Lead System Engineer-Microsoft Exchange Expert

Job Title: Messaging SME – IT Infrastructure Expert (Microsoft O365)

Overview

We are seeking a highly experienced IT Infrastructure Expert specializing in Microsoft Exchange and Office 365 to lead complex enterprise messaging environments. This role demands deep technical expertise, strategic thinking, and hands-on experience in designing, implementing, and optimizing large-scale messaging platforms.

Key Responsibilities

• Architect, administer, and optimize enterprise-level Microsoft Exchange (On-Prem & Online) and Office 365 environments, ensuring high availability, security, and compliance.
• Act as a Tier-3 escalation point for critical messaging issues, performing advanced troubleshooting and root cause analysis across hybrid infrastructures.
• Design and implement migration strategies for Exchange Online and hybrid deployments, ensuring seamless integration with Active Directory and other enterprise systems.
• Monitor and analyse system performance, proactively identifying bottlenecks and implementing robust solutions to maintain optimal service delivery.
• Develop and enforce best practices, governance policies, and security standards for messaging platforms.
• Automate administrative tasks using advanced PowerShell scripting and other automation frameworks to improve operational efficiency.
• Collaborate with cross-functional teams to evaluate emerging technologies, recommend improvements, and drive modernization initiatives.
• Maintain comprehensive documentation for architecture, processes, and troubleshooting guides.
• Provide technical leadership and mentorship to junior engineers and support teams.
• Ensure compliance with ITIL processes, including incident, problem, and change management.

Required Skills & Experience

• 10+ years of progressive experience in enterprise messaging platforms, including Microsoft Exchange (On-Prem & Online), Office 365, and hybrid environments.
• Proven expertise in Active Directory, DNS, SMTP, POP/IMAP protocols, Email Gateways and related networking fundamentals.
• Strong proficiency in PowerShell scripting for automation and remediation.
• Hands-on experience with large-scale migrations, tenant management, and license optimization.
• Deep understanding of Office 365 capabilities, service descriptions, and security/compliance features.
• Experience with Microsoft System Center Configuration Manager (SCCM) and integration with messaging platforms.
• Familiarity with monitoring tools for log analysis and performance optimization.
• Certifications preferred: Microsoft Certified Solutions Expert (MCSE), Microsoft 365 Certified: Enterprise Administrator Expert, ITIL Foundation.

Desired Attributes

• Strategic thinker with architectural mindset and ability to design scalable, resilient messaging solutions.
• Exceptional problem-solving and analytical skills, capable of resolving complex technical challenges under pressure.
• Strong communication and leadership skills to influence stakeholders and guide technical teams.
• Passion for innovation and continuous improvement in enterprise messaging technologies.

Job Title: Messaging SME – IT Infrastructure Expert (Microsoft O365)

Overview

We are seeking a highly experienced IT Infrastructure Expert specializing in Microsoft Exchange and Office 365 to lead complex enterprise messaging environments. This role demands deep technical expertise, strategic thinking, and hands-on experience in designing, implementing, and optimizing large-scale messaging platforms.

Key Responsibilities

• Architect, administer, and optimize enterprise-level Microsoft Exchange (On-Prem & Online) and Office 365 environments, ensuring high availability, security, and compliance.
• Act as a Tier-3 escalation point for critical messaging issues, performing advanced troubleshooting and root cause analysis across hybrid infrastructures.
• Design and implement migration strategies for Exchange Online and hybrid deployments, ensuring seamless integration with Active Directory and other enterprise systems.
• Monitor and analyse system performance, proactively identifying bottlenecks and implementing robust solutions to maintain optimal service delivery.
• Develop and enforce best practices, governance policies, and security standards for messaging platforms.
• Automate administrative tasks using advanced PowerShell scripting and other automation frameworks to improve operational efficiency.
• Collaborate with cross-functional teams to evaluate emerging technologies, recommend improvements, and drive modernization initiatives.
• Maintain comprehensive documentation for architecture, processes, and troubleshooting guides.
• Provide technical leadership and mentorship to junior engineers and support teams.
• Ensure compliance with ITIL processes, including incident, problem, and change management.

Required Skills & Experience

• 10+ years of progressive experience in enterprise messaging platforms, including Microsoft Exchange (On-Prem & Online), Office 365, and hybrid environments.
• Proven expertise in Active Directory, DNS, SMTP, POP/IMAP protocols, Email Gateways and related networking fundamentals.
• Strong proficiency in PowerShell scripting for automation and remediation.
• Hands-on experience with large-scale migrations, tenant management, and license optimization.
• Deep understanding of Office 365 capabilities, service descriptions, and security/compliance features.
• Experience with Microsoft System Center Configuration Manager (SCCM) and integration with messaging platforms.
• Familiarity with monitoring tools for log analysis and performance optimization.
• Certifications preferred: Microsoft Certified Solutions Expert (MCSE), Microsoft 365 Certified: Enterprise Administrator Expert, ITIL Foundation.

Desired Attributes

• Strategic thinker with architectural mindset and ability to design scalable, resilient messaging solutions.
• Exceptional problem-solving and analytical skills, capable of resolving complex technical challenges under pressure.
• Strong communication and leadership skills to influence stakeholders and guide technical teams.
• Passion for innovation and continuous improvement in enterprise messaging technologies.