Hybrid Data Developer

at Trendyol Group

• Job title: Data Developer
• Job type: Full Time
• Experience level: Mid level, Senior
• Salary: Not specified
• Degree requirement: Bachelor's Degree
• Tech skills: Airflow, Apache, BigQuery, Cloud, Docker, ETL, Google Cloud Platform, Java, Kafka, Kubernetes, Python, Spark, SQL, Terraform
• Location requirements: Hybrid, Istanbul, Turkey

About the role

• Data Developer at Trendyol building data-driven infrastructures for financial technology. Collaborating with teams to enable seamless data flow and drive business insights through reliable data management.

Responsibilities

• As a Data Developer, you will act as the bridge between raw data and meaningful business insights. You will create the infrastructure that powers our data-driven initiatives, building pipelines and systems that connect disparate data sources and ensure the seamless flow of information. You will play a key role in how we leverage data to make informed decisions by transforming, loading, and managing data so that it is reliable, accessible, and ready for analysis.
• Architect and maintain efficient, reusable and reliable data systems.
• Design data models and data warehousing solutions that support analytics and reporting across the business.
• Collaborate with data scientists, analysts to understand data needs and deliver high-quality, trusted data products.
• Optimize performance of data processes, including monitoring and troubleshooting jobs, managing resource consumption.
• Enforce governance, security and compliance standards, including data quality, lineage, reliability.
• Stay current with data technologies and recommend improvements to existing infrastructure and architecture.

Requirements

• Bachelor's degree in Computer Science, Engineering, Management Information Systems, Mathematics or related field.
• Proficiency in developing data pipelines and ETL/ELT workflows using python, spark or SQL.
• Advanced SQL skills and familiarity with structured/unstructured data formats. (Parquet, Avro, JSON)
• Deep understanding of data processing and optimization in cloud environments. (GCP preferred)
• Experience with workflow management platforms. (Airflow preferred)
• Familiarity with containerization technologies like Docker and orchestration tools like Kubernetes is preferred.
• Experience with real-time data processing and streaming technologies.
• Proficiency in at least one programming language. (python preferred)
• Familiarity with modern data architectures including data lakes, data lakehouses and table formats. (Apache Iceberg, Hudi etc.)
• Experience with CI/CD pipelines, Git, and Infrastructure as Code (e.g., Terraform) preferred.
• Working with AI technologies — including building and experimenting with AI agents, LLMs, and automation. — to create innovative data solutions (plus)
• Our Technology Stack: Google Cloud Services, BigQuery, Git, CI/CD, Vertica, python, Java, Kafka, CDC, Airflow, Docker, Kubernetes.
• Able to communicate effectively in English, both verbally and in writing.
• Detail-focused with strong problem-solving and result-oriented skills.

Benefits

• A hybrid working model with flexibility — a schedule that helps you find the right balance between flexibility and team bonding, including work-from-abroad opportunities and a summer working model.
• A customizable FlexBenefits budget — Adjust your daily meal allowance, choose your health insurance package (and extend it to your spouse or children), and pick from additional benefits like fuel support or Trendyol shopping credits.
• Comprehensive wellbeing support — Take advantage of our extended health package, which includes annual mini health screenings, access to location-based in-house doctors, psychologist and dietitian support, and HPV vaccination coverage.
• Personalized training allowance and learning opportunities — Use your annual budget for any training or conference of your choice, explore our Learning Management System (LMS) anytime, and join in-person learning sessions offered throughout the year.
• Responsibility from day one — Take full ownership from the start in a culture where every voice is heard and valued.
• A diverse, international team — Collaborate with global peers across our offices in Berlin, Amsterdam, Dubai, and beyond, in a startup-spirited and collaborative environment.
• Opportunities to grow with the best — Tackle meaningful challenges, develop through hands-on experience, and grow with the support of expert guidance and global mentoring.
• Meaningful connections beyond tasks — Be part of team rituals, events, and social activities that help us stay connected and inspired.