Senior Microsoft 365 Test Engineer

This Senior Microsoft 365 Test Engineer job is a 12 Months Contract with a client located in New York, NY (Hybrid 3 Days onsite every week).

Job Description

Microsoft 365 Integrated Testing
Lead testing efforts for Microsoft 365 platform changes managed through integrated release management processes.
Define, coordinate, execute, and report on end-to-end testing activities across multiple Microsoft 365 services.
Review engineering requirements, release documentation, and test plans to determine testing scope and impact.
Coordinate testing activities across various technical teams and service owners.
Identify testing gaps, risks, and dependencies and proactively drive issue resolution.
Escalate critical issues and provide timely status updates to stakeholders.




Test Management Execution
Create, maintain, and execute test plans, test cases, and regression test suites.
Manage testing activities using Octane and other testing tools.
Upload testing evidence, test results, and supporting documentation.
Validate platform functionality, integrations, compliance controls, and user experiences.
Lead daily and scheduled regression testing activities.
Ensure test scripts remain current with platform changes and new feature releases.
Work closely with engineering teams to socialize test findings, spikes, defects, and emerging risks.




Maintain working knowledge of Microsoft 365 technologies including:
Microsoft Teams
Microsoft Copilot
SharePoint Online
OneDrive for Business
Exchange Online
Microsoft Entra ID
Microsoft Purview
Vantage (Retention and Governance)
Microsoft 365 security and compliance capabilities
Understand how these technologies integrate and interact within the enterprise ecosystem.




Test Environment Lab Management
Support and maintain Microsoft 365 testing environments.
Manage lab refresh activities and environment readiness.
Coordinate provisioning and maintenance of:
Test accounts
Test tenants
Compute endpoints
Browser configurations
Network configurations
Lower-lane and production-like environments
Identify opportunities to improve and modernize testing infrastructure.

Required Qualifications

• 5+ years of experience in software testing, platform validation, quality assurance, or release management.

• Experience supporting Microsoft 365 collaboration technologies in an enterprise environment.

• Experience coordinating large-scale integrated testing efforts.

• Hands-on experience with test management tools such as Micro Focus ALM/Octane, Jira, or similar platforms.

• Strong understanding of testing methodologies, defect management, and release validation processes.

• Experience managing testing environments and lab infrastructure.

• Strong organizational, communication, and stakeholder management skills.

• Ability to manage multiple workstreams simultaneously and operate independently.

The successful candidate will:

• Ensure high-quality validation of Microsoft 365 platform changes before production release.

• Maintain accurate and current regression test coverage.

• Keep testing environments healthy and production-aligned.

• Improve testing efficiency and operational readiness across the Microsoft 365 ecosystem.

• Drive effective collaboration among engineering, operations, compliance, and release management teams.

• Quickly identify, communicate, and mitigate risks impacting Microsoft 365 services.

Preferred Qualifications

• Experience supporting financial services or highly regulated industries.

• Knowledge of Microsoft Teams administration and collaboration platform operations.

• Familiarity with Microsoft Purview compliance capabilities.

• Experience with Microsoft Copilot testing and validation.

• Understanding of identity and access management concepts within Microsoft Entra ID.

• Knowledge of Agile, DevOps, and enterprise release management practices.

• Experience with automation testing frameworks and test optimization initiatives.