[Hiring] Senior Systems Administrator @Staff Domain Inc.

Role Description

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.

• Act as the senior escalation point across L2/L3, responsible for resolving complex issues and maintaining high-performing, secure environments.
• Own technical outcomes across your assigned environments, make decisions independently, and drive improvements without relying on constant direction.
• Focus on stability, optimisation, and long-term quality.
• 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.

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.
• 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

• 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.

Company Description

We are a boutique Managed Security Service Provider focused on delivering secure, well-architected environments for mid to enterprise clients.