Valeriy Meleshkin
Software Engineer at Langfuse
Berlin, Germany
Summary
🤩
Rockstar🎓
Top SchoolValeriy Meleshkin is a software engineer with 15 years’ experience building high-throughput distributed systems, databases, and backend services, now based in Berlin. He has driven core database and ingestion work at Timescale (notably on Promscale and PostgreSQL extensions) and led scalable data pipelines and query layers at companies like Contiamo, adjust.com and Snowflake. Comfortable across Erlang, Scala, Rust and PL/pgSQL, he focuses on functional and concurrent programming, query optimization and storage-layer internals. His background includes real-time quote aggregation, large-scale game backends and design of time-series storage on Riak, showing a sustained focus on reliability under heavy load. An active systems thinker, he pairs hands-on implementation with performance tuning—evident from contributions that added metric support, query optimizations and custom polling to observability backends. Outside work he explores game development, photography and experimental music, reflecting a creative bent that informs pragmatic engineering decisions.
15 years of coding experience
15 years of employment as a software developer
Lomonosov Moscow State University
Русский, Английский
Github Skills (7)
timescaledb10
postgresql10
sql10
database-design10
metric10
go9
prometheus9
Programming languages (16)
Github contributions (5)
timescale/promscale
Apr 2022 - Jan 2023
[DEPRECATED] Promscale is a unified metric and trace observability backend for Prometheus, Jaeger and OpenTelemetry built on PostgreSQL and TimescaleDB.
Role in this project:
Backend Developer & Database Engineer
Backend Developer & Database EngineerContributions:72 reviews, 38 commits, 19 PRs in 9 months
Contributions summary:Valeriy primarily contributed to the backend aspects of the project, focusing on database interactions and metrics. They implemented support for new metrics, including those related to compression and retention. They also refactored code, optimized database queries, and introduced custom polling intervals for specific metrics, improving overall system performance and monitoring capabilities within the context of the project's database backend.
promqlobservabilitypromscalegrafanaprometheus
sumerman/clamorous
May 2012 - Jan 2013
Contributions:56 commits in 7 months
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