Sérgio Samora
Senior Software Engineer at Pentaho
Mafra, Lisbon, Portugal
Summary
🤩
Rockstar🎓
Top SchoolSérgio Samora is a Senior Software Engineer based in Mafra, Lisbon with eight years of professional experience and a long history in telecom and enterprise software dating back to 2007. He specializes in backend Java development, contributing substantive bug fixes and robustness improvements to the Pentaho ecosystem—addressing timezone/date handling, S3 integration, ETL metadata, and repository stability. His career includes roles at Hitachi Vantara and Pentaho, and earlier systems and CI work at Coriant and Nokia Siemens Networks, giving him deep experience in networking, data integration, and automation testing. Sérgio’s contributions show a pragmatic focus on reliability and maintainability, often fixing subtle edge cases like NullPointerExceptions and incorrect URL generation that can cripple production systems. Trained in computer engineering with advanced Java coursework and a master’s, he blends solid academic grounding with hands-on platform-level problem solving. Colleagues can expect a detail-oriented engineer who improves developer and user-facing tooling by iterating thoughtfully on tricky backend issues.
7 years of coding experience
11 years of employment as a software developer
Bachelor Computer Engineering, Bachelor Computer Engineering at Instituto Superior de Engenharia de LisboaJava Best Practices and Design Patterns, Java Best Practices and Design Patterns at Learning Tree International
English, Portuguese, Spanish
Github Skills (25)
datetime10
debug10
jparepository10
testing10
datetimes10
java10
etl10
javas10
jcr10
aws-s310
xml10
content-repository10
data-integration10
filesystem9
virtual-file-system9
Programming languages (4)
Github contributions (5)
pentaho/pentaho-kettle
Jun 2018 - Oct 2021
Pentaho Data Integration ( ETL ) a.k.a Kettle
Role in this project:
Backend Developer & Data Engineer
Backend Developer & Data EngineerContributions:153 reviews, 400 commits, 474 PRs in 3 years 4 months
Contributions summary:Sérgio primarily contributed to bug fixes and enhancements within the Pentaho Data Integration (PDI) ETL tool, specifically addressing null pointer exceptions and inconsistencies in the XML output step. They also made changes related to database interactions, including corrections to the database lookup step and the handling of connections within the repository manager. Furthermore, the user addressed issues related to metadata injection, ensuring the correct handling of table output steps and file name functionalities.
pentaho-data-integrationetldata-integrationkettlepentaho
pentaho/big-data-plugin
Jun 2018 - Oct 2021
Kettle plugin that provides support for interacting within many "big data" projects including Hadoop, Hive, HBase, Cassandra, MongoDB, and others.
Role in this project:Back-end Developer
Back-end DeveloperContributions:19 reviews, 76 commits, 56 PRs in 3 years 4 months
Contributions summary:Sérgio primarily contributed to the `pentaho/big-data-plugin` repository by modifying code related to S3 file output functionality. These changes involved updates to the S3FileOutputDialog class, including adding or modifying fields related to AWS access keys, secret keys, and file browsing. The user also addressed issues related to variable substitution for AWS credentials and browsing S3 buckets. The impact of these changes was to fix browsing issues, improve usability, and update the plugin.
operationhadoop-hivefeature-storehive-hbasemongodb
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.