Jaume Marhuenda
Software Engineer at Google
New York, New York, United States
Summary
🤩
Rockstar🎓
Top SchoolJaume Marhuenda is a seasoned Software Engineer with 10 years’ experience building and hardening distributed data systems, currently at Google in New York. He brings deep back-end expertise in Cassandra, Hive, Java, and Python, with a track record of fixing complex bugs and improving core protocol and streaming behavior in high-profile open-source projects like Apache Tez, Hive, and the Cassandra drivers. His work spans database driver internals (protocol v5, CDC, frame handling), metastore and query-parsing fixes, and shuffle/IO reliability improvements—skills honed during roles at DataStax, Hortonworks and in academic research on high-performance networks. Notably, he has contributed subtle but impactful enhancements such as vertex-priority visualization in Tez DAGs and protocol-level error handling in GoCQL, reflecting an engineer who finds and resolves correctness regressions that matter in production. With dual training in mathematics and computer engineering, he combines rigorous analytical thinking with practical systems-level coding to improve stability and observability in large-scale data platforms.
10 years of coding experience
4 years of employment as a software developer
Master of Science (BSc), Mathematics, Master of Science (BSc), Mathematics at Universidad Autónoma de Madrid
Spanish, English, Catalan
Github Skills (24)
python10
cassandra10
testing10
big-data10
hadoop10
apache10
java10
javas10
database-driver10
tez10
apache-hive10
golang10
cassandra-database10
test-automation10
nosql9
Programming languages (7)
Github contributions (5)
datastax/python-driver
Aug 2017 - May 2018
DataStax Python Driver for Apache Cassandra
Role in this project:
Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:134 commits, 244 PRs, 782 pushes in 9 months
Contributions summary:Jaume primarily contributed to the DataStax Python Driver for Apache Cassandra by addressing bugs and adding new tests. Their work included removing unnecessary connection setups, refactoring existing test code, and adding tests for new features. Additionally, the user updated the CHANGELOG and addressed a bug in the AsyncoreConnection.
python-driverpythoncassandraapachedatastax
apache/cassandra-gocql-driver
Aug 2018 - Jan 2021
GoCQL Driver for Apache Cassandra®
Role in this project:Back-end Developer
Back-end DeveloperContributions:21 commits, 23 PRs, 65 comments in 2 years 5 months
Contributions summary:Jaume primarily contributed to the GoCQL driver for Apache Cassandra, focusing on improvements to the core functionality and protocol support. They added features for CDC (Change Data Capture) errors and protocol version 5, including duration data type and error maps. Further, they addressed several bugs related to metadata parsing and write coalescing. Their contributions also involved improvements to frame handling and query parameter handling within the driver.
golangdrivernosqlcassandradatabase
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