---
title: Virtel Blog - Mainframe modernization and security | Jean-Michel SABY
description: Co-founder of SysperTec Communication, he is an accomplished mainframe and javascript developer with 20 years of experience. His expertise in web browsers has been a critical asset in the development of Virtel.
---

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## Jean-Michel SABY

![Jean-Michel SABY](https://blog.virtelweb.com/hubfs/jms.jpg)

Co-founder of SysperTec Communication, he is an accomplished mainframe and javascript developer with 20 years of experience. His expertise in web browsers has been a critical asset in the development of Virtel.

### Recent Posts

[![](https://blog.virtelweb.com/hubfs/green%20screen.png)](https://blog.virtelweb.com/is-this-the-end-of-ibm3270-green-screen)

### [Is this the end of IBM 3270 green screens?](https://blog.virtelweb.com/is-this-the-end-of-ibm3270-green-screen)

 by [Jean-Michel SABY](https://blog.virtelweb.com/author/jean-michel-saby) on January 1, 2023

Ever since the 1990s, people have been asking if the era of IBM 3270 green screens is coming to an end. To which one may...

[Read More](https://blog.virtelweb.com/is-this-the-end-of-ibm3270-green-screen)

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