Tea Tosun

Designed and built a workflow-driven reporting pipeline with Temporal and Snowflake, reducing manual finance operations by 35% and cutting reporting turnaround from days to hours. Participated in end-to-end integrations for partner deposit flows, improving data quality and accelerating onboarding and releases. Implemented Kafka-based event processing with Transactional Outbox/Inbox across Java and Ruby services, improving resilience and minimizing lost/duplicate-event incidents during retries and failures. Contributed to a new loan add-on platform, increasing attach rate and contributing to incremental revenue, while reducing manual servicing through automated lifecycle handling. Incrementally migrated core domains to Spring Boot microservices, introducing cleaner APIs (REST, gRPC) and frontend improvements in Vue/Nuxt.

Full-Stack Delivery (Java, Spring Boot, React): implemented backend APIs and UI components for real-estate analytics dashboards, focusing on performance, maintainability, and clean API contracts. Automation & Data Ingestion: built web scraping and CSV automation tooling to streamline data collection/cleanup. Stakeholder Collaboration: translated requirements into shipable UI/UX improvements and iterative product features.