Senior Systems Administrator 4P/655
4p-Consulting-Inc.
Senior Systems Administrator – Messaging & Automation Location: Atlanta, GA Contract- 6 Months Client- Southern Company. 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 #J-18808-Ljbffr 4p-Consulting-Inc.
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