Senior Systems Administrator (M365)

Location: Hybrid in Ortigas, Philippines; work schedule is 9:00 AM–6:00 PM AEST / 7:00 AM–4:00 PM Philippines time.

Company

Boutique managed security service provider delivering secure, well-architected environments for mid-market and enterprise clients, with an engineering-led and AI-driven operations model.

What you will do

• Own and resolve complex technical issues end-to-end as the senior L2/L3 escalation point.
• Take technical ownership of assigned client environments and make independent operational decisions.
• Provide escalation support and guidance to junior engineers.
• Maintain and optimise Microsoft, cloud, network, and security infrastructure.
• Drive improvements in security, performance, standardisation, and long-term environment quality.
• Contribute to automation, AI-driven operational enhancements, and infrastructure and security projects.

Requirements

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

Nice to have

• Exposure to MSSQL or Oracle.

Culture & Benefits

• Hybrid work arrangement in Ortigas with a fixed Philippines-based schedule.
• HMO, dental, and life insurance for the employee and one free dependent from day one, with the option to enrol additional dependents.
• Paid birthday, vacation, medical, and maternity leave; up to six vacation leaves may be converted to cash on anniversary.
• Employee engagement activities including year-end parties, Family Day, and team building.