Required/Desired Skills Skill Required /Desired Amount of Experience Proven experience designing, building, and maintaining enterprise-level Java applications Required 5 Years Expertise in complex query development, performance tuning, and data structure design Required 5 Years Experience creating, consuming, and modifying APIs to support system-to-system integration Required 5 Years Experience migrating legacy applications to new platforms, including data conversion and system cutover planning Required 5 Years Ability to work across requirements, design, development, testing, and deployment phases Required 5 Years Experience providing operational support for live systems, including defect diagnosis and resolution under time constraints Required 5 Years Position Summary This position provides advanced Java development support for the Environmental Protection Agency's (EPA) Safe Drinking Water Information System (SDWIS) and the ongoing migration to the Drinking Water State-Federal-Tribal Information Exchange System (DW-SFITES).