Worked on targeted infrastructure improvements across two repositories, focusing on deployment reliability and security. In HabanaAI/vllm-fork, addressed a documentation bug by correcting Helm chart installation instructions, which improved onboarding and reduced deployment errors. For hpi-schul-cloud/infra-ansible-collections, delivered a security hardening update by ensuring CORS and Content Security Policy headers are always enforced in Nginx proxy configurations, closing a gap in header application. The work demonstrated proficiency with DevOps practices, Nginx configuration, and documentation using Jinja2 and reStructuredText. Each fix was well-scoped, traceable, and contributed to more robust deployment and security workflows without introducing new features.