Worked on security hardening and CI/CD stability for the icanbwell/helix.fhir.client.sdk and SparkPipelineFramework repositories, focusing on dependency management and workflow automation. Addressed security vulnerabilities by updating Python dependencies and stabilizing Pipfile.lock, while implementing non-root Docker images to improve container security. Enhanced CI reliability by pinning GitHub Actions and resolving permissions issues in build and workspace directories, ensuring reproducible builds and proper artifact ownership. Utilized Dockerfile, Python, and YAML to deliver reproducible, secure workflows and faster vulnerability remediation. The work resulted in a stronger security posture, more stable dependency graphs, and improved test reliability across both repositories.