Gerasimos Maropoulos
Chief Executive Officer at PNOĒ
Greece
Summary
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Rockstar🎓
Top School
Top expert inCloud-Native Full Stack Development
Gerasimos Maropoulos is a software leader and founder with nearly a decade of hands-on experience building high-performance backend systems in Go and leading open-source projects. As CEO of Hellenic Development he translates architectural rigor into enterprise products—most notably Plexon AI, a zero-knowledge coding assistant, and Hellenic Identity, an OAuth/OpenID Connect-ready IAM platform. He created and continues to drive the Iris Web Framework, one of the fastest and most popular Go HTTP/2 frameworks, and contributes practical examples and compatibility fixes across widely used Go tooling. Previously a senior backend engineer at PNOĒ and contributor to projects like httpexpect and GoAdmin, he blends deep technical craft with production-grade reliability. An active technical writer and community voice (Top-7 writer on Dev.to), he pairs teaching with building, aiming to raise the bar for systems that are fast, secure, and elegant. Based in Greece, he also harbors a long-term ambition to found an international IT university, reflecting a commitment to education alongside engineering.
9 years of coding experience
5 years of employment as a software developer
Computer Software Engineering, Computer Software Engineering at International Hellenic University
Greek, English
Stackoverflow
835reputation
1.2mreached
28answers
2questions
Github Skills (28)
go-modules10
iris-go10
iri10
testing10
http10
go10
golang10
intersystems-iris10
assertion9
control-panel9
rest8
json8
admin8
go-gin7
g7
Programming languages (21)
Github contributions (5)
iris-contrib/examples
Sep 2016 - Dec 2022
This repository contains small and practical examples for the Iris Web Framework.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1 release, 158 commits, 44 PRs in 6 years 3 months
Contributions summary:Gerasimos contributed to the Iris Web Framework's example repository by implementing and demonstrating various features and functionalities. Their work included adding examples of custom server integrations (using fasthttp and net listeners), implementing middleware for profiling and CORS, and demonstrating the use of sessions, alongside examples showcasing features like file uploads, and Let's Encrypt integration. The user focused on adding new features and demonstrating correct use of existing ones.
frameworkgoirispracticalapi-server
gavv/httpexpect
Sep 2016 - Jul 2019
End-to-end HTTP and REST API testing for Go.
Role in this project:Back-end Developer
Back-end DeveloperContributions:7 commits, 2 PRs, 3 comments in 2 years 10 months
Contributions summary:Gerasimos primarily contributed to the `httpexpect` library by updating and adapting examples to work with different versions of the Iris web framework. They modified existing examples to support HTTP/2, re-added stream tests, and updated the examples to be compatible with more recent versions of the Iris framework. These changes involved code modifications to integrate with the Iris framework.
golangapiassertionsend-to-endtesting
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