GS-12: In addition to the Basic Requirements for this position, your resume must also demonstrate at least one year of specialized experience at or equivalent to the GS-11 grade level or pay band in the Federal service or equivalent experience in the private or public sector. Specialized experience must demonstrate the following: Applying advanced principles and practices of naval architecture to investigate complex technical issues and provide expert consultative advice on the entire range of vessel design and construction activities. Integrating knowledge of related engineering disciplines, specifically mechanical and electrical systems, to support comprehensive naval architecture projects and operations. Overseeing, evaluating, or providing authoritative technical guidance on drydocking facilities, ship handling systems, and the execution of dry dock certification programs. Serving as a primary technical spokesperson and subject matter expert to effectively communicate complex naval architecture strategies, findings, and expert advice to headquarters and field personnel. GS-11: In addition to the Basic Requirements for this position, your resume must also demonstrate at least one year of specialized experience at or equivalent to the GS-09 grade level or pay band in the Federal service or equivalent experience in the private or public sector. Specialized experience must demonstrate the following: Applying fundamental principles and practices of naval architecture to support the design, construction, modification, or repair of vessels. Utilizing a working knowledge of related engineering disciplines, such as mechanical and electrical systems, to assist in resolving ship design or operational issues. Assisting in the review, inspection, or evaluation of drydocking facilities and ship handling systems, including supporting dry dock certification activities. Preparing technical reports, drawings, and briefings to effectively communicate engineering concepts, findings, and recommendations to project teams and field personnel. Additional qualification information can be found from the following Office of Personnel Management website: https://www.opm.gov/policy-data-oversight/classification-qualifications/general-schedule-qualification-standards/#url=List-by-Occupational-Series https://www.opm.gov/policy-data-oversight/classification-qualifications/general-schedule-qualification-standards/0800/naval-architecture-series-0871/ Experience refers to paid and unpaid experience, including volunteer work done through National Service programs (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.