Data Developer

About the Team
At Trendyol Tech, our mission is to create a positive impact in our ecosystem by enabling commerce through technology.
We solve complex problems with data, creativity, and agility — always driven by real outcomes. With a culture built on learning, collaboration, and ownership, we grow together while building what’s next.

About The Role:
• 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.

Responsibilities :
• 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.*

Expected Qualifications:
• 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.
• 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 (plus)
• 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)
• Familiarity with microservices architecture principal and patterns.
• Our Technology Stack: Google Cloud Services, BigQuery, Git, CI/CD, Vertica, python, Java, Kafka, CDC, Airflow, n8n, Docker, Kubernetes
• Able to communicate effectively in English, both verbally and in writing
• Detail-focused with strong problem-solving and result-oriented skills

What We Offer
- 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.
- Customisable 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.
- Well-being support: Access to location-based in-house doctors, as well as psychologist and dietitian support, and HPV vaccination provision.
- Personalised 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.

Take the Next Step
If this role excites you, apply today, we look forward to taking the next step with you.
Want to get to know the team better first? Explore our Career Website, LinkedIn, or YouTube to learn more about #LifeatTrendyol and how we work.