Senior Design Specialist – Wireless Voice Core, IMS

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TELUS

WebsiteLinkedInAll Job Openings

10,000+ employees

Founded 1990

📡 Telecommunications

⚕️ Healthcare Insurance

🔐 Security

💰 $500M Post-IPO Debt on 2023-03

Telecommunications • Healthcare Insurance • Security

TELUS is a major Canadian telecommunications company that provides a wide range of services including mobile network plans, internet, and television services through platforms like PureFibre and Optik TV. The company offers an extensive array of mobile products such as phones, smartwatches, and tablets, alongside comprehensive internet and TV bundles. TELUS also focuses on additional services like smart home security and healthcare solutions, including virtual healthcare options. It operates across various regions in Canada and is committed to social impact initiatives, such as supporting charities through the TELUS Friendly Future Foundation. With a strong emphasis on connectivity and innovative solutions, TELUS is a key player in the telecommunications sector offering cutting-edge technology solutions to its customers.

📋 Description

• Lead architecture, design, and development of IMS and Wireless Voice Core systems (P/I/S-CSCF, SBC, TAS, ENUM, MRF/BGF) • Design and support voice services including VoLTE, VoWiFi, emergency services, roaming, and interconnect • Deploy and maintain scalable, carrier-grade IMS systems optimized for performance and cost-effectiveness • Create CI/CD pipelines to automate testing and deployment • Analyze network performance and optimize architecture; resolve complex technical issues • Develop Methods of Procedure (MoP) documentation for configurations and troubleshooting • Lead testing, validation, and capacity planning across deployments • Collaborate with RAN, Packet Core, Policy, Infrastructure, and Database teams on integrated solutions • Manage vendor relationships and influence solution roadmaps • Work with Red Hat OpenStack, OpenShift, AWS, and containerized environments • Develop KPI dashboards and monitor performance metrics • Participate actively in Agile teams and roadmap discussions

🎯 Requirements

• 10+ years in 3G/4G/5G Voice Core (architecture, design, implementation, operations) • Deep expertise in IMS architecture, interfaces (Gm, Cx, Dx, Sh, Rx, Rf, ISC, Mw), and call session control functions • Strong knowledge of signalling protocols: SIP, Diameter, H248, SS7, CAMEL, RTP/RTCP, GTP, and 5G protocols • 3GPP specifications and RFC standards expertise • Hands-on experience with multiple IMS vendors (Ericsson, Nokia); platform debugging and configuration • Strong understanding of Service-Based Architecture (SBA), LTE/5G Core, and subscriber data management (HSS/UDM) • Expertise in containerization (Docker, Kubernetes, OpenShift, AWS) and orchestration • Advanced troubleshooting with Netscout, Wireshark, and PCAP • TCP/IP networking fundamentals (TCP/UDP/IP/SCTP/Diameter) • CI/CD pipeline experience (GitLab, Agile methodologies) • Familiarity with data analytics tools (Splunk, BigQuery, Looker) • Bachelor's degree in Computer Science, IT, Electrical Engineering, or related STEM field

🏖️ Benefits

• Comprehensive total rewards package highlighting competitive salary and bonus structures • minimum 3 weeks of vacation • flexible benefits plan to meet the needs of you and your family • Flexibility to work in-office, virtually or a combination of both, based on the role's requirements • Generous company matched pension and share purchase programs • Opportunity to give back to communities in which we work, live and serve • Career growth and learning & development opportunities to develop your skills