Senior IT Infrastructure Engineer

blaseek; Taguig; Hybrid; PHP 1,000,000 - 1,500,000; Full time

Job summary

blaseek is seeking a Senior IT Infrastructure Engineer to design, maintain, and secure core infrastructure across hybrid environments in the Philippines. You will focus on Microsoft Entra ID, Active Directory, DNS, PKI, and Exchange Online while supporting automation and cloud migrations.

The role requires 7+ years of IT infrastructure experience, strong troubleshooting and communication skills, and the ability to work in a hybrid setup in BGC, Taguig, with morning or night shift schedules.

Qualifications

• Bachelor's degree in Computer Science or related field.
• 7+ years of IT infrastructure engineering experience.
• Experience with hybrid Active Directory and Entra ID.
• Strong knowledge of PKI and VMware vSphere.
• Proven troubleshooting, documentation, and communication skills.
• Willing to work hybrid in BGC, Taguig and shifts.

Responsibilities

• Design, deploy, and maintain Hybrid Active Directory, including Domain Controllers, Group Policies, and Entra ID integration.
• Manage Exchange Online, AWS SES messaging, and enterprise email services.
• Maintain DNS infrastructure using Active Directory DNS and AWS Route 53.
• Design and maintain Enterprise PKI and identity services.
• Manage and secure Windows Server environments.
• Support migration of on-premise infrastructure to AWS cloud services.
• Develop automation scripts using PowerShell and ServiceNow.
• Implement monitoring solutions and identify automation opportunities.
• Provide Level 2 and Level 3 infrastructure support.
• Collaborate with network, security, and application teams to ensure reliable operations.

Skills

Windows Server administration

Microsoft Entra ID & Active Directory

PKI infrastructure

VMware vSphere

Networking & security fundamentals

ITSM / ITIL frameworks

Troubleshooting & communication

Education

Bachelor's degree in Computer Science or related field

Tools

Azure

AWS

DNS

Exchange Online

Job description

Role Overview

The Senior IT Infrastructure Engineer is responsible for designing, maintaining, and securing core IT infrastructure across hybrid environments. The role focuses on Microsoft Entra ID, Active Directory, DNS, PKI, Exchange Online, and cloud-based services, while supporting automation, cloud migration, and infrastructure optimization.

Key ResponsibilitiesInfrastructure Engineering

• Design, deploy, and maintain Hybrid Active Directory, including Domain Controllers, Group Policies, and Entra ID integration.
• Manage Exchange Online, AWS SES messaging, and enterprise email services.
• Maintain DNS infrastructure using Active Directory DNS and AWS Route 53.
• Design and maintain Enterprise PKI and identity services.
• Manage and secure Windows Server environments.
• Support migration of on-premise infrastructure to AWS cloud services.

Automation & Support

• Develop automation scripts using PowerShell and ServiceNow.
• Implement monitoring solutions and identify automation opportunities.
• Provide Level 2 and Level 3 infrastructure support.
• Collaborate with network, security, and application teams to ensure reliable operations.

QualificationsRequired

• Bachelor's degree in Computer Science, Information Systems, or related field.
• 7+ years of experience in IT Infrastructure Engineering or similar role.

Strong Experience In

• Windows Server administration
• Microsoft Entra ID and Active Directory
• PKI infrastructure
• VMware vSphere
• Networking and security fundamentals
• ITSM / ITIL frameworks
• Experience supporting infrastructure projects and enterprise environments.
• Strong troubleshooting, organization, and communication skills.
• Willing to work in a hybrid setup in BGC, Taguig.
• Willing to work on Morning or Night Shift schedules.

Preferred

• Experience with Azure and AWS cloud platforms
• Knowledge of SQL databases
• Experience in Agile environments (Kanban)
• Experience in financial or regulated industries
• Relevant certifications (AWS, Terraform, GitLab, VMware)