Umut Korkmaz

A comprehensive workflow modernization project for Digiturk, upgrading ~100 critical legacy workflows from ASP.NET 3.5 to a modern stack using React and .NET 10 API. Uses Redis selectively for high-throughput workflow/cache paths such as survey slides and stationery workflows, while keeping core Oracle-backed business state authoritative.

A cross-platform mobile portal application (iOS & Android) built with React Native for Digiturk employees. Provides seamless access to company announcements, events, and workflows, replacing the legacy system as a unified internal communication hub.

Multi-module B2B supply-chain and e-commerce platform with three distinct trade models tailored to different business workflows. Led an engineering team across frontend and backend, covering 40+ industry categories and a catalog of 10,000+ product categories. Configured Redis-backed distributed cache paths for scalable catalog/admin workloads and payment-conversation state, alongside CI/CD and PR-based delivery.

Turkey's developer marketplace platform connecting clients with software developers. Features AI-powered developer matching, automated project analysis, budget/timeline estimation, CV-based skill scoring, and a robust admin panel with escrow and dispute management.

Hosting, domain, server, and customer-management platform supporting commercial operations — comparable in scope to WHMCS. Runs on a high-availability stack achieving 99.9% uptime using HAProxy, Patroni, PgBouncer, etcd, keepalived, and Bind9.

An e-commerce website built with modern web technologies, featuring responsive design, product management, and seamless user experience. Associated with Makdos.

A complete, auditable, from-scratch LLM stack in PyTorch — a hand-written decoder-only Transformer (GQA, RoPE, RMSNorm, SwiGLU, KV-cache) with the full pipeline: byte-level BPE tokenizer, pretrain, SFT, DPO, GRPO/RLVR, eval, RAG/agent/tools, an OpenAI-compatible serve API, and safetensors export. Trains a chat-capable model end-to-end on your own machine (a ~1-minute MPS smoke run, or a 22M TinyStories model in ~43 min). Named after the Orkhon inscriptions — the oldest known Turkic writing.

Open-source .NET library shipping two NuGet packages: Meridian.Mediator (CQRS-style in-process request/response, notifications, streams, and pipeline behaviors) and Meridian.Mapping (object-to-object mapping with profiles, resolvers, converters, and query projection). Targets .NET 8–11.

An open-source full-stack development platform that unites microservices and microfrontends under a single CLI. Ships Docker-aware service scaffolds, Kubernetes/Helm/GitOps manifest generation, Kafka/Redis Streams async transport scaffolds, and Elasticsearch/ELK observability templates across .NET, Java, Rust, Python, and Node.js generators.

A council of AI reviewers for your code, in one CLI. Quorate convenes a multi-provider AI code-review council — running several models in parallel and synthesizing their verdicts into a single, actionable review.

An open-source Linux distribution with a Turkish-language command layer — making the terminal accessible to Turkish-speaking users through native-language commands on top of a familiar Linux base.

An open-source (MIT) VS Code extension for automatic developer time tracking and productivity analytics — a privacy-first alternative to WakaTime. Ships with a local SQLite store, heartbeat monitoring, idle detection, language/project breakdowns, keystroke velocity and code-churn insights, and an optional REST API for external integrations.

A live gallery of 112 UI design styles/archetypes with full design-system specs (palette, typography, tokens) rendered on-device.

An events companion mobile app connecting people to attend events together. Expo React Native app (iOS & Android) backed by an Express + TypeScript API with MongoDB and Socket.io real-time messaging, a React/Vite admin panel, and a self-hosted Expo Updates server for OTA delivery. Features Google/Apple sign-in, maps and location, in-app purchases, and push notifications.

A 24/7 courier & logistics platform for motorcycle and vehicle couriers serving individual and corporate customers. Features shipment creation, real-time package tracking, ETA calculations, and tiered corporate pricing — optimized for intra-city deliveries in Istanbul.

An interactive e-commerce platform for custom furniture with a real-time 3D configurator powered by Babylon.js. Customers can visually customize products before purchase with integrated payment processing via iyzico.

A digital export portal enabling Turkish businesses to reach global markets. Features catalog management, inquiry workflows, tiered memberships, and admin tooling for cross-border sales enablement; Redis backs Socket.io notification counters so real-time messaging and unread counts stay fast as traffic grows.

A digital legacy and security mobile app that delivers user-curated content to designated recipients under defined trigger scenarios.