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Senior Systems Admin – MSSP (L3) | AU | WFH

Staff Domain

Role overview

Qualifications

  • Proven experience in a senior systems administrator or equivalent role
  • Experience managing complex network environments or working within an MSP or MSSP
  • Strong expertise across Microsoft technologies including Active Directory, Azure AD, Microsoft 365, and Windows Server
  • Advanced networking capability across routing, switching, firewalls, VPN, wireless, and SD-WAN

Responsibilities

  • Own and resolve complex technical issues end-to-end
  • Take full technical ownership of assigned client environments
  • Provide escalation support and guidance to junior engineers
  • Maintain and optimise Microsoft, cloud, and network infrastructure

About the company

Staff Domain logo

Staff Domain

Outsourcing & Offshoring

Staff Domain’s mission is to support global businesses through end-to-end offshore recruitment and operational management to enable cost savings and rapid growth.We offer staff acquisition and bespoke solutions to clients looking to expand, looking for resource support, or simply looking to support their bottom line.We cater to a variety of services to providing comprehensive, tailor-fitted approach for your business and local team needs. With Staff Domain, you are in control.We pride ourselves in presenting smooth end-to-end, customized offshoring experience and in providing employees the best career experience that will compliment clients'​ products and services in further promotion and market penetration to improve total satisfaction of customers and staff alike.Personalized service excellence is our core. Operational consistency is our key. Our culture is what sets us apart. Be one step ahead of the competition.

Company details

Company typeScaleup
IndustryOutsourcing & Offshoring
Company size201 - 500

Links

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Job description

Set-up and Location: WFH
Work Schedule: 9:00AM to 6:00PM (AEST) | 7:00AM to 4:00PM (PH)
Employment Type: Full-time

Ready to do work that actually excites you?

We are a boutique Managed Security Service Provider focused on delivering secure, well-architected environments for mid to enterprise clients. We operate with a strong engineering mindset, high standards, and a clear direction toward AI-driven operations and automation.
We are seeking a Senior Systems Administrator to take ownership of complex environments and operate with a high degree of autonomy within a modern, AI-first service model.

You will act as the senior escalation point across L2/L3, responsible for resolving complex issues and maintaining high-performing, secure environments. You will own technical outcomes across your assigned environments, make decisions independently, and drive improvements without relying on constant direction. The role is hands-on, with a focus on stability, optimisation, and long-term quality.
You will also gain exposure to AI-driven tooling and automation as part of our evolving service delivery model.
  • Own and resolve complex technical issues end-to-end
  • Take full technical ownership of assigned client environments
  • Provide escalation support and guidance to junior engineers
  • Maintain and optimise Microsoft, cloud, and network infrastructure
  • Drive improvements in security, performance, and standardisation
  • Contribute to automation and AI-driven operational enhancements
  • Assist with delivery of infrastructure and security projects as required

Requirements

What You Bring
We’re looking for someone who:
  • Proven experience in a senior systems administrator or equivalent role
  • Experience managing complex network environments or working within an MSP or MSSP
  • Strong expertise across Microsoft technologies including Active Directory, Azure AD, Microsoft 365, and Windows Server
  • Advanced networking capability across routing, switching, firewalls, VPN, wireless, and SD-WAN
  • Experience with virtualisation platforms including VMware vSphere and Hyper-V
  • Strong understanding of cybersecurity principles and operational practices
  • Hands-on experience with Azure and AWS environments
  • Experience with backup platforms such as Veeam and Metallic
  • Exposure to MSSQL or Oracle is advantageous


Benefits

Why You’ll Love Working Here
  • HMO, Dental, and Life Insurance for you and one free dependent from day one (with option to enroll more)
  • Paid Leaves: Birthday, Vacation, Medical, and Maternity (up to 6 Vacation Leaves convertible to cash on your anniversary)
  • Employee Engagement Activities: Year-End Party, Family Day, Team Building, and more
Let’s Talk
If you’re thinking “this sounds like me”—it probably is. Click apply. We can’t wait to meet you.

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MR

Marcus Rivera

Chief Revenue Officer

m.rivera@company.com
linkedin.com/in/marcusrivera
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