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Role Overview

We are looking for a seasoned Senior Network Engineer to strengthen our IT Infrastructure team. This individual will spearhead the design, deployment, administration, and optimization of Microsoft infrastructure technologies, specializing in Microsoft Exchange (both On-Premises and Exchange Online), Microsoft 365, Active Directory, Entra ID (Azure AD), and associated key enterprise platforms.

Key Responsibilities

Architect, deploy, manage, and support Microsoft Exchange Server environments (On-Premises and Exchange Online).
Administer hybrid Exchange infrastructures and oversee Microsoft 365 tenant management.
Operate and sustain Active Directory, Group Policy Objects (GPO), DNS, DHCP, and general Windows Server services.
Manage Microsoft Entra ID (Azure AD), including identity sync and authentication workflows.
Implement security measures such as Microsoft Defender, Conditional Access, Multi-Factor Authentication (MFA), and Exchange Online Protection.
Monitor performance, accessibility, and security of messaging infrastructure.
Plan and conduct migrations of Exchange and Microsoft 365 platforms along with infrastructure updates.
Configure and maintain email security protocols, spam filters, mail routing, and compliance standards.
Carry out backup operations, disaster recovery initiatives, and business continuity for messaging systems.
Resolve complex Microsoft infrastructure issues and provide advanced technical support (third-level escalation).
Collaborate with cybersecurity, networking, cloud, and other infrastructure divisions on enterprise-level projects.
Develop comprehensive technical documentation, operational manuals, and system design documents.
Ensure infrastructure complies with IT governance policies, security mandates, and Microsoft best practices.
Assess emerging Microsoft technologies and suggest enhancements to improve infrastructure robustness and efficiency.

Qualifications and Experience

Possess a bachelor's degree in Information Technology, Computer Science, Computer Engineering, or a related discipline.
Have between 7 to 10 years of professional experience managing Microsoft infrastructure and enterprise messaging environments.
Hands-on expertise with Microsoft Exchange Server, Exchange Online, Microsoft 365 administration, Active Directory, Microsoft Entra ID (Azure AD), Windows Server, PowerShell scripting, Microsoft Defender, and Exchange Online Protection.
Experience with hybrid Exchange configurations and Microsoft 365 migration projects.
Comprehensive knowledge of Microsoft security frameworks, identity management, and regulatory compliance solutions.
Familiarity with virtualization technologies like VMware or Hyper-V.
Understanding of backup strategies and disaster recovery practices.
Good grasp of DNS, SMTP protocols, certification management, networking concepts, and mail flow troubleshooting.
Advantageous to have experience with Microsoft Intune and endpoint management.
Strong analytical abilities, troubleshooting acumen, and problem-solving skills.
Excellent English communication skills, both written and verbal.

Certifications Preferred

Microsoft Certified: Exchange Server (legacy certifications acceptable)
Microsoft Certified: Azure Administrator Associate (AZ-104)
Microsoft 365 Certified: Messaging Administrator Associate
Microsoft 365 Certified: Enterprise Administrator Expert
Microsoft Certified: Identity and Access Administrator Associate (SC-300)
ITIL Foundation certification favored

Key Competencies

Expertise in Enterprise Messaging Management
Proficient Microsoft 365 Administration
Identity and Access Management skills
Proven experience with Hybrid Cloud technologies
Strong infrastructure security knowledge
Automation through PowerShell scripting
Disaster recovery planning and high availability implementation
Technical leadership and problem resolution capabilities
Stakeholder interaction and management
Documenting and process refinement practices

Senior Network Engineer

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