About the role
O2 Technologies, Inc. is hiring a Java Developer to support EPA water information systems. The role focuses on SDWIS operations, DW-SFITES migration, legacy application modernization, data and system integration, operational support, and regulatory compliance. ResponsibilitiesEPA Water Information SystemsSafe Drinking Water Information System (SDWIS) OperationsDrinking Water State‑Federal‑Tribal Information Exchange (DW‑SFITES) MigrationLegacy Application Migration & Cutover PlanningData Conversion & IntegrationSystem Integration & API ManagementOperational Support & Incident ResolutionRegulatory Compliance (EPA Standards)Cross‑Functional Stakeholder Collaboration QualificationsAdvanced Java DevelopmentOracle Database (SQL / PL/SQL)API Development & IntegrationLegacy Application MigrationPerformance Tuning & Query OptimizationAI‑Assisted Development Tools (GitHub Copilot, ChatGPT, Claude)Dashboard Development (Power BI / Tableau)Git (Version Control)Bachelor's Degree in Computer Scienc