Sr. Systems Engineer

ASCENDING Inc.; New York (NY); Remote; USD 90,000 - 150,000; Full time

Job summary

An innovative firm is seeking a Senior Systems Engineer to manage and optimize enterprise email systems, focusing on Microsoft Exchange and M365. This fully remote role requires extensive experience in email security solutions like Proofpoint and a strong understanding of Active Directory. You will design, implement, and maintain email solutions while ensuring security and compliance. The ideal candidate will thrive in a remote environment and possess excellent problem-solving skills. Join a forward-thinking team and contribute to enhancing email security and reliability in a dynamic setting.

Qualifications

• 7+ years as a Systems Engineer with expertise in Exchange and M365.
• Strong experience with Proofpoint and email security solutions.

Responsibilities

• Design and maintain Microsoft Exchange and M365 email solutions.
• Manage Proofpoint email security and troubleshoot email flow issues.

Skills

Microsoft Exchange Server

Microsoft 365

Proofpoint

PowerShell

Active Directory

Email Security Protocols

Problem-solving

Job description

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Location: Fully remote within MST, CST, EST time zones

Job Overview

We are seeking a highly skilled Senior Systems Engineer with expertise in on-premises Exchange, Microsoft 365 (M365), and Proofpoint to join our team. This role will be responsible for managing, maintaining, and optimizing enterprise email systems, ensuring security, reliability, and compliance. The ideal candidate will have extensive experience with Exchange Server (on-prem and hybrid environments), Microsoft 365, and email security solutions such as Proofpoint.

This is a contract-to-hire opportunity with a fully remote work setup, though candidates in EST time zone are preferred to align with business operations.

Key Responsibilities

• Design, implement, and maintain Microsoft Exchange Server (on-premises and hybrid) and Microsoft 365 email solutions
• Perform migrations between on-prem Exchange and Microsoft 365, ensuring minimal downtime and data integrity
• Manage and configure Proofpoint email security solutions, including policies, encryption, filtering, and threat protection
• Monitor and troubleshoot email flow, performance issues, and security threats across the enterprise
• Work with Active Directory (AD), Azure AD, and authentication protocols (OAuth, SAML, MFA) to support email security and access management
• Implement email security best practices, including DMARC, DKIM, SPF, and transport rules
• Provide advanced troubleshooting for email-related incidents, collaborating with security teams to mitigate risks
• Automate administrative tasks using PowerShell for Exchange, Microsoft 365, and Proofpoint
• Develop and maintain documentation, including system configurations, processes, and troubleshooting guides
  
  

Required Qualifications

• 7+ years of experience as a Systems Engineer specializing in Exchange Server and Microsoft 365
• Expertise in Microsoft Exchange (2013, 2016, 2019, and Exchange Online), including hybrid environments
• Strong experience with Proofpoint administration, including email filtering, DLP, and encryption
• Proficiency in PowerShell scripting for automation and system management
• Hands-on experience with Active Directory (AD), Azure AD, and identity management
• Familiarity with email security protocols (SPF, DKIM, DMARC) and anti-phishing protections
• Excellent problem-solving skills and ability to work independently in a remote environment
  
  

Preferred Qualifications

• Experience with email migrations (on-prem to cloud, tenant-to-tenant)
• Knowledge of Microsoft Defender for Office 365 and advanced email security configurations
• Familiarity with networking concepts related to email traffic and security
• Microsoft and Proofpoint certifications (e.g., MS-102, MS-203, Proofpoint Certified Protection Professional) are a plus
  
  

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Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Information Technology

• Industries

  Internet Publishing

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