Wojciech Mitros
Software Engineer at ScyllaDB
Warsaw, Masovian Voivodeship, Poland
Summary
🤩
Rockstar🎓
Top SchoolWojciech Mitros is a software engineer with seven years' experience specializing in high-performance backend systems, currently building at ScyllaDB in Warsaw. He contributes to core open-source projects around ScyllaDB and Seastar, improving materialized view bookkeeping, query result handling, HTTP request parsing, and chunked transfer support — work that directly impacts a production-grade NoSQL database compatible with Cassandra. He has strengthened Rust driver ergonomics by improving macro generation, adding types like CqlDuration, and hardening tests to support renamed crates, showing attention to both API usability and correctness. With a CS master's from the University of Warsaw, he pairs rigorous academic training with practical systems programming skills and a demonstrated focus on performance, memory use, and maintainable logging and testing. An understated strength is his habit of turning subtle protocol and parsing edge cases into robust fixes that reduce customer-facing errors.
7 years of coding experience
2 years of employment as a software developer
Master's degree, Computer Science, Master's degree, Computer Science at University of Warsaw
Github Skills (19)
asynchronous10
c-language10
async10
testing10
macros10
http10
scylla10
seastar10
driver10
device-driver10
performance-optimization10
cql10
rust10
cprogramming-language10
nosql9
Programming languages (3)
Github contributions (5)
scylladb/scylladb
Jul 2020 - Jan 2023
NoSQL data store using the Seastar framework, compatible with Apache Cassandra and Amazon DynamoDB
Role in this project:
Back-end Developer
Back-end DeveloperContributions:679 reviews, 116 commits, 151 PRs in 2 years 6 months
Contributions summary:Wojciech focused on enhancing ScyllaDB's codebase, making improvements to materialize view bookkeeping, and modifying the maximum size of query results. They addressed identical error messages and changed their logging level to warning and made changes to memory utilization and performance. They also introduced unit tests to evaluate and ensure the quality of the recent code changes.
cppnosqlseastarcassandrasql
scylladb/seastar
Jul 2020 - Dec 2022
High performance server-side application framework
Role in this project:Back-end Developer
Back-end DeveloperContributions:3 reviews, 11 commits, 1 PR in 2 years 4 months
Contributions summary:Wojciech primarily contributed to the `httpd` module of the `seastar` framework, focusing on HTTP request handling and parsing. Their work included implementing "Expect: 100-continue" handling, adding tests for the same, and fixing header case sensitivity issues. The user also addressed request parsing issues, including fixing header handling, and improved stream handling, along with the handling of chunked transfer encoding.
seastarc-plus-plusdpdkframeworkperformance
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