About

Schlomo Schapiro

Schlomo Schapiro

Dear Visitor,

on these pages you can find some of my work past and present which I found worthy to be published.

I am always happy to know if somebody finds my work useful or can profit from my previous efforts. I am equally thankful about any comment on the materials you find here. You can contact me via email to webmaster @ schapiro.org. 

I am always looking for interesting projects and offers. Take a look at my my Blog and GitHub profile and also at my Twitter and LinkedIn. My publications and talks also reflect a lot of my work, there are also some videos available.

A formal CV is available upon request. For commercial support for my Open Source projects please go to Schlomo Schapiro Open-Source Consulting.

Like my work? Send me a present from my Amazon wishlist!

Professional Background

Since 2024 Associate Partner / Principal Engineer Tektit Consulting, Berlin
2021 - 2024 Principal Engineer Forto, Berlin
2017 – 2021 Chief Architect Cloud DB Systel, Berlin & Frankfurt
2016 – 2017 Senior Architect, Product Owner Workplace / Head of Product Zalando, Berlin
2009 – 2016 Product Owner, Systems Architect & Open Source Evangelist ImmobilienScout24, Berlin
1999 – 2004 Principal Consultant
Test Lab Manage
System Administrator
Technician		 pro business Berlin, Berlin
mikado, Berlin
AZ Systems, Böblingen
MobilEye Vision Technologies, Jerusalem
Computation Authority, Hebrew University, Jerusalem
self employed and salaried

In 2012 ImmobilienScout24 (my former employer) made a nice short film about what I am doing at work (in German):

Like this content? You could send me something from my Amazon Wishlist. Need commercial support? Contact me for Consulting Services.

Popular posts from this blog

Overriding / Patching Linux System Serial Number

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I'm a big fan of test driven development  (TDD) for infrastructure components. I'm currently working on a hardware-related topic where we also use the system serial number as identifier. To create a proper integration test, we need to be able to start a system and set the serial number to a known value. This can easily be done with the help of virtual machines like in VMware or VirtualBox , but I couldn't find a way for changing the system serial number on hardware boxes, cloud VMs (e.g. on Alibaba Cloud) or other Linux system. Problem Analysis I was thinking: Linux is the operating system where I can potentially do everything . So how hard can this be? After some digging around I found out that there are those main sources for the serial number on Linux: /sys/firmware/dmi/tables/DMI contains a binary blob of Desktop Management Interface data provided by the kernel and the dmidecode utility is commonly used to decode...
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A Login Security Architecture Without Passwords

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Following up on Lifting the Curse of Static Credentials and Eliminating the Password of Shared Accounts , I have many discussions about why we would benefit from removing password prompts for website logins. Let's dig deeper into the details and show why removing password prompts leads to a  safer security architecture . Update 11.03.2022: Added more details about business vs. consumer websites and additional security suggestions surrounding WebAuthn Problem Space For context, imagine a website that needs to identify online users via their email address. We assume that the website in question is not the primary email system of a user but some other website, e.g. an e-commerce shop system or a collaborative productivity tool. As a User As a user of that website I want to easily sign up for an account have an easy way to login into the account be sure that my account is protected from others or attacks be able to easily recover access to my acco...
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Fixing Chrome Color Printing on Linux with HP Color LaserJet M880

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