Guy聽Cohen
Head Of Big Data Acting As Data Architect
Raanana, Center District, Israel
Summary
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Rockstar馃帗
Top SchoolGuy Cohen is a seasoned data architect and Head of Big Data with over a decade of hands-on experience designing and operating large-scale analytics platforms. Based in Raanana, Israel, he leads Gett鈥檚 Big Data efforts, building a next-generation Data Lake and DWH using Lambda architecture with Trino, Spark, Kinesis, S3 and Python to unify heterogeneous sources like MySQL, Mongo and S3. A long-time Oracle DBA and performance-tuning specialist, he brings deep expertise in VLDB, RAC and SQL optimization married to modern streaming and ETL practices. He is an active contributor to the well-known Trino project, improving its PostgreSQL connector and type handling鈥攁n indicator of both system-level depth and open-source engagement. His background spans telecom and media enterprises and even military programming training at Mamram, giving him a pragmatic, reliability-first approach to data platform engineering.
10 years of coding experience
20 years of employment as a software developer
practical engineer, programmer and software developer, practical engineer, programmer and software developer at MAMRAMBA, Computer Science, BA, Computer Science at The Open University of Israel
English
Stackoverflow
266reputation
12kreached
3answers
1question
Github Skills (16)
query-engine10
javas10
trino10
postgresql10
sql10
java10
database9
jdbc9
databases9
hive-metastore6
apache-spark6
pyspark6
indexing6
amazon-emr6
presto6
Programming languages (4)
Github contributions (5)
trinodb/trino
Jan 2019 - Mar 2025
Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)
Role in this project:
Back-end Developer
Back-end DeveloperContributions:54 reviews, 40 PRs, 314 comments in 6 years 3 months
Contributions summary:Guy primarily contributed to the Trino query engine's PostgreSQL connector, implementing features and addressing issues related to data type mapping. Their work included mapping PostgreSQL JSON types to Trino JSON, fixing pushdown filters for PostgreSQL enum types, and adding support for array types of timestamps. They also addressed a bug with distinct/groupby on UUID, and added features related to handling decimals. Furthermore, the user made changes to system metadata.
prestodbdbmsindexingjdbcbigdata
guyco33/trino-ext
Jan 2019 - Apr 2024
Contributions:20 pushes, 3 branches in 5 years 3 months
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