Placement Typically, depending on an applicant's education, experience, other qualifications they possess, if they are a fit for the company and local office culture, and the current business needs, a Mid-Level Geotechnical Seismic Modeling Engineer typically would be placed at a Shannon & Wilson Senior Professional I, II, or III level. Responsibilities Perform geotechnical seismic hazards analyses, 1D and 2D site-response, and soil-structure-interaction evaluations for projects utilizing FLAC, PLAXIS, and other geotechnical modeling software for analysis and design.