Germán Lena
Principal Engineer at Pulumi
Buenos Aires, Autonomous City of Buenos Aires, Argentina
Summary
🤩
Rockstar🎓
Top SchoolGermán Lena is a Principal Engineer with 12 years of experience designing and leading scalable authentication and infrastructure projects from Buenos Aires. He has driven large refactors and migrations at Auth0/Okta—rebuilding core authorization services, migrating from MongoDB to PostgreSQL, and launching the Universal Login platform—while coaching teams and shaping multiyear roadmaps. Now at Pulumi, he focuses on SDK and deployment plumbing, contributing to plugin management and YAML marshalling to reduce architectural friction. A hands-on engineer who still ships code, his open-source contributions span Auth0 SDKs (PHP, Laravel, JS) and Pulumi, notably adding RS256/passwordless support and improving JWT middleware—evidence of deep expertise in auth, OAuth flows, and developer-facing tooling. Colleagues describe him as a pragmatic technical leader who pairs system-level thinking with attention to API and UX details that accelerate onboarding and reliability.
12 years of coding experience
17 years of employment as a software developer
Engineer's degree, Systems Engineering, Engineer's degree, Systems Engineering at Universidad Tecnológica Nacional
Spanish, English, German
Stackoverflow
877reputation
51kreached
5answers
13questions
Github Skills (35)
apim10
authorizations10
javascript10
apidoc10
laravel-mix10
authentication10
user-authentication10
browser10
laravel10
php10
go10
api10
sdk10
front-end-development10
authorization10
Programming languages (9)
Github contributions (5)
auth0/auth0.js
Aug 2015 - Feb 2017
Auth0 headless browser sdk
Role in this project:
Front-end Developer
Front-end DeveloperContributions:216 commits, 96 PRs, 260 pushes in 1 year 5 months
Contributions summary:Germán implemented passwordless authentication features within the Auth0.js headless browser SDK. Their contributions included developing and testing components for passwordless start and verify flows, integrating with various connection types, and handling the necessary redirect logic. The code changes focused on enhancing the authentication and authorization capabilities of the SDK, primarily for front-end use cases. They also refactored existing code, improved test coverage, and improved the UI and functionality.
headless-browserauthorizationbrowserjavascriptauthentication
auth0/auth0-PHP
Apr 2015 - Nov 2017
PHP SDK for Auth0 Authentication and Management APIs.
Role in this project:Back-end Developer
Back-end DeveloperContributions:39 releases, 238 commits, 107 PRs in 2 years 7 months
Contributions summary:Germán primarily focused on implementing and refactoring core backend functionality for the Auth0 PHP SDK. Their contributions include the development of a new API V2 client, code reorganizations, and the creation of a basic OAuth example. The user also worked on integrating user metadata updates, including app and user metadata management and updating the SDK code. The user demonstrates API integration, specifically related to OAuth flows and user account management within the Auth0 platform.
phpauthenticationdx-sdksdkoauth2
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