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Senior Infrastructure Designer

Australia, Richmond · Job Posted January 05, 2026
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Job Description

Help us deliver a better tomorrow. Australia Post is delivering for all Australians. From the vehicles that we drive, to the small businesses that make our communities thrive. We’re delivering for the environment, for our communities, for our customers and for our people. We’re moving forward and we want you to come along for the ride. Help us deliver like never before. We’re hiring for a Senior Infrastructure Designer. Reporting to the Manager, Infrastructure Design and Delivery, you’ll play a pivotal role in shaping Australia Post’s Enterprise Enablement network and infrastructure programs. In this position, you’ll design, implement, maintain and optimise secure, scalable and high‑performance infrastructure solutions across our corporate, retail and logistics environments. This is a unique opportunity to set design standards and best practices, ensuring every solution aligns with enterprise architecture and supports strategic initiatives such as ALM and our cyber security uplift, enabling efficient, future‑ready service delivery nationwide. This is a unique opportunity to shape enterprise-wide infrastructure design standards, deliver secure and scalable solutions, and influence strategic programs that underpin Australia Post’s future technology landscape.

Job Responsibility

  • Design and document Infrastructure solutions for new and existing infrastructure, cloud and security projects
  • Support leadership team to implement and maintain design centre of excellence (CoE)
  • Provide technical guidance to Infrastructure engineers to successfully deliver the project outcomes
  • Participate and lead Infrastructure changes in the CAB and TRA
  • Collaborate with Infrastructure and Cloud Designers, Delivery Leads, and external vendors to validate technical feasibility
  • Develop high-level and low-level designs (HLD/LLD) for On-Prem infrastructure (PaaS, IaaS) and Multi-cloud environments (SaaS)
  • Ensure compliance with security policies
  • Support estimation workshops and provide input into NIE delivery planning to support business case development

Requirements

  • Strong experience in enterprise infrastructure design
  • Experience with technologies like Cisco, Palo Alto, Meraki, F5 and Fortinet
  • Skills in virtualisation and cloud platforms (Azure, AWS, GCP)
  • Solid understanding of architecture principles and best practices
  • Experience designing resilient, high-availability solutions
  • Background in modern technology stacks, change management and Agile delivery
  • Significant experience in enterprise network design
  • Strong understanding of MAC binding, VLANs, IP routing, and network segmentation
  • Strong overall business acumen and analytical skills
  • Ability to quickly grasp business issues and understand business strategy

What we offer

  • Career Development
  • Work-Life Balance with flexible working arrangements
  • Employee Wellbeing resources and support

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