Senior Systems Administrator 4P/6554p-Consulting-Inc. • Atlanta, Georgia, United States
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Senior Systems Administrator 4P/655
4p-Consulting-Inc.
- Atlanta, Georgia, United States
- Atlanta, Georgia, United States
Über
Position Summary We are seeking a highly skilled
Senior Systems Administrator – Messaging
to lead the administration, optimization, and automation of enterprise messaging platforms.
This role supports and enhances Microsoft Exchange (on-prem, hybrid, and Exchange Online), Microsoft 365, and Proofpoint environments. A strong emphasis is placed on
automation-first engineering , leveraging PowerShell, Python, Microsoft Graph API, REST APIs, and Power Automate to reduce manual operations and enable scalable, resilient systems.
The ideal candidate brings a
code-first mindset , strong scripting ability, and deep enterprise messaging expertise.
Key Responsibilities Messaging Platform Administration & Support
Administer and support:
Microsoft Exchange Server (on-prem & hybrid)
Exchange Online (Microsoft 365)
Ensure high availability, performance, reliability, and security.
Troubleshoot complex issues and conduct root cause analysis.
Lead modernization and system improvement initiatives.
Proofpoint Administration
Administer Proofpoint email security suite:
TRAP
TAP
EFD
SER
POD
Tune policies to reduce false positives and improve detection.
Coordinate incident response with security teams.
Automation & Engineering (Core Focus)
Build automation solutions for daily messaging tasks.
Develop reusable PowerShell and Python modules with:
Error handling
Logging
Source control (Git)
Automate user lifecycle and mailbox management via Microsoft Graph API.
Consume and integrate REST APIs (authentication, pagination, JSON parsing).
Build Power Automate workflows for cross-system orchestration.
Continuously identify and eliminate manual processes.
Monitoring & Alerting
Configure enterprise monitoring and alerting.
Integrate messaging platforms with monitoring/SIEM tools.
Implement automated remediation triggered by alerts.
Project Delivery & Continuous Improvement
Execute messaging-related projects including:
Platform migrations
Mail flow changes
Security enhancements
Partner with infrastructure, identity, and security teams.
Maintain technical documentation and code repositories.
Standardize processes and improve automation at scale.
Required Qualifications
Strong
automation-first mindset .
Advanced PowerShell and Python scripting skills.
Experience working with:
Microsoft Graph API
REST APIs
Power Automate (or similar orchestration tools)
Hands‑on administration experience with:
Exchange Server (on-prem & hybrid)
Exchange Online
Experience with Proofpoint security suite.
Experience configuring enterprise monitoring and alerting.
Strong troubleshooting and analytical skills.
Ability to work independently under general direction.
Willingness to participate in on‑call rotation.
Technical Skills Summary
Microsoft Exchange (On-Prem & Online)
Microsoft 365
Proofpoint (TRAP, TAP, EFD, SER, POD)
PowerShell (Advanced)
Python
Microsoft Graph API
REST APIs
Power Automate
Git / Source Control
SIEM / Monitoring Integration
Core Competencies
Code-first engineering mindset
Process automation expertise
Enterprise troubleshooting skills
Strong documentation discipline
Cross-team collaboration
Clear technical communication
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Sprachkenntnisse
- English
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