You will analyze, assess, and remediate security vulnerabilities within the TYPO3 Core and extensions while contributing to security audits and code reviews. Additionally, you will collaborate with international developer communities to monitor threats and implement security best practices.
Your mission
Your Responsibilities
Analyze, assess, and remediate security vulnerabilities in the TYPO3 Core and in extensions
Contribute to security audits and code reviews with a focus on secure software development
Develop and implement security best practices for open source projects
Support the coordination and publication of security advisories
Collaborate with international developer communities
Monitor security threats and derive appropriate countermeasures
Your profile
Your Profile
Several years of experience in IT security, ideally in an open source environment
Very good knowledge of PHP and experience with TYPO3 CMS (Core or extensions)
Experience with common security standards (e.g., OWASP Top 10)
Know-how in topics such as authentication, authorization, encryption, and web security
Experience with code analysis tools and penetration testing is a plus
Structured and self-directed way of working
Good English skills (project communication at an international level)
Nice to Have
Experience contributing to open source projects
Knowledge of CI/CD pipelines and automated security checks
Understanding of hosting and infrastructure security
Why us?
What We Offer
Collegial working environment, agile work culture and a first-name culture, flat hierarchies, and short decision-making processes
Collaboration with a dedicated international community
Free choice of your operating system
We take a long-term approach and seek like-minded people in the open-source environment
We strongly believe in open-source morality
Appreciation of new ideas and the opportunity for personal development
Space for personal and professional development
Regular attendance at TYPO3 Camps, Developer Days, and external events is happily supported
Remote-first culture with optional in-person meetups
Flexible working hours (full-time or part-time possible)
About us
TYPO3 GmbH creates, supports, and promotes services that enhance and improve the TYPO3 Project ecosystem. In other words, we make the TYPO3 CMS work better for you.
Our mission is to enable and strengthen the broader TYPO3 Community. This goal informs everything we do, including partner promotion, professional development, knowledge-sharing, and support services.
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