Level 4 Engineer (Senior Systems Engineer)

About the Role
We are seeking an experienced Level 4 Senior Systems Engineer to provide technical leadership, advanced escalation support, solution architecture, and complex project delivery across Microsoft, cloud, networking, and security environments.
This role is suited to a commercially minded senior engineer who can solve complex technical challenges, lead infrastructure and cloud initiatives, mentor technical teams, and build trusted relationships with clients. You will operate as a senior technical authority while driving improvements across customer environments and service delivery.
About the Client
You will be working with an established managed services provider supporting businesses across Australia with managed IT services, cloud solutions, technology procurement, and software licensing. The organisation places a strong emphasis on quality, accountability, trusted technical partnerships, and delivering strong outcomes for its clients.
Ideal Profile
Technical Expertise
10+ years of experience in the IT industry, including 5+ years within an MSP environment supporting multiple customers
Advanced Microsoft 365 administration and architecture experience
Strong hands-on expertise across Microsoft Entra ID, Intune, Azure, Microsoft operating systems, and cloud infrastructure
Advanced networking and firewall administration capabilities
Experience with enterprise Wi-Fi, network infrastructure, VPNs, routing, switching, VLANs, WAN, and internet connectivity
Strong understanding of endpoint security, backup and disaster recovery, and cybersecurity principles
Experience with PowerShell scripting and automation
Proven ability to design, troubleshoot, and improve complex infrastructure environments
Security & Cloud
Experience implementing security controls and remediation strategies
Understanding of security frameworks and compliance requirements, including Essential Eight, CIS Controls, NIST, and cyber insurance requirements
Experience with security monitoring, incident response, and security investigations
Microsoft Sentinel, SIEM, Microsoft Defender, Azure Virtual Desktop, and Cloudflare experience is highly desirable
Platforms & Technologies
Ubiquiti UniFi and Sophos Firewall experience is advantageous
Familiarity with Microsoft Teams Phone is beneficial
Experience with ConnectWise Manage, ConnectWise Automate, IT Glue/IT Boost, and ITIL is desirable
Leadership & Client Engagement
Proven experience leading technical initiatives and mentoring engineers
Strong client-facing and stakeholder management capabilities
Ability to communicate technical concepts and solutions to both technical and non-technical audiences
Strong analytical and problem-solving skills
High attention to detail with a proactive, accountable, and outcome-focused approach
Strong organisational skills and the ability to work independently and make sound technical decisions
Commitment to continuous learning and professional development
Certifications
Preferred certifications include:
Microsoft Certified: Enterprise Administrator Expert
Microsoft Certified: Azure Solutions Architect Expert
Microsoft Certified: Cybersecurity Architect Expert
Microsoft Certified: Security Operations Analyst
CCNA, CCNP, or equivalent networking certification
CISSP, CISM, CEH, or equivalent cybersecurity certification
ITIL Foundation or higher
Responsibilities
Technical Leadership & Escalation
Act as the highest level of technical escalation for Level 1–3 engineers
Lead root cause analysis for complex infrastructure and cloud issues
Mentor and guide technical team members
Develop and maintain technical standards, procedures, and best practices
Review and approve technical solutions and project designs
Microsoft 365 & Cloud Solutions
Design, implement, and optimise Microsoft 365 environments
Lead projects across Microsoft 365, Entra ID, Intune, security, SharePoint, Teams Phone, and Azure
Implement and improve Zero Trust security frameworks
Drive automation initiatives using PowerShell and Power Platform
Infrastructure & Networking
Design and support enterprise-grade networking environments
Configure and troubleshoot firewalls, routing, switching, VLANs, VPNs, network security, WAN, and internet connectivity
Lead architecture reviews and network improvement initiatives
Provide advanced support across Ubiquiti, Sophos, and other network technologies
Security & Compliance
Conduct security reviews and vulnerability assessments
Design and implement cybersecurity controls and remediation plans
Support compliance with relevant security frameworks and cyber insurance requirements
Assist with incident response and security investigations
Implement and manage SIEM and security monitoring solutions
Project Delivery & Solution Architecture
Lead the design and delivery of complex infrastructure and cloud projects
Participate in solution scoping and pre-sales activities
Work with management to identify technology opportunities and improvements
Ensure projects are delivered to scope and a high standard
Contribute to solution architecture and strategic technology planning
Documentation & Operational Excellence
Maintain accurate technical documentation, diagrams, as-builts, knowledge articles, and SOPs
Maintain accurate project updates and service records
Drive continual service improvement across the business
Identify opportunities to improve service quality, operational efficiency, security, and technical standards
Client Engagement
Act as a trusted technical advisor to clients
Participate in technical strategy meetings and client reviews
Translate technical solutions and concepts into clear business outcomes
Maintain a high standard of customer service and professional conduct
How we take care of our team
💰 Get paid in Australian Dollars
🏥 Medical insurance from day one for you + spouse (or parents if unmarried)
🩺 Generous OPD coverage from doctor visits to all your medical needs
🏡 Home office setup allowance to build your ideal workspace
🌐 Internet allowance to keep you connected
💪 Gym & wellness allowance to stay fit and balanced
🎉 Work hard, play hard – regular team events & engagement activities
🧠 Diji Assist – Mental health & counseling support when you need it
📚 We invest in you – reimbursement for industry certifications
🗣️ Open-door culture – your ideas and feedback always matter
🌍 Flexible work – home or office, wherever you do your best work
🏆 Rewards & recognition that actually recognize you
🥳 Great christmas & financial year-end parties to unwind with your loved ones