Shai Berger is a Cloud & Clients Engineer based in Israel with 17 years of experience building backend systems, cloud integrations, and developer-facing tooling. He combines deep Python and database expertise—demonstrated by core Django contributions and performance-focused work on the cx_Oracle library—with practical experience delivering APIs and query optimizations for civic and health projects. Shai has a track record of improving robustness across language boundaries (e.g., addressing floating-point and interval handling between Python, JavaScript and Oracle), showing attention to subtle cross-platform correctness. He’s active in standards and community: a member of a national standards committee, long-time Python conference organizer, and open-source consultant. Comfortable moving between C, Python, C++ and cloud stacks, he brings both systems-level rigor and product-minded pragmatism to engineering teams. His academic background in logic and computer science underpins a methodical approach to complex engineering problems.
17 years of coding experience
10 years of employment as a software developer
BSc, Computer Science, BSc, Computer Science at The Hebrew University of Jerusalem
The Web framework for perfectionists with deadlines.
Role in this project:
Back-end Developer
Contributions:59 reviews, 2 commits, 29 PRs in 8 days
Contributions summary:Shai primarily contributed to the Django framework's Oracle database backend. Their work involved fixing bugs related to Oracle-specific database behavior, including issues with date lookups, character encoding, and timezone handling. They implemented features such as `get_key_columns()` and support for 'pyformat' style parameters, and addressed test failures associated with Oracle. The user's commits reflect a deep understanding of Django's internals and Oracle's database interactions.
A JavaScript implementation of the Python virtual machine.
Role in this project:
QA Engineer / Test Automation Engineer
Contributions:5 commits, 6 PRs, 20 comments in 1 year 6 months
Contributions summary:Shai primarily contributed to the testing and quality assurance of the Batavia project. They recommended and implemented the use of Cricket for running the test suite, a tool designed to simplify test management. Additionally, they made code changes to adjust floating-point comparisons within the tests to account for potential rounding differences between Python and JavaScript implementations. This focused on improving the robustness and accuracy of the test results, and providing accurate test coverage.
javascriptpythonvirtual-machine
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.