Senior SBC Oracle Engineer at Absa Group Limited (Absa)

Job Summary

• Work as part of an integrated (run & build) tribe to provide enterprise wide application support across multiple stakeholder groups (in high complexity environments) by maintaining & optimizing enterprise-grade applications (tech products & services) & building capability in others to do the same.

Job Description

Job Summary:

• The Unified Communications team is seeking a highly skilled Senior SBC Engineer to join our dynamic team. The successful candidate will serve as the Subject Matter Expert (SME) for SBC Oracle, providing technical guidance and support to junior engineers. The ideal candidate will have a strong background in Voice Engineering, Network Engineering and most importantly SBC Oracle technologies, excellent problem-solving skills, and the ability to work collaboratively in a fast-paced environment. If you possess strong technical expertise in SBC and are passionate about mentoring a team, we want to hear from you.

Key responsibilities:

SBC deployment & Configuration:

• Install, configure, and optimize SBCs to ensure seamless voice and media traffic across networks.
• Network Integration:
• Integrate SBCs with VoIP systems, PSTN gateways, and cloud platforms while maintain compatibility and performance.
• Security Enforcement:
• Implement and monitor security policies, including firewall rules, encryption, and protection against threats.

Traffic management:

• Manage call routing, load balancing, and QoS to ensure high quality voice and video.

Troubleshooting:

• Diagnose and resolve issues related to SIP signaling, media streams and network connectivity using diagnostics tools.

Monitoring and Maintenance:

• Continuously monitor SBC performance, apply updates, and perform routine maintenance to minimize downtime.

Interoperability Testing:

• Validate SBC functionality with third-party systems, carries, and endpoints to ensure smooth operation.

Capacity Planning:

• Assess and scale SBC infrastructure to handle current and future traffic demands.

Documentation:

• Create and maintain detailed records of configurations, procedures, and incident resolutions.

Collaboration:

• Work with network engineers, telephony teams, and vendors to support projects and complex issues.

Technical Skills:

VoIP Protocols:

• Deep knowledge of SIP (Session Initiation Protocol) , RTP (Real-time Transport Protocol), and SDP (Session Description Protocol).

Networking:

• Proficiency in TCP/IP, UDP, DNS, NAT traversal, VLANs, and routing protocols (e.g., OSPF, BGP).

SBC Platforms:

• Expertise with specific SBC systems like, Ribbon Communications, Cisco Cube, Audio Codes and Oracle Acme Packet (as Primary).

Security Technologies:

• Familiarity with TLS, SRTP, IPsec, and firewall configurations for securing voice traffic.

Troubleshooting tools:

• Advanced skills with packet analyzers (e.g., Wireshark, tcpdump) and SIP debugging tools.

Virtualization:

• Experience with Virtual environments (e.g., VMware, cloud platforms (AWS, Azure).

QoS Implementation:

• Ability to configure and optimize Quality of Service settings for voice and video prioritization.

Telephony standards:

• Understanding of legacy protocols, (e.g., H323, ISDN) and modern standards (e.g., WebRTC).

Experience Required:

• Minimum 10 years in voice engineering, telephony roles mainly focused on SBC competencies.
• Technical in VoIP & SIP.
• Direct routing & Operator connect.
• High-level SBC configuration & management.
• High-level troubleshooting & diagnostics.
• Security & Network knowledge.
• Virtualization & Cloud Exposure.
• Vendor Specific knowledge.

Education

• Bachelor's Degree: Information Technology