WHAT IS INFORMATION TECHNOLOGY? A description of the business units can be found at: https://www.jobs.irs.gov/about/who/business-divisions Position(s) are to be filled in the following area(s): IT - End User Digital Services - Consider each location carefully when applying. If you are selected for a location, that location will become your official post of duty. REVIEW THE ADDITIONAL INFORMATION BELOW FOR FURTHER DETAILS 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. Serves as the lead architect for enterprise voice and telecommunications systems. Designs and maintains end to-end telecom and UC architectures supporting mission-critical operations. Develops strategic roadmaps for modernization, including migration to cloud-based voice solutions. Establishes and enforces architecture standards, governance, and best practices. Architects and implements cloud and hybrid voice solutions, including Microsoft Teams Phone and Direct Routing. Designs multi-site and global voice architectures ensuring scalability and resiliency. Ensures systems meet performance requirements (latency, availability, redundancy). Oversees integration of PSTN, SIP trunks, and legacy systems with modern platforms. Designs and manages Session Border Controller (SBC) architectures. Integrates telecom services with enterprise systems, contact centers, and collaboration platforms. Implements zero trust architecture principles across telecom systems. Ensures secure communications using TLS/SRTP, identity management, and conditional access. Ensures compliance with NIST, FISMA, and other federal requirements. Identifies and mitigates telecom security risks, including fraud and unauthorized access. Leads adoption of AI/AIOps capabilities for monitoring and operations. Implements Predictive analytics, Anomaly detection and Intelligent alerting. Evaluates and integrates AI-enabled telecom solutions. Ensures responsible AI use, including governance and compliance with federal AI guidance. Develops automation using PowerShell, APIs, and Infrastructure-as-Code tools. Integrates telecom systems into CI/CD pipelines and DevOps processes. Reduces manual processes through automation and standardization. Probationary Period - All newly appointed employees to the competitive (or excepted) service are subject to a probationary (or trial) period. During this time, your performance, conduct, and suitability for continued employment will be evaluated. You will not automatically convert to permanent status at the end of the probationary (or trial) period. Your supervisor must affirmatively determine that continued employment is in the best interest of the Federal service. If no certification is made before the probationary (or trial) period ends, your appointment will be terminated. You are encouraged to actively engage with your supervisor, seek feedback, and understand role expectations. Additional guidance and support will be provided during onboarding. Government Credit Card - Obtain and use a Government-issued charge card for business-related travel. Key Eligibility Requirements: U.S Citizenship - Must be a U.S. Citizen or National and provide proof of U.S. Citizenship. Selective Service Registration - Males born after December 31, 1959 are required to be registered with the Selective Service System or prove they are exempt from having to do so. Personal Identity Verification (PIV) - Must provide 2 forms of identification from the Form I-9. Federal law requires verification of the identity and employment eligibility of all new hires in the U.S. These documents must be unexpired original or certified copies. ADDITIONAL REQUIREMENTS SHOWN IN QUALIFICATIONS OR ADDTIONAL INFORMATION SECTIONS

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