Senior Server Engineer

Job Description

The Senior Server Engineer (Contract) will lead engineering, troubleshooting, and optimization of enterprise messaging platforms including Microsoft 365 Exchange, Exchange on-premises, Proofpoint, Defender for Email, and Azure-based identity and security services. The contractor will provide advanced support, assist with migrations and modernization initiatives, enhance security posture, and serve as a subject matter expert (SME) for email and messaging infrastructure.

This role requires deep technical experience in enterprise messaging architectures, hybrid Exchange environments, email security, and Windows server systems, with the ability to work independently while collaborating with IT, security, and operational teams.

Qualifications

Required Qualifications

· 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 Skills

· 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.

Additional Information

Why Join Us?
InstantServe  offers a dynamic work environment where you can make a significant impact on the healthcare industry. We provide competitive compensation, opportunities for professional growth, and a supportive team culture. All your information will be kept confidential according to EEO guidelines.