Senior Network Engineer - Cloud Networks

• Design and architecture of public cloud network & security infrastructure patterns, including edge and on-premises network connectivity.
• Consultation with business and infrastructure stakeholders for new and changing cloud networks and infrastructure patterns.
• Closely working with peers across the network and infrastructure domains, internally within Westpac and also externally with vendors, to ensure cloud network patterns are in-line with architectural strategies and vendor best practices.
• Supporting and sometimes leading the troubleshooting of complex, multi-domain networking issues.
• Understanding at a technical level how cloud network patterns are delivered, maintained, and managed by Infrastructure-as-Code, with a view to continuously improve existing delivery pipelines and procedures.
• Championing, including conceiving and driving the implementation of service improvement initiatives to enhance public cloud networks operational support services.
• Provide input into the planning of future infrastructure requirements, including assessing existing infrastructure, conducting aspects of capacity planning, performance monitoring and tuning, and liaising with 3rd parties/external support vendors to ensure the stability and availability of technology infrastructure services to the business.
• Engage with relevant stakeholders to evaluate if infrastructure requirements can be defined in terms of existing or new services to ensure user requirements are understood and appropriately translated into infrastructure requirements.
• Provide input into the development of technology strategies, standards, and governance procedures to support the development of infrastructure services.
• Work to ensure that cloud network patterns (new and existing) adhere to Westpac roadmaps, blueprints, and standards.
• Performing detailed analysis of requirements to understand infrastructure feasibility, costing, effort estimates and support required from other infrastructure teams and vendors/partners.

• Relevant IT industry experience with five to ten years in a technical or architect role.
• Experience in a complex IT infrastructure environment incorporating planning, design, implementation, and operational management.
• Deep knowledge within the public cloud infrastructure domain and/or on-premises/edge network engineering across the below skill areas:

• Detailed understanding of integrating different public cloud platforms such as Azure or AWS.
• Both design & implementation level understanding of public cloud network infrastructure and services at a component level, including cloud networking concepts such as virtual networks, subnets, IP addressing, routing, security groups, load balancers, firewalls, and network security policies across multiple cloud platforms.
• Understanding of Layer-7 components including CDN, WAF, DDoS and TLS.
• Prior experience with infrastructure provisioning and/or automation platforms such as Terraform, Python, or Ansible.
• Public cloud architect/technical certifications such as AWS Solutions Architect, AWS Advanced Networking or Azure Network Engineer Associate.
• Cisco networking certifications such as CCNA or CCNP.
• Proficiency in TCP/IP networking, DNS, DHCP, VPN, firewalling & micro-segmentation technologies and network monitoring tools. Experience with software-defined networking overlays (SDN) is a plus, such as VXLAN EVPN or VMware NSX.
• Strong and intuitive analysis, problem solving and troubleshooting skills, including prior experience with diagnosing and resolving complex network issues, optimizing network performance, and conducting root cause analysis using available tooling capabilities.
• Thorough understanding and experience working in complex enterprise network environments.
• Understanding of the ITIL framework and service management - i.e. incident, change and problem management.
• Experience with project management and DevOps toolsets such as Jira.

Westpac