Valerii Mironov
About Valerii Mironov
Valerii Mironov is a Software Engineer with a strong background in big data infrastructure and optimization techniques. He currently works at ArangoDB in Germany and has previously held positions at Wärtsilä Voyage and Mail.ru Group in Russia.
Work at ArangoDB
Valerii Mironov has been employed at ArangoDB as a Software Engineer since 2021. He works in Cologne, North Rhine-Westphalia, Germany. His contributions include translating wildcard queries to ngram queries, achieving significant speed improvements. He has also implemented various optimizations, such as memoization of nested loops for inverted index optimization and enabling zero-copy value movement from rocksdb to an internal query language.
Education and Expertise
Valerii Mironov studied at the Yandex School of Data Analysis from 2019 to 2022, focusing on Big Data infrastructure. He also holds a Bachelor's degree in Mathematics and Computer Science from Saint Petersburg State University, where he studied from 2018 to 2021. Additionally, he completed a Software Engineering program at the Computer Science Center from 2019 to 2022.
Background
Before joining ArangoDB, Valerii Mironov worked at Wärtsilä Voyage as a Software Engineer from 2020 to 2021 and as a Junior Software Engineer from 2019 to 2020 in Saint Petersburg, Russia. He also worked remotely for Mail.ru Group as a Software Engineer for seven months in 2021. His experience spans various aspects of software engineering, including memory optimization and query performance enhancements.
Achievements
Valerii Mironov has achieved notable results in his engineering roles. He accomplished a tenfold reduction in memory usage for inverted index operations and enhanced request handling by implementing a tournament tree structure. His research led to the development of a new GeoJson/s2 geometry binary serialization format, which tripled query speed and reduced memory usage significantly.