Ribbon Communications Session Border Controller (SBC) Subject Matter Expert (SME)

Employment Type: Full-Time

Work Location: Remote

Experience Required: 10+ Years

About BizTech Fusion

BizTech Fusion has been a trusted technology partner for years, connecting top talent with leading organizations to support critical technology initiatives. We are partnering with one of our long-standing clients to hire a Ribbon Communications Session Border Controller (SBC) Subject Matter Expert (SME) to support enterprise voice and Unified Communications (UC) solutions.

Job Overview

We are seeking an experienced Ribbon Communications SBC SME to join our client's team in a full-time remote role. The ideal candidate will have deep expertise in Ribbon/Sonus Session Border Controllers, SIP signaling, Microsoft Teams Direct Routing, and enterprise Unified Communications architecture.

This role will focus on designing, implementing, securing, troubleshooting, and optimizing enterprise voice solutions while collaborating with cross-functional teams to deliver reliable, scalable, and secure communication platforms.

Key Responsibilities

• Design, deploy, configure, and support Ribbon Communications (formerly Sonus) SBC solutions.
• Implement and manage Microsoft Teams Direct Routing and enterprise voice integrations.
• Configure and troubleshoot SIP trunks, VoIP, RTP, SRTP, TLS, and voice connectivity issues.
• Integrate Ribbon SBC platforms with Microsoft Teams, Skype for Business, Cisco CUCM, Avaya Aura, Mitel, and other UC platforms.
• Perform advanced troubleshooting, root cause analysis, system upgrades, migrations, and optimization.
• Support secure SBC deployments using certificates, encryption, firewall traversal, and network security best practices.
• Create technical documentation, architecture diagrams, and operational procedures.
• Provide Level III/IV technical support and guidance for enterprise voice environments.

Required Qualifications

• 10+ years of experience supporting enterprise voice, VoIP, and Unified Communications environments.
• Strong hands-on experience with Ribbon Communications (Sonus) SBC platforms.
• Expertise in SIP signaling, SIP Trunking, RTP/SRTP, TLS, DNS, NAT traversal, and QoS.
• Experience implementing Microsoft Teams Direct Routing solutions.
• Experience integrating enterprise voice platforms including Cisco CUCM, Avaya Aura, and Mitel.
• Strong troubleshooting, analytical, communication, and documentation skills.

Preferred Qualifications

• Experience with Ribbon SBC Edge/Core and Ribbon Analytics.
• Knowledge of AudioCodes or Oracle SBC platforms.
• Experience supporting cloud and hybrid UC environments.
• Familiarity with Azure/AWS, firewalls, VPNs, load balancers, and enterprise network security.

Technical Skills

Ribbon SBC | Sonus SBC | Session Border Controller | Microsoft Teams | Teams Direct Routing | SIP | SIP Trunking | VoIP | RTP/SRTP | Enterprise Voice | Unified Communications | Cisco CUCM | Avaya Aura | Mitel | TLS | QoS | DNS | Network Troubleshooting

Why Join?

• Work remotely on enterprise-scale communication solutions.
• Collaborate with experienced technology teams on critical UC initiatives.
• Apply your expertise in next-generation voice and collaboration technologies.

Interested candidates are encouraged to apply and take the next step in their technology career with BizTech Fusion.