Lead administration and governance of Microsoft 365 and Azure, manage complex cross-tenant access and M&A integrations, oversee mailbox/Teams/SharePoint migrations, administer email security, manage Windows server and virtualization operations, govern Power Platform, handle delegated access, and provide technical ownership during acquisitions.
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.
- 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: $180,000 - $200,000 Base Salary
#LI-JM3
Cantor Fitzgerald New York, New York, USA Office
499 Park Avenue, New York, NY, United States, 10022
Similar Jobs
Cloud • Information Technology • Machine Learning
Lead administration and optimization of Ironclad CLM and other legal systems; design contract workflows, build integrations with CRM/ERP/procurement/billing/identity systems, develop reports and analytics, manage security and data governance, support migrations and enhancements, troubleshoot issues, and create documentation and training for legal and business stakeholders.
Top Skills:
APIsBillingBrightflagClmCRMDescartesErpGenerative AiIdentity ManagementIroncladProcurement
Fintech • Machine Learning • Payments • Software • Financial Services
Design, develop, deploy, and support foundational AI systems, including model training, LLM inference, similarity search, guardrails, evaluation, governance, and observability. Optimize large-scale production AI systems for scalability, latency, throughput, cost, and hardware utilization. Partner with engineers, scientists, technical program managers, and product managers while contributing to technical vision, roadmap development, and responsible AI practices. Lead and mentor engineering teams and apply emerging AI research to production systems.
Top Skills:
AWSAws UltraclustersAzureC#C++GoGCPHugging FaceJavaNemo GuardrailsPythonPyTorchScalaVectordbs
Cloud • Information Technology • Machine Learning
Debug and fix complex kernel and container runtime interactions for a large GPU fleet: investigate kernel crashes, cgroup and namespace edge cases, and scheduler/memory issues; develop and upstream kernel or container-runtime patches; build observability tooling and partner with hardware, platform, and fleet teams during incident response.
Top Skills:
CCgroups V1Cgroups V2ContainerdCrashCriEbpfGdbGpu DriverKdumpKubeletKubernetesLinuxLinux KernelNamespacesRdma/RoceRunc
What you need to know about the NYC Tech Scene
As the undisputed financial capital of the world, New York City is an epicenter of startup funding activity. The city has a thriving fintech scene and is a major player in verticals ranging from AI to biotech, cybersecurity and digital media. It also has universities like NYU, Columbia and Cornell Tech attracting students and researchers from across the globe, providing the ecosystem with a constant influx of world-class talent. And its East Coast location and three international airports make it a perfect spot for European companies establishing a foothold in the United States.
Key Facts About NYC Tech
- Number of Tech Workers: 549,200; 6% of overall workforce (2024 CompTIA survey)
- Major Tech Employers: Capgemini, Bloomberg, IBM, Spotify
- Key Industries: Artificial intelligence, Fintech
- Funding Landscape: $25.5 billion in venture capital funding in 2024 (Pitchbook)
- Notable Investors: Greycroft, Thrive Capital, Union Square Ventures, FirstMark Capital, Tiger Global Management, Tribeca Venture Partners, Insight Partners, Two Sigma Ventures
- Research Centers and Universities: Columbia University, New York University, Fordham University, CUNY, AI Now Institute, Flatiron Institute, C.N. Yang Institute for Theoretical Physics, NASA Space Radiation Laboratory
