Mohammed Irfan worked on container security hardening for the geosolutions-it/MapStore2 repository, focusing on reducing the risk of container compromise by ensuring containers run as non-root users. He updated the main Dockerfile to create and utilize a dedicated non-root user and group, and modified the PostgreSQL Dockerfile to run as the default 'postgres' user, aligning with security best practices. This work leveraged his skills in DevOps, Docker, and security, and was implemented entirely in Dockerfile syntax. The changes addressed a specific security concern, providing a targeted improvement to the repository’s containerization approach within a concise development period.