Roman Walden

Backend Engineer & Systems Architect

Building high-throughput services, data pipelines, and infrastructure that stays up. Also milling custom wood parts and designing small boats.

Stack

Languages Python, Go, Rust, SQL, TypeScript
Frameworks Django, Django REST Framework, Celery, FastAPI
Databases PostgreSQL, Redis, SQLite, ClickHouse
Messaging Kafka, Redis Pub/Sub, AWS SQS
Infrastructure Docker, Linux, Nginx, systemd, AWS, Terraform
Observability Prometheus, Grafana, Sentry, structured logging

Systems

  • Payment Orchestration API Django / Postgres / Redis
  • Real-time Analytics Pipeline Python / Kafka / ClickHouse
  • Multi-tenant Auth Platform Django / OAuth2 / JWT
  • CNC G-code Generator Python / SVG / GRBL

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