Senior SBC & SIP Engineer (VoIP, 24/7 On-Call)

SiriusXM Radio, Inc.; Houston (TX); On-site; USD 134,000 - 163,000; Full time

Job summary

SiriusXM is seeking a Senior SBC Engineer to ensure stability, security, and high availability of voice infrastructure supporting emergency calls. You will lead design, configuration, and operation of Oracle SBCs and OCCAS, drive cross-functional collaboration, and oversee incident resolution.

The role emphasizes 7+ years in VoIP/SIP with Oracle SBC experience, plus knowledge of SIP, TLS/SRTP, and security practices, with on-call responsibilities included.

Qualifications

• 7+ years in VoIP/SIP network engineering with 5+ years Oracle SBC experience.
• 2+ years with OCCAS (Oracle Communications Converged Application Server).
• Expert SIP, SDP, RTP; SIP header manipulation (HMR).
• Experience supporting call centers or emergency services environments.

Responsibilities

• Provide technical leadership for emergency call center voice infrastructure.
• Administer, configure, and maintain Oracle SBCs and OCCAS.
• Design and optimize SIP routing and header manipulation for multi-carrier interoperability.
• Develop OCCAS SIP servlets and call control logic for emergencies.
• Manage daily tickets and ensure SLA compliance and documentation.
• Troubleshoot SIP signaling and media with Wireshark and Oracle tools.
• Oversee SBC clusters, upgrades, capacity, and redundancy.
• Handle TLS/SRTP and certificate management for SBC security.
• Collaborate with Network Ops, Security, App Dev, and Contact Center.

Skills

VoIP/SIP engineering

SBC administration

SIP routing

OCCAS knowledge

SIP troubleshooting

Network security

Documentation

Collaboration

TLS/SRTP

Education

Bachelor's degree in CS/Telecommunications/Electrical Eng

Tools

Wireshark

sngrep

Oracle diagnostic tools

Job description

SiriusXM is seeking a Senior SBC Engineer to ensure stability, security, and high availability of voice infrastructure supporting emergency calls. You will lead design, configuration, and operation of Oracle SBCs and OCCAS, drive cross-functional collaboration, and oversee incident resolution.

The role emphasizes 7+ years in VoIP/SIP with Oracle SBC experience, plus knowledge of SIP, TLS/SRTP, and security practices, with on-call responsibilities included.