRM transition involving 500K+ customer records, improving customer-support response time by approximately 35%.
- Analyzed sales, marketing and customer data to inform regional campaigns and customer experience.
- Connected business and IT teams, translating requirements into development projects.
- Tools: SQL, QlikView, Google Analytics, Emarsys, Zendesk Insight, Jira and Confluence.
Training & certificates
- Apache Spark OptimizationsXebia · Oct 2024
- HPE Ezmeral Data Fabric & Unified Analytics FundamentalsHPE · May 2024
- Professional Scrum Product OwnerXebia · May 2024
- Apache Spark trainingXebia · May 2024
- Google Cloud Professional Data EngineerGET Certified Program · Mar 2024
- Apache Airflow trainingXebia · May 2023
- AWS Cloud Practitioner EssentialsGlobal Knowledge · Mar 2023
Contact
- Location
- Amsterdam, Netherlands
- in/ezgi-dokuz