Cornerstone Defense is looking for a Multi-Level Guard / Cross-Domain Solution knowledgeable Engineer to maintain multiple Cross-Domain Solutions deployed into operations and to configure, deliver, and maintain additional Cross-Domain Solutions. This individual will work closely with developers to ensure the guard meets system needs including future updates and changes, with security personnel to aid in obtaining and maintaining security accreditation, and with the system maintenance team to ensure ongoing operations of the Cross-Domain Solutions. Additional duties include working with DevOps and System Administration teams to support additional areas of the operational deployment.