Voice Engineer

Custom Business Solutions, Inc.; Livonia (MI); On-site; USD 120,000 - 150,000; Full time

Job summary

Custom Business Solutions, Inc. is seeking a Voice Engineer to design, implement, maintain, and troubleshoot enterprise voice and contact center environments. You will work with Cisco Contact Center technologies, CUCM, and Genesys C73 across SIP and VoIP infrastructures.

The role involves configuring and supporting IVR, CTI, call routing, and integration with PSTN and enterprise apps, plus ongoing diagnostics and documentation.

Qualifications

• 5+ years in enterprise voice, VoIP, or contact center environments.
• Hands-on experience with Cisco Contact Center technologies or Genesys C73.
• Strong experience with Cisco Unified Communications Manager (CUCM).
• Strong understanding of SIP, RTP, TCP/IP, DNS, DHCP, QoS, and VoIP protocols.
• Experience troubleshooting SIP signaling and call flows using packet captures and protocol traces.
• Experience with Cisco gateways, CUBE/Client technologies, SIP trunks, dial peers, and PSTN connectivity.

Responsibilities

• Design, deploy, configure, and support enterprise VoIP and voice infrastructure.
• Administer and troubleshoot Cisco Contact Center environments (UCCE, CUCM, etc.).
• Support Genesys C73 contact center platforms, including configuration and integrations.
• Configure and troubleshoot SIP trunks, gateways, dial peers, and signaling.
• Develop and troubleshoot IVR, ACD, CTI, call-flow, and routing configurations.
• Monitor voice and contact center environments; identify performance and availability issues.

Skills

VoIP troubleshooting

Cisco Contact Center

Genesys C73

CUCM

SIP protocol

Call routing

IVR/CTI

Packet capture analysis

Documentation

Tools

Wireshark

Job description

Voice Engineer

Position Overview

We are seeking an experienced Voice Engineer to design, implement, maintain, and troubleshoot enterprise voice and contact center environments. The ideal candidate will have strong hands-on experience with Cisco Contact Center technologies, Cisco Unified Communications, and Genesys C73, along with a solid understanding of SIP, VoIP, routing, and call-flow architecture.

Key Responsibilities

• Design, deploy, configure, and support enterprise VoIP and voice infrastructure.
• Administer and troubleshoot Cisco Contact Center environments, including Cisco Unified Contact Center Enterprise (UCCE), Cisco Unified Communications Manager (CUCM), and related voice components.
• Support and maintain Genesys C73 contact center platforms, including configuration, call routing, agent functionality, and integrations.
• Configure and troubleshoot SIP trunks, gateways, dial peers, call routing, codecs, DTMF, and signaling.
• Develop and troubleshoot complex IVR, ACD, CTI, call-flow, and routing configurations.
• Monitor voice and contact center environments and proactively identify performance, capacity, and availability issues.
• Troubleshoot voice-quality problems involving latency, jitter, packet loss, echo, and codec mismatches.
• Integrate voice platforms with PSTN carriers, Clients, CRM applications, recording platforms, workforce management systems, and other enterprise applications.
• Perform upgrades, migrations, patching, and lifecycle management for Cisco and Genesys platforms.
• Analyze SIP traces, call logs, packet captures, and application logs to identify and resolve complex incidents.
• Work with network, security, application, carrier, and infrastructure teams to resolve end-to-end voice issues.
• Create and maintain technical documentation, network diagrams, configuration standards, and operational procedures.
• Participate in implementation projects, change management, testing, and production cutovers.
• Provide escalation support for critical voice and contact center incidents.

Required Qualifications

• 5+ years of experience supporting enterprise voice, VoIP, or contact center environments.
• Hands-on experience with Cisco Contact Center technologies or Genesys C73.
• Strong experience with Cisco Unified Communications Manager (CUCM).
• Strong understanding of SIP, RTP, TCP/IP, DNS, DHCP, QoS, and VoIP protocols.
• Experience troubleshooting SIP signaling and call flows using packet captures and protocol traces.
• Experience with Cisco gateways, CUBE/Client technologies, SIP trunks, dial peers, and PSTN connectivity.
• Knowledge of IVR, ACD, CTI, call routing, agent states, queues, and contact center reporting.
• Experience with enterprise voice monitoring and troubleshooting tools.
• Strong analytical, troubleshooting, documentation, and communication skills.

Preferred Qualifications

• Performed basic network configuration and troubleshooting using routers, switches, IP addressing, VLANs, and DHCP.
• Cisco CCNA/CCNP Collaboration or equivalent experience.
• Genesys certifications or equivalent Genesys platform experience.
• Experience with Cisco UCCE, CVP, Finesse, CTI, and ICM scripting.
• Experience with Genesys routing, SIP Server, Configuration Server, Management Framework, and reporting components.
• Experience with cloud or hybrid contact center environments.
• Knowledge of Microsoft Teams Phone, Clients, Webex Calling, or other UC platforms.
• Experience with automation and scripting using Python, PowerShell, or similar technologies.

Core Technical Skills

Cisco: CUCM, UCCE, CVP, Finesse, CUBE, gateways, SIP, dial peers, ICM scripting
Genesys: Genesys C73, routing, SIP, CTI, IVR, ACD, reporting
Protocols: SIP, RTP, TCP/IP, DNS, DHCP, HTTP/HTTPS
Networking: QoS, VLANs, routing, switching, firewalls, Clients
Troubleshooting: Wireshark, SIP traces, packet captures, call-flow analysis, voice-quality analysis
Platforms: Enterprise VoIP, Contact Center, IVR, CTI, PSTN, SIP Trunking

Key Attributes

• Strong problem-solving and analytical skills
• Ability to troubleshoot complex voice issues under pressure
• Excellent communication and cross-functional collaboration skills
• Strong documentation and change-management discipline
• Ability to work independently while supporting enterprise production environments