Principal Software Engineer

Principal Software Engineer

21 May 2026
Pennsylvania, Philadelphia, 19113 Philadelphia USA

Principal Software Engineer

Essential FunctionsConfigure and extend FAST/GenTax functionality for City-specific use cases using FAST tools and C#.Design, build, and maintain services, integrations, and APIs that connect Revenue IT systems with other City applications and data sources.Write and optimize SQL for reporting, data migration, and application features across SQL Server/Oracle/PostgreSQL environments.Participating in agile ceremonies; scope work with product and business partners; turn evolving requirements into robust technical solutions.Review code, write unit/integration tests (“if it isn’t tested, it doesn’t ship”), and monitor features after launch to ensure quality and performance.Support production systems—triaging incidents, debugging complex issues, and implementing fixes and follow‑ups.Document designs, decisions, and runbooks for maintainability and knowledge sharing.Uphold City standards and policies—especially around data security and compliance applicable to Revenue systems. 

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