Senior Infrastructure Engineer (Microsoft 365 Platform, Automation & AI)
Work arrangement: Hybrid (3x onsite, 2 days WFH)
Work schedule: Mid shift, 1pm onwards
Location: BGC Taguig
Technical Skills and Experience
Core Skills
● Strong hands-on experience with Microsoft 365 platform engineering.
● Strong Microsoft Entra ID and Identity & Access Management knowledge.
● Strong Hybrid Active Directory architecture and engineering experience.
● Experience with Exchange Online.
● Strong PowerShell scripting and automation capabilities.
● Experience designing and implementing enterprise automation.
● Strong Windows Server engineering, confi guration, hardening and troubleshooting experience.
● Experience with Enterprise PKI concepts, architecture and implementation.
● Strong understanding of DNS, networking and security concepts.
● Experience designing or contributing to enterprise infrastructure architecture.
● Strong troubleshooting and complex problem-solving capabilities.
Preferred Skills
● Practical experience with Microsoft Copilot.
● Experience developing or integrating AI agents.
● Experience with OpenAI or related enterprise AI platforms.
● Experience using AI to improve infrastructure or Microsoft 365 operations.
● ServiceNow automation experience.
● AWS experience, particularly Route 53 and AWS SES.
● Azure experience.
● VMware vSphere knowledge.
● Infrastructure-as-Code or confi guration automation experience.
● ITSM / ITIL experience.
● Experience working within Agile or Kanban delivery models.
● Experience working in fi nancial services or another regulated environment.
Key Responsibilities
Microsoft 365 Platform Engineering and Architecture
● Take ownership of the engineering, architecture and continuous evolution of the enterprise Microsoft 365 platform.
● Design, deploy and maintain Hybrid Active Directory infrastructure, including Domain Controllers, Group Policies and integration with Microsoft Entra ID.
● Design, maintain and enhance Microsoft Entra ID and associated identity and access management capabilities.
● Design and maintain messaging platforms based on Exchange Online and AWS SES.
● Design, deploy and maintain internal and external DNS services, including Active Directory DNS and AWS Route 53.
● Design, deploy and maintain Enterprise PKI infrastructure.
● Engineer, manage and harden Windows Server environments.
● Participate in the transition and modernization of existing on-premises infrastructure toward cloud-based services where appropriate.
● Ensure that architecture and engineering decisions consider security, scalability, reliability, maintainability and operational effi ciency.
● Identify technical debt, platform risks and capability gaps and proactively recommend improvements.
Automation and Engineering
● Identify opportunities to reduce manual operational effort through engineering and automation.
● Design, develop and maintain production-grade automation for Microsoft 365 and supporting infrastructure.
● Develop automation primarily using PowerShell and other appropriate enterprise automation technologies.
● Integrate automation with platforms such as ServiceNow where relevant.
● Build automated monitoring, remediation and operational workfl ows to improve platform reliability and effi ciency.
● Apply automation to recurring operational problems rather than relying on repeated manual intervention.
● Demonstrate practical experience delivering automation that has produced measurable operational or business benefi ts.
● Continuously identify processes that can be simplifi ed, redesigned or automated.
AI, Copilot and Agentic Automation
● Evaluate how AI can be practically applied to Microsoft 365 platform engineering and operations.
● Identify and implement use cases involving Microsoft Copilot, OpenAI and related Microsoft AI technologies.
● Develop, integrate or contribute to AI agents that improve infrastructure operations, platform management or engineering productivity.
● Work with business and technology teams requesting AI-enabled capabilities and assess how these requirements can be implemented within the existing enterprise environment.
● Understand the technical, identity, security and architectural implications of introducing AI capabilities into the Microsoft ecosystem.
● Remain current with Microsoft 365, Copilot, AI and automation developments and identify capabilities that can provide practical value to the organization.
Reliability Engineering
● Apply a Site Reliability Engineering mindset to Microsoft 365 and supporting infrastructure.
● Engineer platforms and services for reliability, resilience, repeatability and scalability.
● Proactively identify potential availability, performance, security and operational risks.
● Improve monitoring and automated remediation capabilities to prevent incidents wherever possible.
● Participate hands-on in resolving complex platform and infrastructure issues where engineering intervention is required.
● Identify recurring incidents and address the underlying engineering or architectural causes.
● Work across infrastructure, security, application, cloud and network teams to improve end-to-end service reliability.
Business and Technology Solutioning
● Engage directly with business stakeholders to understand business requirements, priorities and criticality.
● Translate business requirements into technical architecture and implementable solutions.
● Identify platform dependencies, risks, security considerations and technical constraints associated with proposed solutions.
● Recommend appropriate technical approaches rather than simply implementing requests as received.
● Clearly communicate technical options, trade-offs and recommendations to both technical and non-technical stakeholders.
● Provide technical guidance for new initiatives, deployments, automation and AI-related requirements.
Project and Initiative Ownership
● Take end-to-end ownership of signifi cant Microsoft 365 and infrastructure initiatives.
● Proactively identify improvement opportunities rather than waiting for work to be assigned.
● Defi ne problems, develop solutions, engage the appropriate stakeholders and drive initiatives through completion.
● Own or contribute to architecture, design, planning, implementation, testing and operational transition.
● Coordinate with project management, infrastructure, security, application and business teams as required.
● Manage technical risks, dependencies, estimates and implementation plans.
● Contribute to project budgeting and planning where required.
● Present technical recommendations, proposals and progress to senior stakeholders.
● Act as a trusted lead specialist for major Microsoft 365 and infrastructure initiatives.
