Microsoft
Belgrade, Serbia
Software Engineer II
– PresentSoftware Engineer
–I am the primary maintainer for AI and Fabric Functions, collations, and T-SQL scalar UDFs in Fabric Data Warehouse.
I shipped ON ERROR in public preview for seven T-SQL AI functions and extended it to Fabric Functions. Parser, binder, and runtime changes let callers return a fallback value or stop a query on failure.
For AI-service authentication, I built token exchange so a user's queries on the same warehouse can reuse a cached token. Production traces showed about 90% fewer fetches than a modeled baseline of one per query per process.
I cut weekly serverless SQL metadata-sync alerts by over 70% year over year using failure-rate and per-workspace checks. Both the old and new monitors caught a dependency outage in side-by-side testing.
I validated filter pushdown and Parquet statistics to help ship case-insensitive collations on schedule.
I also shipped a fixed-memory P-squared estimator with allocation-free updates. Its per-thread P50/P90/P95 summaries report AI-call latency per query for production monitoring and regression checks.



