VoIP Engineer - SBC

Piper Companies is seeking a VoIP Engineer - SBC to join a federal program onsite at Scott Air Force Base, Illinois. This position involves advanced Session Border Controller (SBC) engineering, carrier‑grade VoIP integration, and policy management using PSX for secure and reliable telephony services. The ideal candidate will bring extensive SBC experience from a carrier or large‑scale enterprise environment and hold an active Secret Clearance.

• Act as an onsite engineering resource, delivering expert support for SBC and VoIP systems.
• Configure, implement, and maintain SBC platforms and PSX policy servers to enable SIP trunking, routing, and security.
• Perform carrier‑level SBC integration tasks, including SIP normalization, header manipulation, and policy enforcement.
• Troubleshoot complex SIP‑layer issues using packet captures, call flow analysis, and diagnostic tools.
• Assist with TDM‑to‑SIP migration projects, conduct lab testing for new SBC software/firmware, and validate interoperability.
• Collaborate with voice and network teams to ensure system reliability and compliance with federal standards.

• 5+ years of experience in VoIP engineering and SBC deployment, preferably in carrier or enterprise environments.
• Strong understanding of SIP protocol, including interpreting SIP messaging and resolving call flow issues.
• Hands‑on experience with SBC platforms and PSX policy server configuration.
• Familiarity with SIP trunking, routing policies, and carrier‑grade interconnect requirements.
• Proficiency with packet capture tools (e.g., Wireshark) for SIP‑layer troubleshooting.
• Must be U.S. work eligible and maintain an Active Secret Clearance.
• Knowledge of Cisco CUBE SBC, CUCM provisioning, and PSX systems.

• Salary Range: $100,000 – $115,000 (depending on experience).
• Benefits:
  Medical, Dental, Vision, 401K, PTO, Sick Leave, and Holidays.

This job opens for applications on 2/18/2026. Applications will be accepted for at least 30 days from the posting date.