Alex Kalyvitis
Director Of Software Engineering at Blueground
Amsterdam, North Holland, Netherlands
Summary
🤩
Rockstar🎓
Top SchoolAlex Kalyvitis is a seasoned engineering leader with 13 years of experience building and scaling software teams across Amsterdam, currently serving as Director of Software Engineering at Blueground. He has held senior leadership and CTO roles at growth-stage companies like FREENOW, Yieldr and kambr, blending hands-on backend development with strategic technical direction. Alex contributes to open-source projects—most notably maintaining work on an Auth0 Terraform provider and earlier contributions to the Silex PHP micro-framework—showing strong expertise in API-driven infrastructure and validator/DI patterns. He holds an MSc in Software Engineering from the University of Amsterdam and is known for translating complex integration requirements into reliable, maintainable systems while mentoring engineering teams through rapid product growth.
13 years of coding experience
11 years of employment as a software developer
MSc Software Engineering, MSc Software Engineering at University of AmsterdamBSc IT & Telecomunications, BSc IT & Telecomunications at Technological Educational Institute of Thessaly. / TEI of Thessaly
English, Greek
Stackoverflow
285reputation
33kreached
1answer
3questions
Github Skills (14)
terraformer10
php10
go10
back-end-development10
dependency-injection10
terraform10
auth10
phpunit9
vbnet6
sql-server6
exceptions6
try-catch6
redis6
smo6
Programming languages (12)
Github contributions (5)
alexkappa/terraform-provider-auth0
May 2018 - Feb 2022
ARCHIVED Auth0 Terraform Provider. This project is now being maintained at: https://github.com/auth0/terraform-provider-auth0
Role in this project:
Back-end Developer
Back-end DeveloperContributions:22 releases, 43 reviews, 495 commits in 3 years 10 months
Contributions summary:Alex appears to be contributing to a Terraform provider for Auth0. Their commits involve merging code, introducing new resources (client_grant, organization) and modifying existing resources (tenant), reading remote values, and fixing tests. The user is implementing various features related to managing Auth0 resources through Terraform, including access to configure various connection options.
providerterraformterraform-providerauth0terraform-module
silexphp/Silex
Feb 2013 - Apr 2013
[DEPRECATED -- Use Symfony instead] The PHP micro-framework based on the Symfony Components
Role in this project:Back-end Developer
Back-end DeveloperContributions:13 commits, 3 comments in 2 months
Contributions summary:Alex primarily contributed to the Silex micro-framework, focusing on enhancements to its validator service. They ported code related to constraint validation and implemented features allowing for custom validator registration. Furthermore, they updated the code to use a more modern dependency injection pattern with a Pimple container. The user also added a custom constraint and validator for testing purposes, demonstrating a strong understanding of the framework's architecture.
micro-frameworkphp-micro-frameworkphpsymfony-bundlesymfony
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