Experience
Building and operating backend systems with Node.js, TypeScript, and AWS across production environments.
Retter.io
Senior Backend Engineer
I work on backend systems for IGA Duty-Free’s Unifree platform across serverless and containerized architectures in production. I developed a purchase limit system using Node.js, TypeScript, and Fastify, integrating external MSSQL data and internal transaction flows backed by MongoDB. I implemented Redis caching and event processing via RabbitMQ to support asynchronous flows and maintain responsiveness. I also built a serverless stock tracking system on AWS Lambda to maintain per-store inventory state and update stock after purchases. Additionally, I contributed to backend features for Wizzo, using Amazon Neptune (graph data) and Elasticsearch for real-time/social use cases.
Yıldız Tech
Senior Backend Engineer
I worked on backend systems in the e-commerce/retail domain, focusing on real-time integrations and event-driven architectures. I developed a real-time stock control integration between CepteSok and Istegelsin, ensuring reliable propagation of stock updates and data consistency across systems. I also contributed to order, checkout, and payment-related backend flows, working with REST-based integrations and asynchronous communication patterns with a focus on reliability and correctness.
Istegelsin (via Patika Global)
Senior Backend Engineer
I led development of a scalable serverless e-commerce backend built on AWS using Node.js and event-driven principles for reliability and growth. I worked on core services responsible for catalog, checkout, and order processing, focusing on low-latency responses and fault-tolerant backend design. I also integrated third-party payment providers (including Edenred and Sodexo) via payment gateways to expand checkout options while keeping flows consistent and maintainable.
Istegelsin (via Patika Global)
Backend Engineer
I worked as a backend engineer on a serverless e-commerce platform built on AWS. I developed backend services using AWS Lambda and API Gateway and contributed to DynamoDB data modeling based on access patterns and scalability requirements. I delivered core commerce features such as catalog, checkout, and order management, prioritizing maintainability, performance, and operational simplicity in production.
Faselis
Backend Developer
I independently developed and maintained a fully serverless internal backend system on AWS to support internal business workflows with minimal operational overhead. I owned the backend end-to-end, including architecture, implementation, deployment, and maintenance. The system prioritized simplicity, scalability, and long-term maintainability, and strengthened my experience in end-to-end backend ownership and cloud-native design.
BiSU
Backend Developer
I developed backend APIs for a consumer-facing mobile application using Node.js and Express.js. I improved code quality by introducing unit tests for critical flows and iterating on existing API implementations to increase maintainability and reliability in production.
HepsiEmlak (via Keytorc) & Vodafone (via Wipro)
QA Engineer
I worked as a QA Engineer across large-scale digital platforms, executing functional and performance testing for backend-driven systems. I wrote SQL queries for backend validation, collaborated with engineering teams on test planning and defect analysis, and supported test automation and reporting workflows in enterprise QA environments.