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ClosedPosted 107 days ago

Senior Systems Engineer

Cantor Fitzgerald/BGC13 open roles

Pay
$200,000 – $250,000 a year
Where
New York, NY, United States

This posting closed on 2026-10-08. 13 other Cantor Fitzgerald/BGC postings are live.

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Still open, like this oneLive
  1. Senior Software Engineer6d agoCantor Fitzgerald/BGC · New York, NY, United States
  2. QA Engineer6d agoCantor Fitzgerald/BGC · New York, NY, United States
  3. AVP, Software Engineer6d agoCantor Fitzgerald/BGC · New York, NY, United States
  4. Quality Assurance Engineer6d agoCantor Fitzgerald/BGC · New York, NY, United States

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The clock on this job

Early applications get read.

8.2% of postings close within 7 days. Measured by our own scanner across the market. Cantor Fitzgerald/BGC postings stay open a median of 5 days.

Share of postings closed within
  1. 1.8%1 day
  2. 3.6%3 days
  3. 8.2%7 days
  4. 15.2%14 days
  5. 34.0%30 days
This job: posted 107 days ago

Cantor Fitzgerald/BGC median: 5 days open

The posting

Job Description

The Senior Systems Engineer will play a crucial role in managing and optimizing our Microsoft 365 and Azure environments, ensuring secure and efficient operations. This role involves overseeing complex cross-tenant access scenarios, M&A integrations, and domain migrations, as well as providing expertise in Power Platform, Entra ID, and email security.

Responsibilities

  • Lead the administration and governance of Microsoft 365 and Azure environments, including Exchange Online, SharePoint Online, Microsoft Teams, and Entra ID.
  • Manage complex cross-tenant access scenarios, ensuring secure and efficient collaboration across multiple tenants.
  • Oversee M&A integrations and cross-tenant migrations, including mailbox, Teams, SharePoint, and identity consolidation.
  • Configure and manage multi-tenant organization (MTO) settings, such as cross-tenant synchronization, shared address books, and calendar federation.
  • Administer email security and messaging infrastructure, ensuring compliance with industry standards and regulations.
  • Manage Windows server operations, virtualization, and incident response, with a focus on automation and service improvement.
  • Collaborate with internal application development teams to ensure optimal utilization of Power Platform services.
  • Monitor and govern Power Platform database allocations, ensuring efficient resource utilization.
  • Handle read-only and delegated access requests to Azure and M365 resources, maintaining a secure and controlled environment.
  • Provide technical ownership and expertise during M&A activities, ensuring a smooth transition and integration of acquired entities.

Qualifications

  • 5+ years of experience in a Microsoft 365 / enterprise systems engineering role, preferably in a large, complex organization.
  • Proven hands-on experience with M365 cross-tenant migrations and integrations, including mailbox, Teams, and SharePoint migrations.
  • Deep understanding of multi-tenant organization (MTO) architecture and cross-tenant access policies.
  • Strong Entra ID / Azure AD skills, including app registrations, conditional access, and guest identity management.
  • Experience with Power Platform administration, including environment management and service principal governance.
  • Familiarity with email security standards (DMARC, SPF, DKIM) and enforcement tooling.
  • ITSM experience, including change management, CHR procedures, and incident management.
  • Excellent communication skills, both written and verbal, with the ability to collaborate effectively with stakeholders.
  • Enthusiasm for AI tooling and automation, with a willingness to explore and implement AI-powered solutions for infrastructure and M365 operations.
  • Knowledge of financial services regulatory and compliance requirements is an asset.

Compensation Expectations: $200,000 - $250,000 Base Salary

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