nLeague ยท 8 hours ago
Senior Server Engineer - Exchange and Cloud Infrastructure
Atlanta, GA
Contract
Hybrid
Senior Level
7+ years expnLeague is seeking a Senior Server Engineer to lead engineering, troubleshooting, and optimization of enterprise messaging platforms. The role involves providing advanced support for Microsoft 365 Exchange, email security, and Azure-based identity services while collaborating with IT and operational teams.
Mobile
Responsibilities
Lead administration and optimization of Microsoft 365 Exchange Online and on-prem Exchange infrastructure
Manage mail flow, routing, retention policies, compliance, and hybrid configurations
Support Exchange infrastructure upgrades, migrations, and service modernization
Administer Proofpoint email security platform, including:
Spam filtering
DLP policies
Encryption settings
Quarantine and forensic analysis
Manage Defender for Email (MDO) including ATP, anti-phishing, safe attachments, and threat intelligence
Troubleshoot and analyze advanced email delivery, threat detection, and user issues
Support Azure AD integration with M365 services, SSO, and hybrid identity synchronization
Assist with security baselines, conditional access, and identity hardening recommendations
Lead major incident resolution for messaging and email security services
Perform root cause analysis and provide corrective and preventive action recommendations
Develop dashboards and reporting for:
Message flow trends
Security detection and blocked threats
Exchange and M365 service metrics
Analyze performance, deliver improvement recommendations, and support SLA-based reporting
Create or update:
Operational SOPs
Architecture diagrams
Runbooks
Root cause and service reports
Mentor internal engineering and operations staff as needed
Qualification
Required
7+ years professional experience supporting enterprise messaging systems
Deep hands-on knowledge of Microsoft 365 Exchange Online
Exchange Server (2013/2016/2019)
Hybrid Exchange coexistence and migrations
Strong experience administering Proofpoint Essentials/Enterprise Protection + TAP, TRAP
Defender for Email/Microsoft Defender for Office 365
Strong troubleshooting skills in email routing
SMTP protocols
DNS (MX, SPF, DMARC, DKIM)
Experience with Azure AD and identity integration
Preferred
PowerShell scripting for automation and reporting
Experience working in government, education, financial, or regulated environments
Familiarity with message trace tools
Transport rule design
Microsoft Purview compliance solutions
Ability to provide architecture guidance and evaluation of new email security technologies
Company
nLeague
nLeague is an IT company offering mobility and engineering services.
51-200 employees
H1B Sponsorship
nLeague has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2024 (2)
2023 (2)
2022 (1)
2021 (6)
2020 (7)
Funding
Current Stage
Growth StageCompany data provided by crunchbase