Alessandro Molina
Principal Software Engineer at Posit PBC
Turin, Piedmont, Italy
Summary
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RockstarAlessandro Molina is a Principal Software Engineer and open-source leader with 15+ years building high-performance, concurrent web systems and guiding teams through Agile, CI and TDD practices. He has led engineering for Apache Arrow and TurboGears while maintaining several production-grade Python projects (Beaker, Ming, Kajiki, DEPOT) and authored books on the Python standard library and TDD. At Voltron Data he coordinated multi-language Arrow development across several teams and now contributes at Posit while also investing and advising startups. He blends hands-on backend and test-automation work with strategic product and open-source stewardship, having presented over 40 conference talks and appeared on major Python podcasts. Notably, his contributions to Apache Arrow’s Python implementation and extensive test coverage have helped shape a universal in-memory analytics toolkit used in production at major companies. He pairs deep object-oriented and generic programming expertise with a practical focus on shipping reliable, scalable software.
16 years of coding experience
17 years of employment as a software developer
Italian, English
Github Skills (12)
caching10
pyarrow10
python10
session-management10
testing10
cookie9
data-structures8
data-structure8
c-language6
cprogramming-language6
substr4
datasets4
Programming languages (15)
Github contributions (5)
bbangert/beaker
Oct 2014 - Dec 2022
WSGI middleware for sessions and caching
Role in this project:
Back-end Developer & QA Engineer
Back-end Developer & QA EngineerContributions:9 releases, 4 reviews, 134 commits in 8 years 2 months
Contributions summary:Alessandro's contributions primarily focused on improving the reliability and functionality of the Beaker library. They addressed reported issues, such as those related to cookie handling and cache key lengths, by implementing fixes and adding comprehensive test cases. They also worked on ensuring the stability and correctness of the caching and session functionalities. Moreover, the user demonstrated expertise in testing, adding tests to cover various scenarios to prevent regressions.
cachingmiddlewarewsgi
apache/arrow
Apr 2021 - Dec 2022
Apache Arrow is the universal columnar format and multi-language toolbox for fast data interchange and in-memory analytics
Role in this project:Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:361 reviews, 59 commits, 224 PRs in 1 year 8 months
Contributions summary:Alessandro primarily contributed to the Python code base of the Apache Arrow project. Their commits demonstrate a focus on enhancing and refining the Python implementation of the Arrow data format. They addressed various bug fixes related to Python code and added several new features. The user also enhanced test coverage within the project.
apache-arrowarrowparquet
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