To be considered qualified for this position you must meet the following qualification requirements for the respective grade level in which you are applying. GS-13 Specialized Experience: You qualify for the GS-13 level (starting salary $121,785.00) if you possess one year of specialized experience equivalent to the GS-12 level performing duties such as: Investigating reports of weapon misuse or malfunction and providing analysis and recommendations to law enforcement and/or military agencies. Developing test plans for firearm modification, and performance optimization. Conducting equipment testing on weapons, ammunition, and related equipment using manual and machine tools. Time-in-Grade Requirements: Under competitive merit promotion procedures, any individual who is currently holding, or who has held within the previous 52 weeks, a General Schedule position under a non-temporary appointment in the competitive or excepted service, must meet "time-in-grade" requirements (have served 52 weeks at the next lower grade of the grade for which you are applying). Time-In-Grade requirements also apply to current competitive service employees applying for a Veterans Employment Opportunities Act of 1998 (VEOA) appointment. NOTE: All current or former Federal employees must provide a copy of their SF-50, "Notice of Personnel Action" that indicates proof of status and time-in-grade eligibility. The SF-50 must include your position, title, series, grade, step, tenure (1 or 2), and type of service (Competitive or Excepted). You may need to submit more than one SF-50 to comply. The qualification requirements listed above must be met by the closing date of this announcement. 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.