Sr. Systems Engineer - M365/Exchange/Teams

Sr. Systems Engineer - M365/Exchange/Teams

Job Description

Position Requirements:

Exchange On-Premises Administration (20%)
Manage and maintain Microsoft Exchange Server 2016/2019/SE infrastructure including mailbox databases, DAGs, and high availability
Perform server maintenance, patching, certificate management, and capacity planning
Troubleshoot mail flow issues, connectivity problems, and performance bottlenecks
Configure transport rules, connectors, and Client Access Services
Manage integration with Enterprise Vault for legacy archive access

Exchange Online Administration (20%)
Administer Microsoft 365 Exchange Online environment and hybrid configuration
Manage mailbox migrations from on-premises to Exchange Online
Configure Exchange Online Protection (EOP), DLP policies, and mail flow rules
Implement retention policies, eDiscovery, and compliance features
Monitor service health and manage M365 compliance requirements
Oversee migration from Enterprise Vault to M365 native archiving/retention

Microsoft Teams Administration (25%)
Administer Teams environment including team/channel governance and lifecycle policies
Configure Teams voice features including Direct Routing, calling policies, and phone system
Manage Teams apps, bots, custom integrations, and connector policies
Implement Teams compliance including retention, eDiscovery, communication compliance, and information barriers
Configure guest access, external access, meeting policies, and live events
Troubleshoot Teams connectivity, quality issues, and client problems
Manage Teams device administration (phones, room systems, displays)

Email Security & Proofpoint Administration (15%)
Administer Proofpoint Email Security platform and configure filtering policies
Manage threat protection including TAP, URL Defense, and Attachment Defense
Monitor and respond to security incidents and phishing campaigns
Implement and maintain email authentication (DMARC, SPF, DKIM) and encryption
Generate compliance and security reports

M365 Ecosystem & Power Platform Support (10%)
Support Power Automate flows integrating with Exchange, Teams, and SharePoint
Assist with Power Platform governance, DLP policies, and connector security
Maintain integration points between SharePoint Online, OneDrive, and Teams
Support automation solutions leveraging M365 services
Understand licensing implications across M365 workloads

Automation & Scripting (10%)
Develop and maintain PowerShell scripts for Exchange, Teams, and M365 automation
Utilize Microsoft Graph API for advanced automation and reporting
Create bulk operation scripts for user provisioning, migrations, and configuration changes
Automate routine administrative tasks and reporting
Document and maintain script libraries and automation workflows

Additional Duties
Participate in on-call rotation to provide Tier 2 support for M365 Platform
Provide Tier 3 support for escalated email and Teams issues
Document configurations, maintain procedures, and train staff
Collaborate with IT security and compliance teams on email and collaboration security initiatives
Assist with M365 governance and adoption planning

Required Technology & Experience

Experience Requirements
3-5 years email and collaboration platform administration experience
Microsoft Exchange Server (2016 or later) administration experience
Exchange Online and Microsoft 365 administration experience
Microsoft Teams administration experience
Proven experience with hybrid Exchange environments and cloud migrations
PowerShell scripting experience for automation and bulk operations
Email security platform administration (Proofpoint preferred)

Required Technical Skills

Exchange & Email
Exchange Server 2016/2019/SE and Exchange Online administration
Hybrid Exchange configuration and coexistence management
Email security protocols (SPF, DKIM, DMARC, TLS/SSL, MTA-STS)
Mail flow troubleshooting and transport rule configuration
Mailbox migration tools and methodologies

Microsoft Teams
Teams administration including governance, policies, and compliance
Teams voice/calling configuration (Phone System, Direct Routing)
Teams PowerShell module and Microsoft Graph API
Meeting and live event configuration
Teams device administration

M365 Platform
Microsoft 365 Admin Center, Security & Compliance Center, and Teams Admin Center
Azure AD/Entra ID administration and conditional access
Microsoft 365 licensing and service management
DLP policies and information protection across workloads

Security & Compliance
Proofpoint Email Protection platform (or similar email security solution)
eDiscovery and content search across Exchange and Teams
Retention policies and records management
Compliance features including communication compliance and information barriers

Scripting & Automation
PowerShell scripting (Exchange Management Shell, Exchange Online PowerShell, Teams PowerShell)
Microsoft Graph API basics Automation and bulk operations scripting
Basic understanding of Power Automate

Infrastructure
Active Directory and DNS management
Certificate management and PKI basics
Load balancers and network connectivity concepts
Windows Server administration

Preferred Qualifications
Microsoft 365 Certified: Messaging Administrator Associate (MS-203)
Microsoft 365 Certified: Teams Administrator Associate (MS-700)
Microsoft Certified: Security, Compliance, and Identity Fundamentals (SC-900)
Proofpoint Certified Administrator Experience with Enterprise Vault administration and EV-to-M365 migrations
Experience with Power Platform (Power Automate, Power Apps)
Knowledge of regulatory compliance frameworks (GDPR, HIPAA, SOX, etc.)
Experience with Microsoft Teams voice/calling and Direct Routing
GitHub/version control for script management

Desired Soft Skills
Strong analytical and troubleshooting abilities
Excellent documentation and communication skills
Ability to work independently and manage multiple priorities
Customer service orientation for end-user support
Proactive approach to system monitoring and maintenance

Notes:
Onsite

VIVA is an equal opportunity employer. All qualified applicants have an equal opportunity for placement, and all employees have an equal opportunity to develop on the job. This means that VIVA will not discriminate against any employee or qualified applicant on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status.