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Lead Microsoft O365 Engineer

Job in Reston, Fairfax County, Virginia, 20190, USA
Listing for: TEKsystems
Full Time position
Listed on 2026-06-15
Job specializations:
  • IT/Tech
    Systems Engineer, IT Consultant, Technical Support
  • Engineering
    Systems Engineer, Technical Support
Job Description & How to Apply Below

Description

We are looking to improve and advance our organization. Our program is focused on the delivery of end-user centric IT technology solution to our customer where we are challenged to provide ongoing innovative and seamless experience while user systems, applications and solutions, provide proactive secure development of IT integrations, automation, concepts, and designs across the enterprise and integrate end-use computing devices, conference room technology, infrastructure hardware and software, Microsoft 365 workloads, identity services, endpoint management, and user applications into a streamlined and seamless experience across the user base.

We foster a positive end-user experience while ensuring protection of the data.

The successful candidate will work within an ITIL environment with a large focus on Dev Ops, automation, and sustaining engineering. The candidate will be a member of the Microsoft 365 Engineering Team providing engineering support for the Microsoft 365 tenant and related services in a hybrid environment. The system is based on Microsoft technology, including on-premises services, Microsoft 365, Entra, Intune, and support for more than 15,000 users.

Priorities will include managing email, messaging, collaboration, meeting, and user-management services. The candidate independently develops solutions, approaches, or makes recommendations to resolve a wide range of complex or difficult problems for both internal/external customers, including vendors. These processes and production requirements often require a flexible work schedule. Serve as a mentor for Junior Engineers.

The candidate may need to deliver presentations and produce well-written technical documents tailored to the customer’s environment and objectives. They will be trained to operate in an Agile Scrum methodology. Participation in scrum sprint activities related to Microsoft 365 engineering, automation, email, messaging, collaboration, meeting and user-management services, Entra, Intune, and hybrid solutions is required. The candidate must possess strong verbal and written communication skills to effectively interact with the customer’s technical staff.

Primary Responsibilities:

Responsibilities include troubleshooting and collaborating with other technical functional groups such as Service Desk, Datacomm, Security, Engineering Teams, Endpoint Management, Identity Management, and application teams for all supported technical issues. Other duties will encompass, but are not limited to:

· Collaborate with Identity Management, Collaboration, Messaging, Mobility Services, Endpoint Management, Security, and Engineering resources to reach quality results and progressive achievements.

· Able to understand cross-team dependencies to ensure new or changed solutions comply with department vision, environment, and security considerations.

· Identify opportunities for improved user experience, service reliability, automation, and operational efficiency based on knowledge of existing solutions, current user technology, Microsoft 365 Roadmap and industry trends.

· Understand requirements gathering, evaluation, testing, and lifecycle management for hardware & software.

· Support efforts for large-scale Microsoft 365 administration automation for user T0 self-service, admin support, monitoring system health, and day-to-day operations.

· Provide consultation on the design, plan, and execution Microsoft 365 workloads including Exchange Online, One Drive, SharePoint Online, messaging and meeting systems, Entra, Intune, and related service integrations.

· Support the development, deployment and execution of Microsoft 365 services, automation capabilities, and develop roadmaps and services strategies.

· Engineer, deploy, automate, and provide sustaining engineering support for our customer program.

· Assist in developing concise and accurate engineering documentation on current and proposed cloud environment including Visio Diagrams, As-Built documents, recommendations for solutions, run books, knowledge guides, script documentation, system health check procedures, and other operations guides.

· Provide technical and operational…

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