Shai Rosenfeld
Owner at Kairosen
Tel-Aviv, Tel-Aviv District, Israel
Summary
👤
Senior🎓
Top SchoolShai Rosenfeld is a seasoned software engineer and founder with 17 years of experience building scalable cloud platforms, HPC solutions, and data pipelines from Tel-Aviv. He has led infrastructure and DevOps transformations at Autodesk and Engine Yard, designed an HPC cluster for biotech at Scala Biodesign, and implemented large-scale ETLs and automated taxonomy systems using TypeScript, Databricks/Spark, MLflow and serverless AWS. A practical open-source contributor, he improved HTTP handling and test coverage in the popular excon Ruby library, reflecting attention to reliability and protocol edge cases. Comfortable across backend systems, SRE, and machine learning stacks, Shai blends hands-on implementation with architectural thinking and a knack for turning research-grade models into production workflows.
17 years of coding experience
3 years of employment as a software developer
NLP & CV Data science fellow, NLP & CV Data science fellow at Israel Tech Challenge <itc>The Open University of Israel
Github Skills (4)
ruby10
http10
excon10
testing10
Programming languages (14)
Github contributions (5)
excon/excon
Feb 2012 - Mar 2012
Usable, fast, simple HTTP 1.1 for Ruby
Role in this project:
Back-end Developer & QA Engineer
Back-end Developer & QA EngineerContributions:8 commits in 7 days
Contributions summary:Shai focused on improving the `excon` library by addressing content-length handling for HTTP GET requests with empty bodies. They modified the connection logic to correctly manage the content length header. Furthermore, they added and adjusted tests for request methods, including DELETE, and ensured the tests passed, improving the library's reliability and functionality. These changes were made based on discussions around pull requests.
usableexconruby
shaiguitar/openu-ac-il-course-grapher
Nov 2016 - Mar 2022
Contributions:2 pushes in 5 years 4 months
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