Sid Sohaila developed robust PKCS#11-based mTLS certificate handling for secure device provisioning in the rdkcentral/docker-device-mgt-service-test and rdkcentral/rdkfwupdater repositories. He integrated hardware-backed key storage using Python and Shell scripting, focusing on Docker-based CI/CD workflows and cross-architecture compatibility. Sid expanded automated test coverage to validate certificate fallback scenarios and improved diagnostics for secure key storage, addressing race conditions and enhancing reliability in OpenSSL engine setup. His work strengthened the security posture of device management services by ensuring consistent PKCS#11 engine loading and certificate management, reducing provisioning risk and increasing confidence in production deployments across arm64 and x86_64 environments.