Senior Cloud Infrastructure & Security Engineer

We are seeking an experienced Senior Cloud Infrastructure & Security Engineer to take a leading technical role across our cloud, infrastructure, cybersecurity and enterprise networking environments. This is a hands‑on senior engineering position for an experienced technology professional who can operate across Azure, AWS and Google Cloud Platform (GCP) while maintaining a strong focus on security, resilience, automation and enterprise networking. The successful candidate will be responsible for designing, implementing, securing and continuously improving Pegasustek's technology environment. You will work across cloud infrastructure, cybersecurity, networking, identity, infrastructure automation and operational resilience, acting as a senior technical authority and trusted advisor to management and the wider business.

Key responsibilities

Design, implement and maintain secure, scalable and highly available Microsoft Azure, Amazon Web Services (AWS) and Google Cloud Platform (GCP) environments

Develop multi-cloud and hybrid-cloud architecture aligned with business, security, performance and availability requirements

Design and implement cloud landing zones, subscriptions/accounts/projects, resource governance and security guardrails

Manage cloud networking including VNets/VPCs, subnets, routing, private connectivity, VPN, firewalls, load balancing and DNS

Lead implementation of secure‑by‑design principles across Azure, AWS and GCP

Design and maintain cloud security architecture incorporating Zero Trust, least privilege, identity security and defence‑in‑depth

Implement and manage Palo Alto Networks Prisma Cloud for Cloud Security Posture Management (CSPM), cloud workload protection and cloud security visibility

Design, implement and support enterprise network architecture across cloud, datacentre, office and project environments

Develop Infrastructure as Code using technologies such as Terraform, Bicep, CloudFormation or equivalent





Act as a senior escalation point for complex infrastructure, cloud and cybersecurity incidents

About you

Extensive senior-level experience in cloud infrastructure, cybersecurity and enterprise networking

Demonstrated experience designing and operating enterprise cloud environments

Strong hands‑on experience across Azure and AWS

Practical experience with GCP or equivalent multi‑cloud environments

Strong understanding of cloud security architecture and cybersecurity principles

Strong enterprise networking background

Excellent troubleshooting and problem‑solving capabilities

Ability to communicate complex technical concepts to technical and non‑technical stakeholders

Approximately 8–12+ years of relevant experience across infrastructure, cloud, networking and cybersecurity

About us

Pegasustek is an innovative Australian construction and architectural fabrication company with a proud history spanning approximately four decades, delivering highly customised and technically complex architectural and infrastructure projects. Our work combines construction expertise, advanced engineering, digital design and innovative manufacturing techniques to create distinctive architectural structures and façades. Our portfolio includes highly customised projects and architectural features associated with major international brands and destinations, including Disneyland, Universal Studios and Louis Vuitton, alongside bespoke commercial, residential and architectural projects. Pegasustek's approach combines traditional craftsmanship with advanced 3D design, prefabrication and contemporary construction technologies.

$230,000 base salary + bonus

Senior technical ownership and autonomy

Opportunity to shape a multi‑cloud technology environment

Exposure to Azure, AWS and GCP

Enterprise cybersecurity and Palo Alto Networks technologies

Cisco and Juniper networking environments

Direct engagement with senior management

Opportunity to influence technology strategy and architecture

Professional development and certification opportunities

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📌 Senior Cloud Infrastructure & Security Engineer (Sydney)
🏢 Pegasustek Group
📍 Sydney