Backend Engineer — Node.js · TypeScript · PostgreSQL/SQL Server · Azure & AWS

Backend engineer with 3 years of professional experience building scalable, high-performance SaaS systems in Node.js and TypeScript.

At Brezna I delivered enterprise-scale backends for Avnet as part of a 10-developer team — REST APIs over datasets running from thousands to millions of rows during staging, where concurrency and idempotency are first-class design concerns rather than vocabulary. I optimised SQL Server query paths and benchmarked before and after on identical datasets, because an improvement you did not measure on the same data is a claim, not a result.

Alongside that I have independently designed, built and deployed production-grade services: a real-time ticketing API (Socket.IO scaled across instances via a Redis adapter, Postgres/Prisma), event-driven pipelines on RabbitMQ, Azure Service Bus and AWS SQS, and a serverless AI document-processing pipeline built on the Anthropic Claude SDK.

Three years of agentic AI development — both shipping LLM-integrated backends and using agentic coding workflows as a daily delivery tool.

Principles I work by: SOLID, KISS, DRY, YAGNI and clean architecture.

Based in Belgrade (CET), available for full-time remote work.