I.M. Systems Group, Inc. (IMSG)’s (www.imsg.com) eIAWS® solution integrates sets of heterogeneous observations (from in-situ, radar, and satellite platforms), NWP model outputs, analyses, and nowcasting results for frequently updated en-route and airport terminal aviation weather to support the decision making by domestic and international users in the civil aviation sector. We are seeking a highly motivated/talented Numerical Weather Modeling System Scientist to support multiple development needs for our customers. Solid Linux workflow programming, scientific software development, data handling skills, ability to design, enhance, and implement algorithms, and creativity are all emphasized. This position will be focused on eIAWS® mesoscale numerical weather prediction (NWP) modeling system, which uses workflow managements (rocoto, ecflow, airflow) and scripts (bash, kshell, python) to integrate data processing, convective nowcasting, weather model initialization, data assimilation, NWP modeling running and post-processing, aviation weather product generating, result verification, and delivering to an integrated operational system to work seamlessly and automatically. This scope of work will include (but not limited to) Learning and mastering the existing algorithm and code modules; Developing and maintaining workflow scripts to run multiple programs with dependencies on other and on time; Conducting and monitoring NWP model operations on daily basis; Cooperating with other team members to ensure data flow throughout the entire prediction process; Assisting in algorithms enhancements for product generation, visualization, and performance evaluation; Assisting in deploying the upgrades to production system; Documenting the development and user operations and maintenance manual. Work location will be at IMSG HQ Office in Rockville, Maryland and/or virtual at home with company provided computer and software.