Senior Telecommunications, Unified Communications Specialist

DecisionPoint Corporation

. Provide senior engineering and operational support for enterprise voice and unified-communications services .

Posted 10/26/2026full-timeNorth Chicago • Illinois • United StatesSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive experience in telecommunications engineering and unified communications, with a strong focus on VoIP, call management, and mobile-device services. Proficient in troubleshooting, coordinating service restoration, and maintaining technical documentation in compliance with government standards.

Highest-signal resume keywords

Telecommunications EngineeringUnified CommunicationsVoIP SupportSIP Trunk ConfigurationCisco Unified Communications Manager

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Call Management PlatformsVoIP Handset ConfigurationTelecommunications TroubleshootingDial Plans MaintenanceIncident DocumentationTelecommunications CutoversVoice Quality TroubleshootingMobile Device EnrollmentFirmware UpdatesNetwork Configuration

Soft Skills

Technical Problem-SolvingCustomer ServiceCoordinationWritten CommunicationVerbal Communication

Tools & Technologies

Cisco JabberMicrosoft TeamsServiceNowWebex CallingSIP Protocols

Certifications & Qualifications

Cisco Certified Network AssociateCisco Certified Network Professional CollaborationCompTIA Network+CompTIA Security+Microsoft 365 Certified: Teams Administrator AssociateITIL v4 Foundation

Industry Keywords

Telecommunications ServicesGovernment Mobile DevicesDISA TrainingEmergency Calling ServicesFederal Telecommunications Environments

Tech Stack

Tools & technologies

ServiceNowUnityVoIP

About the role

Key responsibilities & impact

Provide senior engineering and operational support for enterprise voice and unified-communications services
Administer, maintain, update, and troubleshoot approved call-management platforms
Support vendor, security, firmware, and software patches and platform upgrades
Configure, test, install, register, relocate, replace, and remove VoIP handsets and related communications devices
Support VoIP users, extensions, device profiles, calling permissions, and assigned features
Maintain dial plans, call-routing configurations, number assignments, hunt groups, call queues, and voice settings
Troubleshoot voice-quality, call-routing, registration, signaling, media, voicemail, feature, and connectivity problems
Diagnose and resolve SIP trunk, gateway, carrier, session, and call-establishment issues
Support voicemail, softphone clients, call recording, collaboration tools, and related communications services
Support Jabber, Microsoft Teams voice, or comparable unified-communications capabilities
Coordinate changes affecting call routing, trunks, gateways, voicemail, emergency calling, and enterprise voice services
Support telecommunications cutovers for facility moves, technology refreshes, service transitions, and carrier changes
Develop cutover plans, implementation checklists, validation steps, communication plans, and rollback procedures
Coordinate cutover activities with carriers, vendors, local service providers, network teams, site personnel, and Government representatives
Validate calling, extensions, emergency calling, voicemail, call forwarding, and other functions following cutovers
Support landline, VoIP, fax, IP and analog speaker, SIP trunk, mobile-device, hotspot, and related telecommunications services
Coordinate maintenance and restoration with commercial carriers, DISA, utilities, vendors, and other service providers
Open, update, escalate, and monitor carrier or vendor trouble tickets through restoration
Respond to telecommunications outages and provide technical information to the Service Desk and Outage Response Team
Isolate incidents originating from endpoints, cabling, call-management systems, voice applications, circuits, carriers, or external providers
Implement approved temporary workarounds or rerouting measures
Confirm service restoration through technical testing and validation
Support incident reports and root-cause analyses with logs, configurations, carrier information, actions, timelines, and recommendations
Perform or coordinate telecommunications cabling and support telecom-room, rack, patch-panel, gateway, and handset documentation
Support telecommunications services at the USMEPCOM COOP site, including 24/7/365 response during exercises, activations, outages, and operational events
Configure, issue, reset, troubleshoot, recover, register, and support Government mobile devices
Complete mobile-device enrollment and configuration activities and support PKI-enabled functionality
Track device distribution, assignment, return, replacement, configuration, and registration status
Coordinate mobile-device activation, suspension, replacement, number transfer, and service termination
Maintain separation of duties and protect sensitive telecommunications information
Maintain procedures, field guides, troubleshooting guides, checklists, training materials, diagrams, and standard operating procedures
Provide technical training, demonstrations, and knowledge transfer
Maintain inventories, architecture diagrams, call-flow diagrams, carrier information, circuit records, configuration baselines, and recovery documentation
Review performance, incident, and usage data to identify recurring issues, capacity concerns, and improvements
Follow incident, problem, change, release, configuration, asset, security, and quality-management processes
Provide telecommunications status, accomplishments, outage information, risks, issues, and corrective actions for reporting

Requirements

What you’ll need

Active Secret clearance or higher
Bachelor’s degree in information technology, information systems, or a related field, or equivalent professional experience where permitted by the applicable labor category
Minimum of eight years of relevant experience in telecommunications engineering, unified communications, VoIP, voice infrastructure, mobile-device services, or a related technical discipline
Experience supporting enterprise call-management, SIP, handsets, voicemail, mobile devices, telecommunications carriers, and service restoration
Experience configuring, registering, installing, and troubleshooting enterprise voice or unified-communications devices
Experience diagnosing telecommunications outages and coordinating corrective actions with carriers, vendors, network teams, and service providers
Experience supporting telecommunications cutovers, facility moves, service transitions, or technology refreshes
Ability to possess or successfully complete and maintain Government-required mobile-device enrollment and PKI training and authorization before performing controlled enrollment functions
Ability to complete and maintain applicable DISA training and authorization required for mobile-device registration
Ability to maintain accurate incident, device, circuit, configuration, carrier, and technical documentation
Ability to work on-site in North Chicago, Illinois
Ability to support after-hours maintenance, on-call response, COOP activities, and critical outage restoration when required
Strong written, verbal, customer-service, coordination, and technical problem-solving skills
Preferred: Experience supporting federal or Department of Defense telecommunications environments
Preferred: Experience administering Cisco Unified Communications Manager, Cisco Unity Connection, Cisco Unified Border Element, or comparable voice platforms
Preferred: Experience with SIP, RTP, SRTP, SCCP, H.323, MGCP, and related voice protocols
Preferred: Experience supporting voice gateways, session-border controllers, SIP trunks, dial plans, call routing, or emergency-calling services
Preferred: Experience with Microsoft Teams Phone, Cisco Jabber, Webex Calling, or comparable collaboration platforms
Preferred: Experience supporting Government mobile-device enrollment, PKI, CAC, derived credentials, or DISA registration processes
Preferred: Experience supporting COOP telecommunications services and continuity exercises
Preferred: Cisco Certified Network Associate certification
Preferred: Cisco Certified Network Professional Collaboration certification
Preferred: CompTIA Network+ or Security+ certification
Preferred: Microsoft 365 Certified: Teams Administrator Associate or another relevant Microsoft certification
Preferred: BICSI or another relevant telecommunications certification
Preferred: ITIL v4 Foundation certification
Preferred: Experience using ServiceNow or another enterprise IT service-management platform

Benefits

Comp & perks

After-hours work, on-call support, planned maintenance, emergency restoration, and travel to remote locations may be required
Regular full-time employment
Equal Employment Opportunity and Affirmative Action employer