Nicki Křížek
Czechia, United States
Summary
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RockstarNicki Křížek is a software engineer with 11 years of experience, based in Czechia and contributing internationally as a Free Software developer. They specialize in backend and DevOps work, particularly around DNS infrastructure—contributing to well-known projects like BIND9 and dnspython where they improved test frameworks, automation, and DNSSEC/cryptography support. Nicki combines practical scripting and Python expertise with system-level refinements, from shell helpers to Cython compatibility and hashlib-driven cryptography. Notably, they focus on quality and automation—adding tests, fixing linters, and integrating tooling like black—so their contributions often reduce maintenance friction for large open-source codebases.
11 years of coding experience
Github Skills (14)
sh10
dnssec10
script10
shell10
system-testing10
dns10
dnspython10
python10
scripting10
devops9
testing8
dns-resolver7
nameserver7
cython6
Programming languages (15)
Github contributions (5)
rthalley/dnspython
Jul 2018 - Dec 2021
a powerful DNS toolkit for python
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1 review, 24 commits, 12 PRs in 3 years 5 months
Contributions summary:Nicki primarily focused on improving the `dnspython` library's code quality and functionality. Their contributions include fixing pylint issues across various modules, such as examples, tests, and core DNS code. They added support for missing DNSSEC algorithms, refactored to use `hashlib` for cryptographic operations, and implemented Extended DNS Error Option (EDE) support. They also made changes to support compilation with Cython and removed obsolete modules and functions.
dnspythondnspythondns-over-httpsdns-over-tls
isc-projects/bind9
Jun 2022 - Jan 2023
Archived mirror of https://gitlab.isc.org/isc-projects/bind9, please submit issues and PR/MRs in the GitLab.
Role in this project:Backend & DevOps Engineer
Backend & DevOps EngineerContributions:248 commits in 7 months
Contributions summary:Nicki's contributions primarily focused on automating Python code formatting using the `black` tool and integrating the resulting changes. They also made various updates to system tests, including fixes for existing tests and adding new ones to the default test suite. The user appears to be involved in refining the system test framework, including improvements to feature detection and simplifying the start/stop helper functions. This work involved changes to shell scripts and Python code.
gitlabdns-serverdnsisc
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