Sr. Microsoft Platform Engineer jobs in United States
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Brown Brothers Harriman ยท 3 hours ago

Sr. Microsoft Platform Engineer

Brown Brothers Harriman (BBH) is a premier global financial services firm, known for premium service, specialist expertise, technology solutions and partnership approach to client management. The Sr. Microsoft Platform Engineer serves as a technical subject matter expert for the enterprise collaboration and communication ecosystem, focusing on Microsoft 365 and on-premise platforms, while driving efficiency through automation and integration with core networking and security functions.

BankingFinancial ServicesSecurity
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H1B Sponsor Likelynote

Responsibilities

Design, implement, and maintenance activities across the core Microsoft365 suite (Exchange, Teams, Sharepoint, OneDrive)
Support and configure Azure Active Directory services related to M365 to ensure SSO and MFA effectiveness
Administer and maintain on-premises Microsoft Exchange, SharePoint and Mobile environments, including patching, upgrades, and performance tuning
Manage hybrid configurations between on-premises and cloud services (Exchange Hybrid, SharePoint Hybrid)
Oversee lifecycle management of legacy collaboration systems and plan migrations to modern platforms
Ensure compliance and security controls are enforced across on-premises environments
Develop, deploy, and maintain robust automation solutions using PowerShell for complex administration tasks, bulk operations, reporting, security, and continuous system monitoring across M365 environment
Utilize Power Automate and Power Apps to design and implement business process automation workflows that integrate M365 services (Teams, Sharepoint, Exchange) with external line-of-business applications
Proactively monitor platform health and performance
Configure and maintain enterprise voice platforms (ex. Teams Voice, UC solutions) to ensure reliable, high-quality telephony and advanced calling features across the organization
Support Mobile Access/MDM solutions (ex. Blackberry) to ensure secure and compliant access on mobile devices
Collaborate with networking teams to optimize connectivity

Qualification

Microsoft 365PowerShellExchange Online/HybridPower PlatformNetworking conceptsMicrosoft 365 CertifiedAgile methodologiesITIL FrameworkMentoring

Required

7+ years experience in infrastructure engineering, with a focus on Microsoft Unified Communications and Collaboration
Expert-level proficiency in administering and troubleshooting Exchange Online/Hybrid, Microsoft Teams, and Sharepoint Online
Advanced proficiency in scripting and automation using Powershell
Strong hands-on experience with Power Platform (Power Automate, Power Apps) for building enterprise workflows
Deep understanding of networking concepts (DNS, firewalls, load balancing) relevant to UC Solutions
Experience integrating M365 services with other applications

Preferred

Microsoft 365 Certified: Enterprise Administrator Expert
Working knowledge of agile methodologies and ITIL Framework
Experience mentoring and leading teams

Benefits

Discretionary bonuses
Profit-sharing
Healthcare
Income protection
Professional development opportunities
Time off

Company

Brown Brothers Harriman

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Brown Brothers Harriman is an American partnership bank that offers a range of international investment and banking services.

H1B Sponsorship

Brown Brothers Harriman has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (22)
2024 (16)
2023 (18)
2022 (23)
2021 (15)
2020 (10)

Funding

Current Stage
Late Stage

Leadership Team

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Dana Pasricha
Managing Director/ Head of Reference Data, Shared and Tax services at Brown Brothers Harriman
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Douglas Maine
Senior Advisor
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Company data provided by crunchbase