Bart Maertens
Managing Partner at Be Eyes Open
Brussels Metropolitan Area Belgium
Summary
🤩
Rockstar🎓
Top SchoolBart Maertens is a seasoned business intelligence and analytics leader with over 20 years of experience, currently managing know.bi while remaining hands-on as an architect, coach and developer. He co-founded Apache Hop (Incubating) and contributed early backend features and plugin work to the Hop orchestration platform, reflecting deep open-source expertise in ETL and data orchestration. His consultancy practice focuses on open architectures and pragmatic data platforms that blend cloud infrastructure with tools like Apache Hop, Neo4j and Vertica to let customers focus on business outcomes. Bart’s background spans enterprise BI migrations and implementations—from Pentaho and Business Objects to large-scale ETL at McKinsey—and he still codes and refactors production plugins. Based in Brussels, he combines technical depth with ongoing investment in usability, information design and people skills to scale teams and client value. An entrepreneur at heart, he founded know.bi and previously co-founded Lean With Data, demonstrating a consistent drive to turn complex analytics landscapes into practical solutions.
13 years of coding experience
3 years of employment as a software developer
Usability Design, Analyst Programmer, Information Design, Labour Organization, Postgraduate Studies in Big Data and Analytics, Big Data, Data Science, Usability Design, Analyst Programmer, Information Design, Labour Organization, Postgraduate Studies in Big Data and Analytics, Big Data, Data Science at KU Leuven
Information Design (Edward Tufte)
KU Leuven
French, English, Dutch
Stackoverflow
21reputation
318reached
2answers
0questions
Github Skills (12)
etl10
javas10
develop10
data-integration10
java10
pentaho6
http-get6
api6
pdi6
apachehop6
kettle6
xml5
Programming languages (5)
Github contributions (5)
apache/hop
Nov 2019 - Jan 2023
Hop Orchestration Platform
Role in this project:
Backend Developer
Backend DeveloperContributions:27 reviews, 291 commits, 352 PRs in 3 years 3 months
Contributions summary:Bart contributed to the initial versions of isolated step plugins within the Hop Orchestration Platform. The user added new features related to a text file input, dimension lookup, and excel input plugins to the Apache Hop platform. Furthermore the user performed merge operations, and general refactoring.
orchestrationhopstreamingapachekubernetes
project-hop/hop-plugins
Oct 2020 - Jan 2023
a collection of plugins that can be used with but can't or won't be shipped with Apache Hop
Contributions:11 commits, 12 PRs, 14 pushes in 2 years 3 months
javahopapache
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