Daniel Schalla
VP, Security And Infrastructure at European Cyber Security Organisation (ECSO)
Cologne Bonn Region Germany
Summary
🤩
Rockstar🎓
Top SchoolDaniel Schalla is a global security and infrastructure leader with 12 years of hands-on experience building resilient, compliant platforms for defense, government, and critical infrastructure customers. As VP of Security and Infrastructure at Mattermost he unifies security, cloud, and production operations to deliver sovereign, highly available collaboration services and has driven ISO 27001 and SOC 2 programs while launching a sovereignty-focused product offering. He combines security research and incident response experience with full-stack contributions to Mattermost’s open-source codebase—work that spans frontend UX tweaks, backend ephemeral messaging, WebSocket reliability improvements, and security hardening. Active in industry forums like ECSO and the SANS CISO Network, he blends operational rigor with external collaboration to advance operational resilience across the public sector.
12 years of coding experience
4 years of employment as a software developer
Bachelor's degree, Applied Computer Science, Bachelor's degree, Applied Computer Science at Baden-Wuerttemberg Cooperative State University (DHBW)Master of Science - MS, Information Security Engineering, Master of Science - MS, Information Security Engineering at SANS Technology Institute
German, English
Github Skills (40)
markdown10
javascript10
web-application10
apidoc10
testing10
microservices-application10
websocket10
mattermost10
go10
markdown-it10
api10
front-end-development10
webapp10
golang10
web-development10
Programming languages (10)
Github contributions (5)
mattermost/mattermost
Apr 2018 - Dec 2022
Mattermost is an open source platform for secure collaboration across the entire software development lifecycle..
Role in this project:
Back-end Developer
Back-end DeveloperContributions:21 reviews, 120 commits, 125 PRs in 4 years 8 months
Contributions summary:Daniel's contributions primarily revolve around implementing and extending features related to ephemeral messages for system administrators, which involved modifying the API and associated tests. They also worked on enhancing the WebSocket client by adding ping timeout signals, addressing a critical aspect of client-server communication. Furthermore, the user has made changes to the application's core functionalities, adding validation and integrating new endpoints and hooks, while also contributing to file management and security.
golangsecuredevelopment-lifecyclelifecyclereact-native
mattermost/docs
Apr 2018 - Jun 2022
Mattermost documentation
Role in this project:Technical Writer
Technical WriterContributions:17 reviews, 11 commits, 10 PRs in 4 years 3 months
Contributions summary:Daniel primarily contributed to the Mattermost documentation repository. Their work involved fixing dead links, updating upgrade notes, and clarifying wording within the security documentation. They also created a new recipe detailing product vulnerability incidents and made several formatting and editorial improvements to existing documentation pages, reflecting a focus on clarity and accuracy within the documentation.
mattermost-documentationmattermost
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