Senior Voice VoIP Engineer

Job Title: Senior Voice / VoIP Engineer
Locations: Philadelphia PA Mount Laurel NJ Denver CO
Type: 12-Month Contract (Extension Possible)

Position Summary

Seeking a Senior Voice/VoIP Engineer with expert-level SIP knowledge to design support and troubleshoot large-scale enterprise voice platforms. This role serves as a Subject Matter Expert (SME) for call center and IVR environments translating business requirements into scalable secure and high-availability voice architectures across multi-region infrastructure.

Key Responsibilities

• Design architect and support SIP-based VoIP solutions (call center and IVR focused).
• Troubleshoot SIP signaling RTP/media flow and cross-platform voice issues.
• Convert business requirements into detailed technical designs and integration plans.
• Provide Tier 3/Tier 4 escalation support for critical voice outages.
• Partner with engineering teams during design certification and deployment phases.
• Perform Linux CLI-based diagnostics and server-level performance analysis.
• Develop basic automation scripts (Bash Python) for operational efficiency.
• Monitor voice platform performance to ensure uptime call quality and SLA adherence.
• Maintain technical documentation including call flows configurations and DR procedures.
• Manage SIP trunking and carrier integrations with service providers.
• Ensure compliance with voice security standards and engineering best practices.

Required Qualifications

• Expert knowledge of SIP protocols SIP signaling and RTP media streams.
• Strong Linux administration and CLI troubleshooting skills.
• Experience with PBX systems SIP trunking and carrier-grade voice environments.
• Systems-level troubleshooting across VoIP networking and server platforms.
• Basic scripting experience (Bash Python or similar).

Preferred Qualifications

• Experience with Ribbon or AudioCodes SBCs (Oracle/Acme Packet or similar).
• Familiarity with BroadWorks or carrier-grade voice systems.
• Experience with Cisco Voice and Unified Communications (CUCM CUBE etc.).
• Background supporting multi-region or global voice deployments.