Senior Design Specialist – Firewall, Wireless Packet Core

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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 architectural design for security infrastructure protecting TELUS' Wireless Core Network, with focus on carrier-grade firewalls (Juniper SRX, Palo Alto Networks) across 4G EPC and 5G Service-Based Architecture (SBA) boundaries • Architect, deploy, and scale high-availability firewall solutions protecting critical core interfaces (Gi/SGi, N6, roaming, inter-carrier) and control/user plane functions in containerized environments (RedHat OpenShift) • Ensure firewall architectures adhere to 3GPP and GSMA standards; conduct proactive threat modeling and risk assessments for new 5G functions; support security audits and vulnerability remediation • Lead capacity planning, growth forecasting, and technology lifecycle management; develop vendor roadmaps and business cases for future security investments; manage technical relationships with firewall and core vendors • Partner with RAN, Transport, Policy, Signaling, IMS/Voice, and Virtualized Infrastructure teams to align firewall architectures, policies, and configurations with Wireless Core network functions (AMF/MME, SMF/SPGW-C, UPF/SPGW-U) • Develop CI/CD pipelines for firewall configuration deployment; create detailed Methods of Procedure (MoP) documents; develop KPI dashboards for performance monitoring and optimization • Analyze network performance, resolve complex security issues, and optimize architecture using protocol validation tools (Wireshark, PCAP) and vendor logging mechanisms

🎯 Requirements

• 10+ years of progressive experience in core network security and telecom engineering in carrier-grade environments • Expert-level experience designing, implementing, and troubleshooting Juniper SRX and Palo Alto Networks firewalls (bare metal and virtual) • Strong technical knowledge of 3G/4G/5G Packet Core network topology, control/user plane separation (CUPS), and Service-Based Architecture (SBA) • Deep understanding of mobile core protocol behavior (GTPv1/GTPv2, HTTP/2, Diameter, SCTP, Service-Based Interfaces) • Deep knowledge of telecom security standards: 3GPP security architecture (TS 33.501) and GSMA guidelines (FS.36/FS.37) • Master-level troubleshooting skills with network analysis tools (Wireshark, PCAP, protocol analyzers) • Proficiency deploying network security in containerization ecosystems (Docker, Kubernetes, RedHat OpenShift) • Experience with CI/CD automation pipelines and modern software development lifecycles (GitLab) • Bachelor's or Master's degree in Computer Science, Information Technology, Electrical Engineering, or related technical STEM field

🏖️ Benefits

• Comprehensive total rewards package highlighting competitive salary and bonus structures, minimum 3 weeks of vacation, and 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