Sr. Network Security Engineer

Overview of roleWestJet is seeking a Senior Network Security Engineer to join our Technology organization and play a critical role in strengthening and evolving our enterprise network security posture. The role operates within the Network Services Team, working in close partnership with Cybersecurity, Platform, and Product teams across the organization.The successful candidate will bring deep expertise in network security architecture, engineering, and operations, with the ability to plan, design, implement, optimize, and support modern network security platforms in a fast-paced, highly critical environment. This individual will translate business and security objectives into scalable, resilient, and secure network security solutions aligned with industry best practices and zero trust principles.As a senior technical contributor, the Sr Network Security Engineer will lead medium-to-large initiatives, provide technical direction and advisory support to stakeholders, and continuously improve security controls, tooling, and operational practices. This role requires strong analytical thinking, excellent collaboration skills, and a passion for automation, innovation, and security-by-design.Design, implement, operate and continuously improve WestJet’s network security infrastructure across on-premises, data center, and cloud environments.Lead the deployment, lifecycle management, and optimization of network security technologies, including:VMware NSX-T (Must have)Palo Alto NGFW and Prisma AccessCorelight IDS and related detection platformsDrive enterprise firewall initiatives, including implementation of new firewall technologies and strategic enhancement of existing platforms.Lead and deliver medium to large-scale initiatives related to network security platforms and associated key security controls.Collaborate closely with Cybersecurity, Network, Platform, and Product teams to embed security best practices into new designs and initiatives.Act as a trust technical advisor to technology and business stakeholders on network security, architecture, risks, and best practices.Optimize network security policies, rulesets, and configurations to improve security posture, performance, and operational efficiency.Automate and streamline network security operations where applicable.Develop and maintain high-quality technical documentation, standards, procedures, and network/security diagrams.Participate in a 24x7 on-call rotation, including evenings and weekends, to support critical security infrastructure.Ensure solutions meet requirements for security, resiliency, scalability, performance, and compliance.Contribute to continuous improvement of operational processes, incident response readiness, and platform reliability.Experience and QualificationsBachelor’s degree in Computer Science, Information Technology, or a related discipline, or equivalent practical experience.8+ years of experience in network security engineering roles involving the design, implementation, and support of large-scale enterprise or data center environments.Deep, hands-on knowledge of network security principles, protocols, architectures, and technologies.Strong experience with industry-leading network security platforms, including:Next-Generation Firewalls (NGFW)Network segmentation and micro-segmentation (e.g., NSX-T)Zero Trust Security ArchitectureSoftware-Defined Perimeter conceptsExperience with cloud security engineering, particularly within Azure environments, is a strong asset.Demonstrated expertise in platform configuration, policy design, tuning, optimization, and lifecycle maintenance.Strong understanding of security-by-design methodologies and secure integration patterns across network and platform services.Solid knowledge of the network threat landscape and security controls used to mitigate modern threats.Experience automating network and security infrastructure provisioning and management. (e.g., scripting, APIs, IaC tools)Strong understanding of information security risk management, regulatory requirements, and industry best practices, including:PCI DSSExcellent communication skills with the ability to explain complex technical concepts to both technical and non-technical stakeholders.Certifications considered strong assets:Palo Alto certificationsVMware NSX certificationsCloud security certifications (Azure Security Engineer or equivalent)The benefits of being a WestJetterWestJet provides all WestJetters with a competitive total rewards package. On top of that, we offer:A fun and friendly culture with colleagues who work together to winTravel privileges for you and your family, effective from your start dateSavings and Benefit programs that are flexible to meet your specific needsThink we are a fit? Apply nowAbout WestJet Group Of CompaniesWestJet took to the skies in 1996 with just over 200 employees and three aircraft operating service to five destinations. Since then, WestJet has pioneered low-cost travel in Canada, cutting airfares in half, and increasing the flying population in Canada by more than 50 per cent. Following integration with Sunwing in 2025, more than 14,000 WestJetters support nearly 200 aircraft and connect guests to more than 100 destinations across North America, Central America, the Caribbean, Europe and Asia.As a major Canadian employer that includes WestJet Airlines, Sunwing Vacations Group and WestJet Cargo, the WestJet Group is Canada’s leading low-cost airline and largest vacation provider, with a united purpose of providing affordable and accessible air and vacation travel to Canadians.Our Safety PromiseAt WestJet, the safety and security of our people and our guests is a core value and at the heart of what we do. As safety and security is a shared responsibility, it is expected that you will use safe work practices to ensure your well-being and the safety of others.WestJet recognizes that the use of Alcohol and Drugs can adversely impact a safe work environment and the well-being of others including guests, suppliers and the public, as well as place WestJet's operations at risk. All roles that are identified as safety sensitive are required to pass a Pre-Employment Alcohol and Drug Test as per WestJet's Alcohol and Drug Policy.Our Commitment to Diversity and InclusionWe embrace what makes us each unique, and what makes us uniquely WestJet. We welcome diverse skills, experiences, and backgrounds, and if you're passionate about this role, we encourage you to apply - even if you don't meet every qualification listed. WestJet is committed to inclusiveness, equity, and accessibility throughout the selection process. If you require accommodation at any stage, please contact our Talent Acquisition team at talent@westjet.com.We value the time and effort you put into your application. Our recruitment process is highly competitive, and while every applicant will receive communication regarding their application status, only those selected to move forward will be contacted with next steps. We encourage you to explore future opportunities with us if this role isn't the right fit at this time.For more information about everything WestJet, please visit WestJet.com #J-18808-Ljbffr