Ribbon Administrator/Ribbon Operations Engineer

Ribbon Administrator/Ribbon Operations Engineer

Location: London, 3 months rolling Inside IR35

We are looking for experienced Ribbon Administrators with strong operations and support skills to join one of our clients on a contract basis.

The ideal candidate will have hands-on experience managing and maintaining Ribbon (Sonus) SBC, PSX, and EMS platforms, ensuring high service availability and performance across our voice network infrastructure.

Key Responsibilities:

• Perform day-to-day administration and monitoring of Ribbon network elements (SBCs, PSX, EMS).

• Conduct health checks, manage alarms, troubleshoot faults, and ensure network stability.

• Implement configuration changes, software upgrades, and capacity expansions.

• Manage SIP trunk configurations, routing, and policy rules on Ribbon systems.

• Work with engineering and project teams for new service deployments and integrations.

• Coordinate with Ribbon TAC and internal teams for incident resolution and root cause analysis.

• Maintain accurate documentation of configurations, procedures, and change logs.

• Participate in a 24x7 on-call rotation for critical incidents and planned maintenance.

Requirements:

• Hands-on experience with Ribbon SBC 5k/7k/SWe, PSX, and EMS systems.

• Strong understanding of SIP, RTP, VoIP, and routing policies.

• Familiarity with Linux-based systems and basic Scripting (bash/Python preferred).

• Experience in voice core operations, SIP trunking, or carrier InterconnecT environments.

• Ability to troubleshoot complex signalling and media issues.

• Excellent communication, documentation, and problem-solving skills.

Preferred Qualifications:

• Ribbon Certified Support Engineer (RCSE) or equivalent certification.

• Knowledge of IMS, VoLTE, or IP voice core architectures.

• Experience with monitoring tools (eg, Splunk, SolarWinds, Nagios).

• ITIL certification is a plus.