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I am a performance-driven Product Engineer based in Geneva, focused on building resilient backend systems for financial products and distributed workflows. I am hands-on with Java (Spring Boot) and Ruby, delivering event-driven microservices, partner integrations, and automation using Kafka, Temporal, and Snowflake. I have experience delivering reliable, traceable financial workflows across internal services and external partners.…I am a performance-driven Product Engineer based in Geneva, focused on building resilient backend systems for financial products and distributed workflows. I am hands-on with Java (Spring Boot) and Ruby, delivering event-driven microservices, partner integrations, and automation using Kafka, Temporal, and Snowflake. I have experience delivering reliable, traceable financial workflows across internal services and external partners.

Tea Tosun

Full Stack Developer, Back-End Developer, Front-End Developer, +2

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I am a performance-driven Product Engineer based in Geneva, focused on building resilient backend systems for financial products and distributed workflows. I am hands-on with Java (Spring Boot) and Ruby, delivering event-driven microservices, partner integrations, and automation using Kafka, Temporal, and Snowflake. I have experience delivering reliable, traceable financial workflows across internal services and external partners.…I am a performance-driven Product Engineer based in Geneva, focused on building resilient backend systems for financial products and distributed workflows. I am hands-on with Java (Spring Boot) and Ruby, delivering event-driven microservices, partner integrations, and automation using Kafka, Temporal, and Snowflake. I have experience delivering reliable, traceable financial workflows across internal services and external partners.

Available to hire

I am a performance-driven Product Engineer based in Geneva, focused on building resilient backend systems for financial products and distributed workflows.

I am hands-on with Java (Spring Boot) and Ruby, delivering event-driven microservices, partner integrations, and automation using Kafka, Temporal, and Snowflake. I have experience delivering reliable, traceable financial workflows across internal services and external partners.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Spanish; Castilian

Intermediate

French

Beginner

Albanian

Fluent

Work Experience

Product Engineer at Inbank

June 1, 2024 - August 1, 2025

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.

Software Engineer Intern at Zemin Global

April 1, 2023 - July 1, 2023

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.