# Kaan Caliskan > Software Engineer specializing in distributed systems and high-throughput fintech infrastructure. ## About Distributed systems engineer focused on high-throughput fintech infrastructure, with full-stack experience building end-to-end solutions across backend services and user-facing interfaces in fast-paced environments. Based in New York City. Also known as Kaan Çalışkan. Primary site: https://www.kcaliskan.com ## Experience - Clear Street (current) — Capital markets infrastructure for broker-dealers, hedge funds, ETF issuers, and traders. Clearing, Settlement & Custody team, building gRPC microservices in Go for the full trade lifecycle. - Mastercard — Click to Pay; built SDKs and APIs powering checkout experiences. - E*TRADE — Client Experience team; rebuilt the login UI with TypeScript and React. - Leo AR ## Expertise - Distributed systems design and implementation - High-throughput fintech infrastructure - Backend development with Go (Golang) and TypeScript - Database design and optimization with PostgreSQL - Microservices architecture - Event-driven systems with Kafka - Container orchestration with Kubernetes - Service communication via gRPC and REST APIs ## Interests - Mechanical Keyboards - Tolkien's Legendarium - Dune Universe - Handheld Gaming ## Links - LinkedIn: https://www.linkedin.com/in/kaancaliskan/ - GitHub: https://github.com/kcaliskan - kaan.dev: https://kaan.dev