Backend and distributed systems  ·  Go, gRPC, event-driven architecture
Software Engineer  ·  Contributor to CNCF-hosted projects

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A pattern runs through most of what I contribute upstream: software that fails silently.

In the Prometheus TSDB, querier cleanup discarded the error from Close(). On multi-block queries a failing block would surface as a successful query with missing data: no error, no log line, nothing for an operator to page on. I used errors.Join() to preserve concurrent cleanup failures alongside the primary error, so the failure reaches the caller instead of vanishing. Issue #19114 · PR #19120

The same shape appeared in the OpenTelemetry C++ SDK. EnvironmentCarrier::NormalizeKey() did not normalize the empty key, so Get("") and Set("") quietly operated on the wrong slot rather than erroring, a spec violation against opentelemetry-specification#5163. The fix also removed a now-unreachable !empty() guard, documented why the caching layer is a string_view lifetime and thread-safety requirement rather than an optimization, and added two regression tests verified to fail without the patch. Issue #4190 · PR #4264

The Metrics SDK had the same problem one layer up: cardinality limits were hardcoded to 2000, and configuration supplied by the user was logged as unsupported and thrown away. I added a CardinalityLimits struct with per-instrument-type fields, exposed GetCardinalityLimit(InstrumentType) on MetricReader and as a pure virtual on the CollectorHandle interface, and resolved the declarative YAML path through a zero-as-unset sentinel so an explicit 2000 counts as a real override rather than an absent one. The same change fixed undefined behaviour from uninitialized configuration members, and the default stayed a namespace-level constexpr to avoid the out-of-class definition C++14 would demand of an ODR-used static member. Issue #3292 · PR #4188

Same SDK, different gap: minimum_severity and trace_based were missing from LoggerConfig in the declarative (YAML) configuration path, so file-configured loggers silently ignored severity filtering. Added both fields to the parser with spec-aligned defaults, plus integration tests covering default, explicit-severity, and trace-based filtering. Issue #4130 · PR #4131

In GoFr I added ScyllaDB migration support, extending the framework's schema-migration path beyond relational backends, with a gomock-based harness (MockScyllaDB) so migration logic is testable without a live cluster. PR #2085

MetaLens: A Web-Based Tool for Multi-Format Metadata Exploration
IEEE ICFT 2025, Smart Computing track. Co-author and presenter.

A format-agnostic metadata layer for lakehouse systems, unifying schema and snapshot state across Iceberg, Hudi, Delta, and Parquet into a single view.

IEEE Xplore  ·  DOI: 10.1109/ICFT66708.2025.11336690