During December 2025, this developer enhanced the SeleniumHQ/docker-selenium repository by introducing a security-focused feature to the Selenium Grid Helm chart. The work centered on implementing network policy injection, allowing users to enable pod network isolation for Grid nodes deployed in Kubernetes environments. This addition addressed the need for stronger security in multi-tenant and CI/CD scenarios while maintaining compatibility with existing Helm deployment workflows. The feature was developed using YAML and leveraged DevOps practices alongside Kubernetes expertise, ensuring minimal disruption to operational processes. Comprehensive documentation accompanied the integration, supporting safer production deployments and aligning with Kubernetes security best practices.