Piotr Grabowski
Founding Engineer at Quesma
Warsaw, Masovian Voivodeship, Poland
Summary
🤩
Rockstar🎓
Top SchoolPiotr Grabowski is a founding engineer and backend-focused software leader with 7 years of experience building distributed systems and developer tooling from Warsaw. He spent multiple years at ScyllaDB advancing drivers, connectors and core database behavior—contributing to the high-profile ScyllaDB project by improving logging, caching propagation and token ordering for correct secondary-index queries. As a former team lead he managed a multi-language drivers team, produced benchmarks and public-facing technical content, and now ships infrastructure components at Quesma such as a Slack Operator and gateway. Comfortable across modern C++, Java, Rust and cloud CI/CD stacks, he blends low-level database engineering with product-minded delivery. A subtle strength is his track record of turning nuanced protocol and configuration issues into user-visible correctness and observability improvements.
7 years of coding experience
4 years of employment as a software developer
Master's degree, Computer Science, Master's degree, Computer Science at University of Warsaw
Github Skills (13)
databases10
c-language10
scylla10
cpp10
cprogramming-language10
seastar10
relational-databases10
nosql10
sql-database10
database10
cassandra9
logging9
performance-optimization8
Programming languages (9)
Github contributions (5)
scylladb/scylladb
Sep 2020 - Jan 2023
NoSQL data store using the seastar framework, compatible with Apache Cassandra
Role in this project:
Back-end Developer / Database Engineer
Back-end Developer / Database EngineerContributions:65 reviews, 43 commits, 25 PRs in 2 years 4 months
Contributions summary:Piotr primarily focused on improving the ScyllaDB database's internal logging and data handling mechanisms. They modified the logging output for mutations, making them more human-readable. The user also addressed issues related to the propagation of configuration options, specifically enabling caching for system keyspaces. Furthermore, they implemented changes to the token ordering logic within the database, improving the correctness of results when querying tables with secondary indexes.
cppnosqlseastarcassandrasql
scylladb/kafka-connect-scylladb
Feb 2021 - Nov 2022
Kafka Connect Scylladb Sink
Contributions:4 releases, 18 reviews, 9 commits in 1 year 9 months
avrosinkkafka-connectorscylladbkafka-connect
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