The Department of Energy is seeking to advance the development of the MASTODON software, which specializes in multi-hazard analysis for critical infrastructure. This open-source tool is designed to model stochastic nonlinear soil-structure interactions (NLSSI) and conduct dynamic probabilistic risk assessments, particularly for structures such as nuclear facilities, dams, and bridges in response to natural disasters. MASTODON leverages the MOOSE framework to provide high-fidelity simulations of seismic wave propagation and quantifies uncertainties to enhance risk assessment reliability. Interested parties can reach out to Andrew Rankin at andrew.rankin@inl.gov for further information regarding this opportunity.