Data Engineer

At iyzico, the Data Platform team builds the backbone behind analytics, reporting, and AI across one of Türkiye’s largest payment platforms. You’ll work on a large-scale distributed data warehouse and real-time CDC pipelines - at genuine scale, in a regulated environment. A growing part of this work is our governed, in-house LLM platform - used to turn natural language into trustworthy analytics, automate data workflows, and build data products that engineers and analysts can rely on. This is a role for engineers who want to own data problems end to end, from raw event to production.

What you’ll do

• Build, operate, and own batch and streaming data pipelines end to end
• Write and optimize SQL against a large-scale distributed PostgreSQL warehouse
• Design and evolve data models and ETL/ELT processes
• Develop and maintain orchestration with Apache Airflow
• Build real-time data flows with Kafka and CDC
• Own data quality, governance, and observability - the checks, monitoring, and alerting you actually trust
• Investigate pipeline and data issues to root cause, and ship durable fixes
• Help run the data platform itself: install, configure, and troubleshoot its components
• Build on our in-house LLM platform: retrieval-augmented data pipelines, natural-language-to-SQL over the warehouse, and analytics automation - with correctness and governance built in

What we’re looking for

• 2-3 years of experience
• Strong SQL and query optimization
• Solid grasp of relational databases and data modeling
• Hands-on Python for data processing and automation
• Working knowledge of ETL/ELT and pipeline design
• Comfort in a Linux/CLI environment
• Git, code review, and testing as part of your normal workflow
• A problem-solver who can dig into unfamiliar systems independently
• Ownership: you take a problem from investigation all the way to production

Nice to have

• PostgreSQL / Citus at scale
• Kafka, Debezium, or other streaming/CDC tooling
• Airflow or another orchestrator
• Data quality, monitoring, or observability tooling
• Linux-based data platform administration
• Experience with LLM/AI-based systems
• Fintech or payments background

What We Offer

• A culture of continuous development: conferences, in-house events & Tech Talks to stay up-to-date on current research and technology. P.S.:You do not need to wait to get on the stage and share your expertise with you teammates and the community
• Online Training Platform (Free access to Udemy, Harvard ManageMentor, Get abstract, etc.),
• Freedom under responsibility is our common mindset. That’s how we designed our flexible working model called,
• iyzico Homequarters. Our homequarters is in Altunizade,
• Meal & Internet Allowance,
• Transportation Allowance,
• A gift voucher to meet tech needs and ergonomic workspace at home,
• Macbook (and monitor if needed),
• Employee support program: free psychological counseling, legal advice, financial advice etc.
• Private health insurance,
• 1 day birth day leave,
• An iyzicoMate is assigned to help you with anything you may need on your onboarding,
• A detailed orientation program designed for you to fully grasp the iyzico culture.