Paul Elser

Secure systems, savage squats.

$whoami

Cyber Security Expert OT with experience in DevOps, Data Engineering, Kubernetes Security, and Cloud Computing. Holds an M.Sc. in Computer Science and strong expertise in security analysis of cloud architectures and Kubernetes deployments, demonstrated through a master’s thesis on secure container orchestration for vehicles. Skilled in working with large-scale data, designing scalable ETL pipelines, and building secure cloud-native solutions. Currently actively testing and hardening railway OT and automated train systems, performing ISO 62443 risk assessments, security ar- chitecture reviews, and hands-on penetration testing exercises to apply offensive security skills in OT environments. Motivated to apply deep technical expertise to strengthen cloud infrastructure, data platforms, and security-critical systems.