Senior Design Specialist - Firewall & Wireless Packet Core

Location: Req ID: 55201 Jobs by Category: Technology Solutions Job Function: Engineering & Development Status: Full Time Schedule: Regular 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 Salary Range: $100,000-$150,000 Performance Bonus or Sales Incentive Plan: 15% Actual total compensation will be determined based on factors such as knowledge, skills, performance and experience. We encourage all qualified candidates to apply, even if the posted salary range doesn't match your expectations. We're open to discussing competitive compensation packages tailored to your experience level and expertise. TELUS offers rewarding benefits, which may vary per job function, such as: 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 And much more … Job Type: This is for a current vacancy A bit about us We’re a people-focused, customer-first, purpose-driven team who works together every day to innovate and do good. We improve lives through our technology solutions and foster a culture of innovation that empowers team members to solve complex problems and create remarkable human outcomes in a digital world. You’ll find our engaging, high-performance culture personally fulfilling, professionally challenging, and financially rewarding. We’re committed to diversity and equitable access to employment opportunities based on ability. Your unique contributions and talents will be valued and respected here. When you join our team, you’re helping us make the future friendly. Note for Quebec candidates: if knowledge of English is required for this position, it is because the team member will be asked, on a regular basis, to interact in English with external or internal parties or to use English applications or software as part of their tasks. Technology Solutions We’re into seeing where technology can take us, so if you have ever imagined what the future of supply chain management, cybersecurity, the cloud and Internet of Things will look like, we want you to be part of the team that makes it happen. We are honoured to be recognized 5G TELUS’s fastest network. 5G enables a superior experience with fast downloads and richer multimedia applications 6 Innovation centres across Canada that bring our team members together with customers, partners, start ups, universities, hospitals and fellow colleagues to tackle some of the biggest technological hurdles Canada will face in the near future. 1 Million active users logging into My TELUS per month (consumer mobility). Accessibility TELUS is proud to foster an inclusive culture that embraces diversity. We are committed to fair employment practices and all qualified applicants will receive consideration for employment. We offer accommodation for applicants with disabilities, as required, during the recruitment process.