Senior Unified Communications Voice Architect #1888985

Network Designs•Washington, DC

16h•Onsite

About The Position

Network Designs, Inc. (NDi) is seeking a technically experienced, solutions-driven Senior Unified Communications Voice Architect to lead deployment, configuration, troubleshooting, and lifecycle management of enterprise voice and telephony solutions across an environment spanning more than 800 sites. The role supports Microsoft Teams Voice, Avaya, Managed Secure Telephony Platform (MSTP), Enterprise Voice over IP (EVoIP), Cisco voice technologies, and related enterprise systems. The architect will perform hands-on implementation, solution development, system optimization, troubleshooting, and operational support while ensuring compliance with federal cybersecurity standards. The position is onsite five days per week in Washington, D.C., with travel of up to 25%. It requires U.S. citizenship, an active TS clearance at the time of application, willingness and ability to obtain SCI access, and passing a CI polygraph. The architect will coordinate with engineering, operations, security, vendors, government personnel, and customer stakeholders in high-visibility enterprise and government environments. NDi is a Federal contractor founded in 1985 and emphasizes collaboration, career growth, and winning ideas. Military veterans are encouraged to apply. The role requires a bachelor's degree in Information Systems, Computer Science, Business Systems, or a related field, and at least eight years of enterprise telephony or unified communications experience, including at least one year directly supporting Microsoft Teams Phone System. The position also supports process improvement, secure reach-back, technical knowledge sharing, and mentoring junior staff.

Requirements

U.S. citizenship.
Active TS clearance at the time of application; willingness and ability to obtain SCI access; and ability to pass a CI polygraph.
Bachelor's degree in Information Systems, Computer Science, Business Systems, or a related field.
At least 8 years of experience in enterprise telephony or unified communications.
At least 1 year of direct experience supporting Microsoft Teams Phone System.
Hands-on experience managing, configuring, and troubleshooting Avaya, MSTP, Microsoft Teams Voice, and EVoIP solutions.
Experience supporting MSTP engineering activities, including system configuration, endpoint connectivity, performance troubleshooting, and operational readiness.
Strong knowledge of Microsoft Teams Voice technologies, including Direct Routing, Operator Connect, Session Border Controllers, SIP/VoIP routing, and dial plan design.
Experience with Avaya, MSTP, Cisco voice technologies, Microsoft platforms, Power BI, SAF, and enterprise telephony tools.
Proficiency with PowerShell scripting, Microsoft Teams Admin Center, Microsoft 365 Admin Center, Jira, and ITSM platforms for incident management, service requests, escalations, T4 tickets, workflows, and task tracking.
Strong troubleshooting, root cause analysis, and problem-resolution skills in complex enterprise voice environments.
Ability to configure and optimize Avaya, MSTP, Microsoft Teams Voice, and EVoIP solutions to meet business, operational, security, and enterprise objectives.
Strong communication skills with technical and non-technical stakeholders, including communicating technical issues, risks, outages, operational impacts, and remediation efforts to leadership and customers.
Experience collaborating with government personnel, civilian engineering teams, vendors, and operational support organizations to identify risks, anticipate customer concerns, and coordinate resolution across teams.
Ability to work onsite five days per week in Washington, D.C., and travel up to 25%.

Nice To Haves

Experience migrating from legacy PBX systems to Microsoft Teams Voice.
Familiarity with government cybersecurity compliance frameworks, including STIGs, FISMA, and NIST.
Experience integrating Teams Voice with third-party systems or services.
Microsoft 365 Certified: Collaboration Communications Systems Engineer Associate certification, or equivalent certification.
Experience providing secure reach-back support in a federal or enterprise environment.
Experience supporting business process modeling, process improvement, or reengineering efforts.

Responsibilities

Lead implementation and support of enterprise voice services across more than 800 locations, including Microsoft Teams Voice, Avaya, MSTP, EVoIP, Cisco voice technologies, and related platforms.
Oversee MSTP engineering activities, including configuration, endpoint connectivity, operational readiness, and system performance.
Manage, configure, and troubleshoot Avaya and MSTP systems to ensure reliable, optimized solutions aligned with business needs.
Support Microsoft Teams Phone System, Direct Routing, Operator Connect, SBC configuration, SIP/VoIP routing, and dial plan design.
Configure and maintain voice features and services, including E911, call queues, auto attendants, voicemail, number management, and endpoint connectivity.
Maintain and support Enterprise Voice over IP systems.
Conduct infrastructure health checks and apply software, firmware, and security updates to telephony systems and components.
Manage development and test lab environments to validate VoIP devices and Analog Telephone Adapters.
Integrate telephony solutions with enterprise systems, service desks, and ITSM workflows to support business continuity.
Provide back-end engineering support for MSTP troubleshooting and resolve T4 telephony tickets in a timely and effective manner.
Provide business process modeling and reengineering support to improve telephony operations, workflows, and service delivery.
Provide secure reach-back support to stakeholders, technical teams, vendors, and operational support personnel.
Apply and maintain STIGs, support vulnerability scanning and remediation, and ensure PKI and certificate validity.
Use monitoring tools, dashboards, and Power BI as applicable to track uptime, performance, usage trends, service risks, and operational impacts.
Serve as an escalation point for complex telephony issues and coordinate resolution across IT, security, engineering, vendor, government, and operations teams.
Identify service-impacting issues proactively and recommend corrective actions before escalation or operational disruption.
Ensure technical strategies, configurations, and voice solutions align with business needs, security requirements, and enterprise objectives.
Support junior engineers and staff through documentation, peer reviews, technical guidance, and knowledge sharing.