Software Engineer · Backend & Distributed Systems
I design, build, and operate large-scale backend systems — 6+ years across e-commerce and fintech, on services used by millions of people daily. Strong advocate of TDD, CI/CD, observability, and root-cause-driven engineering.
- Seller finance @ Trendyol — backend services powering financial reporting for merchants: earnings calculations, commission management, account statements, and integrations with governmental tax systems.
- Catalog & product onboarding @ Trendyol — ingestion systems validating, enriching, and publishing seller-submitted product data at scale, with workflows routing invalid data to operational teams.
- Campaign automation & merchandising @ Trendyol — systems that auto-generate campaign creatives and manage product placements, delivering hundreds of campaign assets to millions of customers daily.
- Cloud-native migrations — led migration of legacy systems to cloud-native architectures, improving scalability and deployment reliability.
- Payments @ Inventiv — acquiring services for 50,000+ Multinet merchants; QR payments for GastroPay (including KFC Turkey), pay-by-link card payments, and IstanbulKart as a payment method on POS devices.
- Backend — Go · Java · Kotlin · Spring Boot · Ktor · .NET
- Data & messaging — PostgreSQL · Couchbase · Elasticsearch · MongoDB · Apache Kafka · RabbitMQ
- Platform & observability — Kubernetes · Docker · Istio · Prometheus · Grafana · New Relic · ArgoCD · Jenkins
- Frontend — Vue.js · Nuxt.js · TypeScript
- Practices — TDD · integration & E2E testing · event-driven architecture · incident management & RCA