Knowledge of IT INFOSEC security requirements for certification and accreditation, network operations and protocols, systems testing and evaluation, and performance management methods sufficient to plan and conduct security accreditation reviews for installed systems or networks and assess and advise on new or revised security measures and countermeasures based on the results of accreditation reviews. Customer Service - Works with clients and customers (that is, any individuals who use or receive the services or products that your work unit produces, including the general public, individuals who work in the agency, other agencies, or organizations outside the Government) to assess their needs, provide information or assistance, resolve their problems, or satisfy their expectations; knows about available products and services; is committed to providing quality products and services.