Senior Systems Admin: Cloud, Security & Hybrid Infra

MicroSourcing; Manila; On-site; PHP 2,400,000 - 2,900,000; Full time

Benefits offered by this job

Healthcare on day one

Dependent coverage

Paid time-off with cash conversion

Group life insurance

Performance bonuses

Job summary

MicroSourcing is seeking a Sr. Systems Admin to manage enterprise IT infra, including M365/Azure and Windows Server. You will oversee cloud and on-premise environments, security controls, and network infrastructure while mentoring junior staff.

The role emphasizes lead responsibilities, collaboration with internal teams, vendors, and ensuring business continuity in a fast-paced professional services setting.

Qualifications

• 7+ years of relevant IT enterprise experience.
• Strong M365 and Azure with cloud exposure.
• Experience managing Windows Server environments.
• Enterprise networking and security in a hybrid cloud environment.
• Degree in IT or related field.
• Strong communication and mentoring skills.

Responsibilities

• Manage and maintain enterprise IT infrastructure for reliable day-to-day operations.
• Administer Microsoft 365 and Azure environments; basic AWS knowledge.
• Maintain Windows Server configurations, patches, monitoring, and support.
• Troubleshoot enterprise network including firewalls, routing, switching, and wireless.
• Support cloud infrastructure in hybrid cloud and assist migrations/modernisation.
• Manage user access, devices, onboarding and offboarding processes.
• Monitor infrastructure, resolve issues, minimise service disruptions.
• Lead system upgrades, migrations and infrastructure improvement projects.
• Support backup, disaster recovery, and business continuity.

Skills

Analytical thinking

Problem solving

Communication

Autonomous work

Team collaboration

Mentoring

Education

Bachelor's degree in IT/CS or related field

Tools

Microsoft 365

Azure

AWS

Windows Server

Networking (firewalls, routing, switching, wireless)

SharePoint

OneDrive

VPN

Job description

MicroSourcing is seeking a Sr. Systems Admin to manage enterprise IT infra, including M365/Azure and Windows Server. You will oversee cloud and on-premise environments, security controls, and network infrastructure while mentoring junior staff.

The role emphasizes lead responsibilities, collaboration with internal teams, vendors, and ensuring business continuity in a fast-paced professional services setting.