Senior System Admin — Onsite, Growth & Flexible Hours

MicroSourcing; Metro Manila; On-site; PHP 1,000,000 - 2,000,000; Full time

Benefits offered by this job

Healthcare coverage from day one

Dependent coverage for healthcare

Paid time-off with cash conversion

Group life insurance

Performance bonuses

Job summary

MicroSourcing is seeking a Senior System Administrator in Ortigas, Pasig, onsite three days a week, with strong Microsoft 365/Azure and networking experience. You will lead complex IT support, manage cloud environments, and drive security and continuity initiatives.

Healthcare coverage on day one, paid time-off with cash conversion, group life insurance, and performance bonuses accompany a collaborative, inclusive culture and opportunities for growth.

Qualifications

• Minimum 7 years of relevant experience with senior or lead responsibility in an enterprise setting.
• Strong experience administering Microsoft 365 and Azure, with knowledge of AWS or another major cloud.
• Windows Server administration experience.
• Proven enterprise networking experience (firewalls, routing, switching, wireless).
• Hands-on experience with AWS, Google Cloud, or other major cloud providers in a hybrid environment.
• Excellent communication skills and ability to explain technical topics to non-technical stakeholders.
• Willingness to work onsite in Ortigas, Pasig, three days per week aligned with Australian hours; after-hours support as needed.

Responsibilities

• Provide senior-level technical support and act as escalation point for complex IT issues.
• Administer and maintain Microsoft 365, Azure, Windows Server, and other cloud environments.
• Manage user access, devices, configurations, onboarding/offboarding, patching, backups, and monitoring.
• Maintain enterprise network infrastructure including firewalls, routers, switches, and wireless devices.
• Lead system upgrades, cloud migrations, and infrastructure improvement projects.
• Implement and maintain IT security controls (MFA, VPN, endpoint security, vulnerability management).
• Support ISO 27001 compliance and ACSC Essential Eight implementation.
• Coordinate with vendors for IT support, warranties, licensing, and infrastructure needs.
• Provide technical leadership and mentoring to junior IT staff; oversee helpdesk and sysadmin tasks.
• Maintain system documentation, knowledge bases, asset registers, and SOPs.
• Collaborate with IT applications and data teams on web apps, AI tools, dashboards, and other tech.
• Provide after-hours and on-demand support during outages, upgrades, and critical events.

Skills

Analytical skills

Problem-solving

Communication skills

Technical leadership

Tools

Microsoft 365

Azure

Windows Server

AWS

Google Cloud

SharePoint

OneDrive

Teams

Exchange

Intune

Job description

MicroSourcing is seeking a Senior System Administrator in Ortigas, Pasig, onsite three days a week, with strong Microsoft 365/Azure and networking experience. You will lead complex IT support, manage cloud environments, and drive security and continuity initiatives.

Healthcare coverage on day one, paid time-off with cash conversion, group life insurance, and performance bonuses accompany a collaborative, inclusive culture and opportunities for growth.