For the GS-15: You must have earned a professional law degree (J.D. or LL.B.) from a law school accredited by the American Bar Association, be an active member of the Bar, and have at least four (4) years of professional legal experience, one of which was specialized experience at, or equivalent to the GS-14 grade level. Professional legal education above the first professional law degree may be substituted for experience required as follows:(a) The second professional law degree (LL.M) may be substituted for one year of experience (b) The third law degree (J.S.D) may be substituted for one year of experience beyond the LL.M. Experience refers to paid and unpaid experience, including volunteer work done through National Service programs (e.g., Peace Corps, AmeriCorps) and other organizations (e.g., professional; philanthropic; religious; spiritual; community, student, social). Volunteer work helps build critical competencies, knowledge, and skills and can provide valuable training and experience that translates directly to paid employment. You will receive credit for all qualifying experience, including volunteer experience. Applicants must possess excellent research and oral and written communication skills. Experience in one or more of the following areas is preferred: Exceptional experience making or recommending decisions in federal, state, administrative, or specialized courts. Exceptional experience in litigation at the appellate, trial, or administrative hearing level. Exceptional skill and ability to communicate highly complex and at times controversial legal and administrative issues both orally and in writing, with a preference for experience with maritime, antitrust, or economic issues.