Senior Design Specialist - Firewall & Wireless Packet Core

Description Join our team and what we’ll accomplish together The Wireless Voice and Data Core Team is responsible for end-to-end core network strategy, architecture, development and deployment, including service orchestration and automation. We design, develop, maintain, and support the Core Wireless Network and its services. Working as a team, we introduce cutting-edge technology and software to drive network orchestration and automation in the rapidly evolving 5G ecosystem, propelling TELUS’ digital transformation. We create previously impossible solutions to deliver unique and rich wireless experiences for our customers. These innovative solutions revolutionize connectivity, enhance quality of life, and spark global innovation by enabling cellular networks and expanding access to the digital world. You will play a pivotal role in redefining customer experiences by providing strategic guidance, managing change, and leveraging state-of-the-art security and AI to deliver reliable, cost-effective products. What You'll Do Design & Architecture: 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 Implementation & Rollout: 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) Security & Compliance: 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 Strategic Planning: 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 Cross-Functional Collaboration: 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) Automation & Optimization: Develop CI/CD pipelines for firewall configuration deployment; create detailed Methods of Procedure (MoP) documents; develop KPI dashboards for performance monitoring and optimization Troubleshooting & Analysis: Analyze network performance, resolve complex security issues, and optimize architecture using protocol validation tools (Wireshark, PCAP) and vendor logging mechanisms Qualifications What you bring 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 Great-to-haves Professional certifications in security domains or specific vendors (e.g., JNCIE-SEC, PCNSE) Experience securing infrastructure hosted within Public Cloud Native environments (AWS, GCP) Programming skills in Python, Ansible, or API-driven automation for programmatic firewall updates Knowledge of automated network slicing security policies and multi-tenancy isolation concepts Location: Any major Canadian city #Remote

Lead the architectural design and deployment of carrier-grade firewall solutions to protect the Wireless Core Network. Collaborate across functional teams to align security policies with 4G and 5G network functions while automating configurations via CI/CD pipelines.

Requires over 10 years of experience in core network security with expert-level proficiency in Juniper and Palo Alto firewalls. A degree in a STEM field and deep knowledge of 3GPP/GSMA security standards and containerization ecosystems are essential.

• KubernetesSouhaitée
• DockerSouhaitée

Relevées dans la description du poste. Confirmez les exigences importantes ci-dessus.

• Juniper SRX
• Palo Alto Networks
• 4G EPC
• 5G Service-Based Architecture
• RedHat OpenShift
• 3GPP Standards
• GSMA Guidelines
• Wireshark
• GTPv1/GTPv2
• HTTP/2
• Diameter
• SCTP
• Docker
• Kubernetes
• CI/CD Pipelines
• GitLab

• Technology
• Engineering
• Security & Safety
• Software
• Data & Analytics

Formation minimale

Baccalauréat

Expérience minimale

10+ ans

Postuler avant le

6 sept. 2026

Langue de l’offre

anglais

Heures de travail

40 heures par semaine

Niveau d’expérience

Mid-Senior level