Leo Chashnikov
Senior Software Engineer at Meta
London, England, United Kingdom
Summary
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SeniorLeo Chashnikov is a Senior Software Engineer based in London with 11 years of experience building and optimizing large-scale data pipelines and real-time processing systems. Currently at Meta, he focuses on improving efficiency and operational support for costly Ads Experimentation pipelines using Python, Spark, and Scala. His background spans designing PeopleGraph components, migrating batch Spark jobs to Structured Streaming over Kafka, and scaling Akka-based services—demonstrating a blend of data engineering, backend systems, and reliability work. He repeatedly turns slow, brittle pipelines into lower-latency, easier-to-operate platforms, and is equally comfortable shipping proofs-of-concept as driving production migrations. An understated strength is his cross-language depth from Java EE through Scala and C++ image-processing integrations, enabling pragmatic solutions across the stack.
11 years of coding experience
8 years of employment as a software developer
English, Ukrainian
Stackoverflow
1,849reputation
145kreached
76answers
0questions
apache-spark
top-5%
Github Skills (55)
asynchronous10
continuation10
concurrent10
raii10
effects10
async9
apache-spark9
scala9
zio9
concurrent-programming9
functional-programming9
concurrency9
derivation9
stm8
macros8
Programming languages (4)
Github contributions (5)
RayanRal/prj-nlp-2019
Mar 2019 - May 2019
NLP-курс в Проджекторі 2019
Contributions:10 PRs, 51 pushes, 13 branches in 2 months
nlpnatural-language-processingbertkorean-nlp
RayanRal/IDevOpsInfra
Jan 2022 - Apr 2022
Contributions:12 PRs, 33 pushes, 11 branches in 2 months
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