18 hours ago

Senior Infrastructure Engineer (L3) – MSP & Cloud Infrastructure

Are you a senior Infrastructure Engineer who enjoys building, supporting, and improving complex client environments?

Sydney CBDInner West & Eastern Suburbs

Permanent / Full Time

Sydney | Hybrid | High-Performing Delivery Team 
 
Do you come from an MSP or fast-paced managed services background where you’ve worked across multiple clients, infrastructure projects, escalations, and cloud environments?
 
We are seeking a technically strong, client-focused Senior Infrastructure Engineer (L3) to join a high-performing delivery team supporting enterprise and mid-market environments across Australia.

This role is ideal for someone who enjoys being hands-on across infrastructure, cloud, virtualisation, networking, and Microsoft environments (Azure) – not just maintaining systems, but actively building and improving them.

The Opportunity
We’re partnering with Infotrust, a leading Australian provider of cyber-first technology and managed services, to find an experienced Senior Infrastructure Engineer (L3) to join their Sydney delivery team.
This is a senior technical role responsible for:

  • L3 escalations
  • Infrastructure deployments
  • Cloud and hybrid environments
  • Technical project delivery
  • Client-facing engineering support
  • Mentoring junior engineers

You’ll work across multiple client environments in a collaborative and highly technical MSP setting.

What You’ll Be Doing

  • Supporting and building complex infrastructure environments across multiple clients
  • Managing L3 escalations across server, cloud, networking, and virtualisation technologies
  • Delivering infrastructure projects, migrations, onboarding, and deployments
  • Supporting AWS and hybrid cloud environments
  • Working across Microsoft technologies including M365, Active Directory, Azure AD, and Windows Server
  • Troubleshooting complex infrastructure and connectivity issues
  • Supporting backup, disaster recovery, monitoring, and security platforms
  • Working directly with clients to provide clear technical guidance and solutions
  • Mentoring L1/L2 engineers and contributing to technical knowledge sharing

What You’ll Bring

  • 5+ years’ experience in a Senior Infrastructure Engineer, Systems Engineer, or L3 Support role
  • Strong MSP or managed services experience highly regarded
  • Strong hands-on infrastructure engineering capability
  • Experience across:
  • AWS cloud environments
  • Windows Server
  • Microsoft 365
  • Virtualisation (VMware/Hyper-V)
  • Networking fundamentals
  • Backup & DR technologies
  • Ability to troubleshoot and resolve complex technical issues end-to-end
  • Strong client-facing communication skills
  • Experience working across multiple concurrent environments and priorities
  • AWS certifications highly regarded

Highly Regarded

  • MSP experience
  • Azure experience
  • Microsoft certifications
  • Networking or security exposure
  • ITIL / ITSM experience
  • Experience with enterprise support tooling and monitoring platforms

Why Join?

  • High-performing and collaborative technical environment
  • Hybrid working flexibility
  • Exposure to enterprise-level infrastructure projects
  • Strong career progression pathways
  • Ongoing professional development and certification support
  • National organisation with cutting-edge cyber and managed services capability

Package

  • Competitive salary
  • Hybrid work environment
  • Professional development support
  • Employee benefits and career progression opportunities

Apply Now
If you’re a hands-on Infrastructure Engineer who enjoys solving complex technical challenges, working directly with clients, and building modern infrastructure environments, we’d love to hear from you.

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