Ing Poddebniak
Network Architect at Nordex Group
Hamburg, Germany
Summary
👤
Senior🎓
Top SchoolIng Poddebniak is a Network Architect and security-focused software engineer with 11 years of experience building and hardening networked systems, applied cryptography, and protocol implementations. Based in Hamburg, he combines academic research—culminating in a Dr.-Ing. in information security—with hands-on engineering roles from cryptographic work at Cryspen to operational CA testing at Let's Encrypt. A Rustacean and active open-source contributor, he improves usability and correctness in encryption tooling (e.g., age/rage) and strengthens CA robustness through targeted tests and logging improvements. He is driven by pragmatic security improvements, open knowledge, and sustainability goals, and brings the rare mix of protocol-level analysis, QA rigor, and developer ergonomics to architect resilient systems.
11 years of coding experience
7 years of employment as a software developer
Dr.-Ing. Informationssicherheit, Dr.-Ing. Informationssicherheit at Ruhr University BochumMaster of Science - MS Informatik, Master of Science - MS Informatik at FH Münster
Stackoverflow
161reputation
14kreached
2answers
8questions
Github Skills (26)
rust-lang10
cert10
testing10
acme10
go10
certificate-authority10
ca10
rust10
encryption10
documentation10
tls129
tls139
rpc9
mtls9
libtls9
Programming languages (20)
Github contributions (5)
letsencrypt/boulder
Nov 2015 - Feb 2016
An ACME-based certificate authority, written in Go.
Role in this project:
Back-end Developer & QA Engineer
Back-end Developer & QA EngineerContributions:14 commits, 4 PRs, 7 comments in 2 months
Contributions summary:Ing contributed to the `boulder` repository by adding tests to ensure the Certificate Authority (CA) rejects Certificate Signing Requests (CSRs) with invalid signatures. They modified the test suite to include a test case that validates this behavior, and also merged master branch into a test branch, demonstrating integration and code update skills. Furthermore, they made changes to the RPC AMQP server, improving its error handling capabilities, and enhanced logging practices, highlighting their focus on system reliability.
golangcertificate-authorityletsencryptpkilets-encrypt
str4d/rage
Dec 2019 - Jan 2020
A simple, secure and modern file encryption tool (and Rust library) with small explicit keys, no config options, and UNIX-style composability.
Role in this project:Back-end Developer
Back-end DeveloperContributions:9 commits, 1 PR, 2 comments in 1 day
Contributions summary:Ing primarily contributed to improving the examples and documentation within the age encryption library. They fixed clippy warnings related to doctests. The user refactored the code to use an enum instead of a boolean flag for the armored format and updated various examples within the library to be clearer and more informative. Their work is focused on refining the usability and clarity of the provided examples and the underlying structure of the encryption tool.
unixrust-librarycomposabilityyubikeyunix-philosophy
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