Job Title Telephony Engineer Created 16-Sep-2024 Department SRE Revised                                                                                     Job Summary As a Telephony Engineer, you will join our SRE team to play a pivotal role in supporting our growing voice infrastructure and SMS/Messaging services. You will leverage your expertise in SBC technologies, Linux deployment, and SIP protocols to ensure the reliability, performance, and quality of our voice services.                                                                                                                                     Key Duties & Responsibilities 1 SBC Administration: Configure, manage, and maintain SBC devices (e.g., Metaswitch Perimeta, Sonus). 2 Linux Deployment: Deploy and manage Linux-based voice platforms and applications. 3 Troubleshooting: Diagnose and resolve voice network issues, including SIP signaling, RTP media, and SBC-related problems. 4 Integration: Integrate voice systems with other applications and platforms. 5 Performance Optimization: Optimize voice network performance for quality and efficiency, focusing on call quality metrics. 6 Operation & Support: Provide support for production environments related to voice services. 7 Incident Resolution: Deliver timely and high-quality incident resolution, focusing on root cause analysis, prevention, and ticket elimination. 8 Business Continuity: Participate in site-to-site quarterly/annual failover and validation exercises, as well as tabletop drills for disaster recovery planning. 9 Incident Handling: Conduct fault isolation, fault repair, and root cause analysis.                                                                                                                                                                                                                                                                                 Qualifications/Skills/Abilities Minimum Requirements Formal Education Bachelor’s degree in computer science, Information Technology, or a related field (or equivalent experience). Experience (type & duration) 5+ years of experience in telephony engineering. Strong knowledge of SBC technologies and protocols Proficiency in Linux administration. Skills Software Management: Extensive experience in software patch management and deployment using Jenkins CI/CD. VOIP Expertise: Deep knowledge of VOIP protocols (SIP, WebRTC, RTP, RTCP, HTTPS, VOIP, CTI, TLS1.3) and certificate management. Deep understanding of SIP protocol and the ability to understand, pull, and fix issues related to call quality metrics. Systems Engineering: 3+ years of hands-on experience in systems engineering, infrastructure operations, or site reliability engineering. Automation: Proficiency in scripting and automation using languages like Python, Bash, or PowerShell. Networking and Security: Solid understanding of networking principles and security best practices. Problem-Solving: Excellent problem-solving and troubleshooting skills, capable of diagnosing and resolving complex technical issues under pressure. Accreditation/certifications/licenses Relevant certifications (e.g., RHCE, RHCSA) are a plus. Travel Requirements         . Qualifications/Skills/Abilities Preferred Formal Education   Experience (type & duration) Experience with specific SBC technologies or platforms. Knowledge of network security best practices. Skills   Accreditation/certifications/licenses   Travel Requirements