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M365 Sr. Exchange Engineer

CACI

Company : CACI

Location : Washington, DC, 20310

Posted Date : 1 November 2025

Job Details

M365 Sr. Exchange Engineer

As a Sr. Microsoft 365 engineer, you will be part of a dynamic and high performing team designing, implementing, and managing a M365 GCC tenant for a government customer. The candidate will be responsible for operational support and service delivery. Work on service delivery initiatives that improve the availability and performance of the managed services and troubleshooting complex incidents.

Responsibilities:

  • Provide end-to-end service support for Microsoft 365 and Exchange Online
  • Participate in service delivery initiatives needed to improve the availability, security and performance of the managed services
  • Lead or participate in troubleshooting complex incidents with other infrastructure teams
  • Assist in managing business relationships across internal teams, vendors, and 3rd party providers as needed to deliver managed services
  • Assist in developing and maintaining standard operating procedures and run books for managed services
  • Monitor the operation of managed services
  • Communicate with the customer to keeping them informed of operational status, progress on agreed deliverables, and notifying them of impending changes or agreed outages

Qualifications:

Required:

  • Ability to attain DHS EOD
  • BA + 10 years' applicable experience, AA + 12 years' applicable experience, Master's degree + 7 years applicable experience or 16 years' experience
  • 5+ of relevant experience in Architecture and designing solutions in Exchange Online, and Microsoft 365
  • Must have strong hands-on experience working on Exchange Online
  • Implement M365 DLP, Purview, Compliance, and Conditional Access
  • Understanding of Message Retention and Data Compliance Requirements
  • A full understanding of the Microsoft 365 and Collaboration technology stack
  • Proficiency in all technical aspects of M365 implementation and Entra ID services
  • Hands on experience with implementation, deployment, migration, and support of core M365 services, including (but not limited to):
    • Exchange Online including mailbox migration, EOP, and Exchange Administration
    • SharePoint Online including policy enforcement, data protection, governance
  • Strong Communication Skills be able to expresses key ideas and obtain tangible feedback from cross-functional team members and stakeholders.

Desired:

  • Microsoft 365 Certified: Enterprise Administrator Expert
  • Microsoft 365 Certified: Messaging Administrator Associate
  • Experience with Azure Cloud, PowerShell scripting, and Automation

An environment of trust.

CACI values the unique contributions that every employee brings to our company and our customers - every day. You'll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.

A focus on continuous growth.

Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground in your career and in our legacy.

Your potential is limitless. So is ours.

Pay Range: There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.

CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.

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