Information Technology Specialist (Applications Software)

Duties The following are the duties of this position at the full working level. If this vacancy includes more than one grade and you are selected at a lower grade level, you will have the opportunity to learn to perform these duties and receive training to help you grow in this position. Design, develop, test, deploy, and maintain secure application components that support IRS business and mission needs. Analyze and refactor codebases to derive undocumented requirements, modernize architecture, and align systems with current frameworks, accessibility and security standards. Work across multiple software layers and languages, including front-end, Application Programming Interface (API), service, and data layers, potentially spanning multiple products. Collaborate across one or more delivery teams with technical and non-technical stakeholders to clarify requirements, triage issues, validate implementation plans, and ensure technical cohesion and consistent standards across the enterprise. Participate in incident response and support operations, including proactive identification and correction of software defects through code inspection, telemetry analysis and log review. Conduct root-cause analysis and implement corrective actions to prevent recurrence. Solicit, refine, and document functional and technical requirements, and maintain reusable technical patterns, architectural decisions, and troubleshooting playbooks to support knowledge sharing across teams.