Legacy Code Modernization and Computational Analysis

The contract seeks to modernize legacy Fortran code used in hydrologic modeling while developing new Python or R scripts to enhance data preprocessing, postprocessing, automation, and overall computational efficiency. The work involves transforming outdated, manual processes into streamlined, scalable workflows that reduce runtime, minimize errors, and improve data handling for hydrologic simulations. The contractor will be responsible for understanding the existing Fortran systems, documenting their functionality, and replacing or augmenting them with modern, maintainable scripts that integrate seamlessly with current data infrastructure. The project is positioned as a subcontract under the Sonoma County Water Agency with a performance location in Santa Rosa, California, and is governed by NAICS code 541511 for custom computer programming services. Response submissions are due by August 5, 2026, and the work is expected to deliver tangible improvements in the speed, accuracy, and reproducibility of hydrologic analyses. The successful bidder must demonstrate expertise in both legacy code remediation and modern scripting environments, with a focus on practical, field-deployable solutions that support water resource management and modeling objectives.