Constantine Nathanson
Full Stack Developer at Cloudinary
Israel
Summary
👤
Senior🎓
Top SchoolConstantine Nathanson is a Full Stack Developer based in Israel with around a decade of professional software experience, currently building cloud media infrastructure at Cloudinary. He has deep hands-on experience across backend systems, security-focused products, and distributed scanning engines from earlier roles as Lead Architect and senior engineer at cybersecurity startups. Constantine is a pragmatic polyglot—contributing to popular Cloudinary open-source SDKs in Ruby, PHP and Node.js, adding features, tests and WebAssembly-enabled capabilities—demonstrating both product-facing and developer-tooling sensibilities. His background spans databases (MongoDB, Elasticsearch), messaging and ingestion interfaces (SMTP/IMAP/HTTP), and performance-driven optimization in C#, Python and Java ecosystems. Known for refactoring legacy cores into extensible architectures and improving test coverage and CI practices, he blends engineering leadership with frequent code-level contributions. He holds BSc and MSc degrees in Computer Science from Hadassah Academic College and brings a systems-first, security-aware mindset to full-stack product development.
9 years of coding experience
8 years of employment as a software developer
BSc, Computer Science, BSc, Computer Science at Hadassah Academic College
Hebrew, English, Russian, Ukrainian
Github Skills (21)
javascript10
apidoc10
testing10
npm-package10
rails10
manipulation10
phpunit10
ruby10
video-editing10
php10
cloudinary10
api10
image-manipulation10
transform10
nodejs10
Programming languages (15)
Github contributions (5)
cloudinary/cloudinary_php
Jan 2018 - Jan 2023
PHP extension for Cloudinary
Role in this project:
Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:18 releases, 23 reviews, 202 commits in 5 years
Contributions summary:Constantine's primary contribution involved adding and modifying back-end API functionality, specifically implementing the `resources_by_context` method in `Api.php`. They also enhanced test coverage, adding new test cases for the `ApiTest.php` and `UploaderTest.php` classes. Furthermore, the user addressed existing issues within the codebase by modifying existing unit tests and providing fixes.
cloudinarycloudinary-php-sdkimage-manipulationphpphp-extension
cloudinary/cloudinary_gem
Apr 2018 - Jan 2023
Cloudinary GEM for Ruby on Rails integration
Role in this project:Back-end Developer
Back-end DeveloperContributions:12 releases, 22 reviews, 77 commits in 4 years 9 months
Contributions summary:Constantine primarily contributed to the Cloudinary Ruby gem, focusing on bug fixes and implementing new features related to the core functionality of the gem. The user fixed raw conversion tests and resource type detection. They also added functionality like support for SassC `cloudinary-url` function and file uploads from IO and stringIO objects. The user's commits further involved version updates and addressing deprecation warnings.
cloudinaryruby-on-railsruby-gemimage-manipulationrails
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