Klaus Purer
Principal Engineer at Drupal Project
Vienna, Austria
Summary
👤
Senior🎓
Top SchoolKlaus Purer is a Principal Engineer based in Vienna with 16 years of experience leading software teams, shaping architecture, and driving DevOps and cybersecurity practices at Jobiqo. He combines hands-on backend development with a security-first mindset, having contributed to projects like Drupal GraphQL and the Rust cargo resolver where he focused on dependency-security fixes and minimal-version resolution. A long-time Drupal contributor and former member of the Drupal Security Team, he coordinates open-source security efforts today through initiatives like D7Security and project code reviews. Klaus is experienced in automated testing, performance optimization, and process automation, and mentors engineers to deliver reliable, compliant systems. Notably, his open-source work spans both high-profile ecosystems (Drupal, Cargo) and quality tooling (PHP_CodeSniffer), reflecting a pragmatic balance of code quality and operational robustness.
16 years of coding experience
11 years of employment as a software developer
Matura, Computer Engineering, Matura, Computer Engineering at HTL MössingerstraßeMaster of Science (MSc), Computer Science, Master of Science (MSc), Computer Science at Technische Universität Wien / Technical University Vienna
English, German
Stackoverflow
490reputation
19kreached
4answers
10questions
Github Skills (25)
dependency-management10
javascript10
cargo10
testing10
code-standards10
coding-conventions10
security10
automation10
php10
updater10
automations10
package-manager10
rust10
coding-style10
security-scan10
Programming languages (15)
Github contributions (5)
drupal-graphql/graphql
Apr 2019 - Dec 2022
GraphQL integration for Drupal 9/10
Role in this project:
Back-end Developer
Back-end DeveloperContributions:6 releases, 148 reviews, 86 commits in 3 years 9 months
Contributions summary:Klaus primarily focused on improving the stability and security of the project by addressing dependency vulnerabilities. They fixed security updates related to JavaScript packages used in the explorer, and updated babel to get rid of a security warning. They also contributed to improvements in the backend side, resolving undefined variables in the code, and ensuring security in the code.
drupaldrupal-9graphqldrupal-8
squizlabs/PHP_CodeSniffer
Nov 2012 - Jan 2020
PHP_CodeSniffer tokenizes PHP files and detects violations of a defined set of coding standards.
Role in this project:QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:26 commits, 23 PRs, 32 comments in 7 years 3 months
Contributions summary:Klaus's contributions primarily focused on improving the quality and reliability of the PHP_CodeSniffer project. They fixed existing coding standard violations and added new test cases to cover various scenarios, including those that exposed potential bugs or performance issues. The user also contributed to the CSS tokenizer, enhancing its functionality and correcting issues. These actions collectively enhanced the project's robustness and adherence to coding standards.
definedviolationsphpstandardsphp-codesniffer
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