Alex Jeensma
Oprichter at ElasticScale
Frisia, Netherlands
Summary
👤
Senior🎓
Top SchoolAlex Jeensma is a seasoned SaaS founder and infrastructure-focused CTO with 11 years of experience building and scaling cloud-native platforms from startup to partner-level AWS offerings. He founded ElasticScale to help CEOs and CTOs reduce AWS costs, tighten security compliance, and free developer time by standardizing reusable Terraform and offering fixed-fee DevOps-as-a-Service turned managed cloud platform. Prior roles as Interim CTO at Luggo and co-founder/CTO at Dataswitcher and Databrydge showcase his ability to deliver enterprise-grade integrations, rapid migration tooling for customers like Intuit and Exact Online, and operational platforms that support airline partners. Hands-on and detail-oriented, he has contributed backend improvements to notable open-source projects such as the QuickBooks PHP SDK, enhancing error handling and debuggability for production use. Based in Frisia, Netherlands, Alex blends pragmatic engineering with commercial insight to turn complex infrastructure problems into predictable growth levers.
11 years of coding experience
6 years of employment as a software developer
Bachelor's degree, Computer Science, Bachelor's degree, Computer Science at Rijksuniversiteit GroningenComputer Technology/Computer Systems Technology, Computer Technology/Computer Systems Technology at NHL Hogeschool
Dutch, fries, English
Github Skills (10)
debugging10
debug10
php10
error-handling10
api10
apidoc10
integrations9
sdk9
exception-handling9
integrate9
Programming languages (8)
Github contributions (5)
intuit/QuickBooks-V3-PHP-SDK
Aug 2018 - May 2020
Official PHP SDK for QuickBooks REST API v3.0: https://developer.intuit.com/
Role in this project:
Back-end Developer
Back-end DeveloperContributions:9 commits, 4 PRs, 11 comments in 1 year 9 months
Contributions summary:Alex primarily contributed to improving the QuickBooks PHP SDK's error handling and debugging capabilities. They added detailed exception messages, incorporated debug mode functionality to expose more information, and integrated intuit_tid into exceptions for better tracing. Furthermore, the user refactored parts of the code by adding new features like option data for batch items, aligned timeouts, and fixed the exception messages. These changes improved the SDK's robustness, debuggability, and overall developer experience.
apiintegrationapi-v3phpsdk
dataswitcher/QuickBooks-V3-PHP-SDK
May 2020 - Jun 2022
Contributions:8 PRs, 15 pushes, 1 branch in 2 years 2 months
apiapi-v3phpsdkrest
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