Alexander Sieg
Advisory Board Member at Siemax Immobilien GmbH
Greater Munich Metropolitan Area Germany
Summary
🤩
RockstarAlexander Sieg is an advisory board member and entrepreneur based in the Greater Munich area with 11 years of technical and business experience blending back-end systems engineering and asset-focused ventures. He contributes to notable Rust open-source projects—improving cross-platform filesystem notifications in notify-rs and hardening crypto/verification flows in the Matrix Rust SDK—demonstrating deep systems-level expertise and attention to cross-platform parity. As a leader at UCY Industrial and managing partner in real-estate firms, he applies data-driven approaches to asset liquidation and property management, translating technical problem solving into commercial outcomes. Comfortable shipping low-level fixes and feature gates, he brings a hands-on mindset to advisory roles and company operations. A less obvious strength is his ability to operate simultaneously in founding and contributor roles, bridging product, engineering and business strategy.
11 years of coding experience
Github Skills (14)
matrix-org10
filesystem10
bsd10
rust10
sdk10
event-handling10
kqueue10
conditional-compilation10
qr-code10
watchers10
cryptography9
cross-platform9
githubaction-workflow7
github-ci7
Programming languages (22)
Github contributions (5)
notify-rs/notify
Jun 2021 - Dec 2021
🔭 Cross-platform filesystem notification library for Rust.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:10 reviews, 6 commits, 5 PRs in 5 months
Contributions summary:Alexander focused on implementing a kqueue backend for the `notify-rs/notify` repository, a cross-platform filesystem notification library. Their work included core integration, event mapping, and handling of specific kqueue events like deletes, writes, and renames. They addressed several bugs, optimized code, and added features, such as watching individual files instead of just directories and emitting "create" events. These changes aimed to improve the functionality and compatibility of the kqueue backend, aligning it with the behavior of other backends like inotify.
filesystemrustfilesystem-eventswatchercross-platform
matrix-org/matrix-rust-sdk
Sep 2021 - Sep 2021
Matrix Client-Server SDK for Rust
Role in this project:Back-end Developer
Back-end DeveloperContributions:8 commits, 1 PR in 2 days
Contributions summary:Alexander primarily focused on enhancing the Matrix Rust SDK's crypto and verification functionalities. Their contributions included feature-gating dependencies, specifically adding conditional compilation for the `qrcode` feature. These changes involved modifying code across multiple modules to integrate and manage the QR code-based verification process, demonstrating a focus on enhancing the SDK's security features. The user also made adjustments to ensure correct compilation with the qrcode feature enabled.
client-serverrustmatrix-orgsdk
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