Senior Systems Administrator (Email Operations)
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Job Location:
Washington, AR - USA
Monthly Salary:
$ 112000 - 179000
Posted on:
Yesterday
Vacancies:
1 Vacancy
Job Summary
Responsibilities
We are seeking a highly skilled Senior Systems Administrator Email Operations to lead the reliability security and performance of our enterprise messaging environment. This role serves as the technical expert for Microsoft Exchange Exchange Online and email security platforms ensuring high availability secure message flow and compliance across the organization. The ideal candidate excels at troubleshooting complex messaging issues and driving operational excellence in hybrid and cloudbased environments.
Key Responsibilities
Messaging Platform Administration
- Lead daily operations of enterprise email systems (Exchange Exchange Online Microsoft 365).
- Monitor service availability performance message queues and mail flow.
- Support hybrid Exchange environments directory synchronization and identity integration.
Troubleshooting & Advanced Support
- Diagnose and resolve complex email delivery routing and authentication issues.
- Provide tier3 support and serve as the escalation point for messagingrelated incidents.
- Perform rootcause analysis and implement longterm corrective actions.
Email Security & Compliance
- Administer email security solutions (spam/malware filtering phishing protection message encryption).
- Manage policies for retention archiving journaling and regulatory compliance.
- Implement and maintain SPF DKIM DMARC and other authentication standards.
Operations Maintenance & Lifecycle Management
- Perform upgrades patches and configuration changes following change management processes.
- Maintain operational documentation runbooks and disaster recovery procedures.
- Ensure high availability and resilience of messaging infrastructure.
Collaboration & Continuous Improvement
- Work closely with security networking and service desk teams to improve reliability and user experience.
- Mentor junior administrators and contribute to knowledge sharing across the team.
- Recommend enhancements to messaging architecture security posture and operational workflows.
Qualifications
Required Qualifications
- Bachelors degree in IT or a related field and 8 years of experience. 4 years of additional experience may be substituted in lieu of a degree.
- 5 years administering enterprise email systems.
- Strong handson experience with Microsoft Exchange and/or Exchange Online.
- Deep understanding of SMTP DNS (MX SPF DKIM DMARC) and email authentication protocols.
- Experience with email security gateways and compliance tools.
- DoD 8140 IAT Level II certification (e.g. Security).
- Active TS/SCI clearance.
Preferred Qualifications
- Microsoft certifications (Exchange Microsoft 365 Security).
- Experience with advanced message hygiene platforms (e.g. Proofpoint Mimecast Microsoft Defender for Office 365).
- Familiarity with Zero Trust messaging security models.
Peraton Overview
Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the worlds leading mission capability integrator and transformative enterprise IT provider we deliver trusted highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land sea space air and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day our employees do the cant be done by solving the most daunting challenges facing our customers. Visit to learn how were keeping people around the world safe and secure.
Target Salary Range
EEO
Required Experience:
Senior IC
Key Skills
- Computer Science
- Active Directory
- Computer information Technology
- PowerShell
- OS
- Windows
- Database
- SCCM
- Linux
- SAN
- Troubleshoot
- Backup
- Setup
- Technical Support
- UNIX
About Company
Peraton provides innovative solutions for the most sensitive and critical programs in government today, developed and executed by scientists, engineers, and other experts.
