Gamze Aydın's Work | ContraWork by Gamze Aydın
Gamze Aydın

Gamze Aydın

Software Engineer building smart web & API solutions

A full-stack enterprise integration and synchronization platform built with .NET 8 Clean Architecture and React 19/TypeScript that automates bidirectional data exchange—including products, inventory levels, sales orders, invoices, and accounting records—between Katana MRP and Luca Koza to eliminate manual data entry across production and finance workflows. The system features 45+ secure RESTful endpoints, role-based access control, and an event-driven architecture powered by SignalR for live dashboard updates, alongside Hangfire and Quartz.NET (http://Quartz.NET) background processing with Polly resilience policies for fault-tolerant external API sync. Backed by SQL Server, Docker containerization, structured audit logging, and intelligent SKU/BOM validation engines, the platform delivers a production-ready solution that bridges manufacturing operations with accounting compliance.
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An enterprise-scale, ERP-integrated e-commerce and delivery management platform built with React 18, ASP.NET (http://ASP.NET) Core 9, and Clean Architecture that unifies end-to-end retail and grocery operations—from customer storefront to dispatch and courier workflows. It features bidirectional Mikro ERP synchronization with automated conflict resolution, an order state machine with real-time updates broadcast across 5 dedicated SignalR hubs, and specialized handling for weighted goods with scale webhooks and balance reconciliation. Backed by SQL Server, Hangfire background jobs, Polly resilience policies, and secure Posnet virtual POS integration, the platform delivers a production-ready, containerized digital ecosystem designed for multi-role operational excellence.
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Engineered a high-throughput backend service powering an enterprise payment analytics dashboard at Jotform to track critical KPIs like revenue, conversion rates, and AOV across multi-currency and geospatial breakdowns. Implemented 8 robust RESTful endpoints with sub-second response times, eliminating memory bottlenecks through PHP generator-based chunked batch processing and optimizing complex SQL queries across unindexed EAV schemas with in-memory aggregations. Additionally, built a secure streaming CSV/Excel export pipeline with formula injection protection and UTF-8 BOM encoding for seamless international character handling.
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A full-stack stock monitoring and automation platform built with React, Node.js/Express, and Playwright that tracks real-time product availability across major Inditex brands like Zara, Bershka, and Stradivarius. It features headless browser scraping with automated anti-bot and cookie handling, live UI updates powered by Socket.IO (http://Socket.IO), and instant mobile alerts via WhatsApp Web.js automation whenever a selected size is back in stock, all managed through an intuitive, modular dashboard designed for concurrent multi-product tracking.
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