Specialized experience is experience that has equipped you with the particular ability, skill, and knowledge to successfully perform the duties of this position and is typically in or related to this line of work. To qualify for GS-15, you must have one year of directly related specialized experience equivalent to the GS-14 level. Designing or evaluating enterprise-level system architectures for large-scale scientific or operational data systems, including defining interoperability standards, integration approaches, and technical requirements across multiple organizational components; Leading or coordinating systems engineering activities supporting the modernization, consolidation, or transition of data ingest, archive, or distribution systems in a cloud or hybrid computing environment; Representing a program or organization in technical forums, interagency working groups, or senior leadership engagements to communicate systems engineering strategies, architectural decisions, or modernization plans. AND IF you are qualifying based on experience, you MUST also have IT-related experience demonstrating each of the four competencies listed below: Attention to Detail - Is thorough when performing work and conscientious about attending to detail. 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. Oral Communication - Expresses information (for example, ideas or facts) to individuals or groups effectively, taking into account the audience and nature of the information (for example, technical, sensitive, controversial); makes clear and convincing oral presentations; listens to others, attends to nonverbal cues, and responds appropriately. Problem Solving - Identifies problems; determines accuracy and relevance of information; uses sound judgment to generate and evaluate alternatives, and to make recommendations. Your resume must include a clear and detailed narrative description, in your own words, of how you meet the required specialized experience. Experience statements copied from a position description, vacancy announcement or other reference material constitutes plagiarism and may result in disqualification and losing consideration for the job. NASA prohibits the use of artificial intelligence (AI) or AI-assisted tool in drafting application and assessment responses. Please visit https://www.nasa.gov/careers/how-to-apply/#Artificial-Intelligence to review NASA's guidance on the use of AI tools during the application process.