Senior PowerBuilder Developer

Job Summary We are seeking a Senior PowerBuilder Developer with prior tax domain experience to support and enhance enterprise-scale tax applications as part of a long-term modernization initiative. This role focuses on maintaining legacy systems, developing integrations, and supporting ongoing enhancements in a collaborative Agile environment. The ideal candidate has strong PowerBuilder expertise, solid relational database experience, and hands-on knowledge of tax processing systems, preferably within state tax or revenue environments. Responsibilities Maintain, enhance, and support legacy PowerBuilder-based tax applications Design and develop system integrations and interfaces Perform application analysis, troubleshooting, and defect resolution Support modernization and phased rollout initiatives Collaborate with business analysts, QA, and project managers Participate in Agile ceremonies (planning, stand-ups, reviews) Ensure code quality, performance, and maintainability Create and maintain technical and functional documentation Required Qualifications 5+ years of PowerBuilder development experience (PowerBuilder 12.5 or higher) Prior hands-on experience with tax systems is required Strong experience with relational databases: Oracle 19c or higher MySQL or similar Experience supporting enterprise-scale transactional systems Ability to write clean, maintainable, well-documented code Familiarity with Agile development methodologies Experience using project tracking tools (e.g., Azure DevOps or similar) Strong written and verbal communication skills Preferred Qualifications Experience with state tax or revenue systems (highly preferred) Knowledge of tax processing, billing, collections, penalties, or revenue accounting Experience working on legacy system modernization projects Background in large, multi-team or government environments Pay: $70.00 - $85.00 per hour Expected hours: 40.0 per week Work Location: Hybrid remote in Fairfax, VA 22030