Senior Design Specialist – Wireless Voice Core, IMS

TELUS

Senior Design Specialist in Wireless Voice Core & IMS at TELUS, responsible for architecture and development of IMS systems. Collaborating on solutions for network orchestration in the 5G ecosystem.

Posted 7/4/2026full-timeRemote • 🇨🇦 CanadaSenior💰 CA$100,000 - CA$150,000 per yearWebsite

Tech Stack

Tools & technologies

AWSBigQueryDockerKubernetesOpenShiftOpenStackSplunkTCP/IP

About the role

Key responsibilities & impact

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

What you’ll need

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

Comp & perks

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

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

IMS ArchitectureVoice Core ImplementationSignalling ProtocolsService-Based ArchitectureTCP/IP NetworkingCI/CD Pipeline ExperienceData Analytics ToolsKPI Dashboard DevelopmentPerformance OptimizationMethods of Procedure Documentation

Soft Skills

CollaborationLeadershipProblem-SolvingVendor Management