Cyber - Enterprise Security - Microsoft M365 Security Senior Manager

Position Summary

Job Title: Senior Manager - Microsoft M365 Security

Are you interested in working in a dynamic environment that offers opportunities for professional growth and new responsibilities? If so, Deloitte could be the place for you. Traditional security programs have often been unsuccessful in unifying the need to both secure and support technology innovation required by the business. Join Deloitte's Cyber Microsoft Security team and become a member of the largest group of cybersecurity professionals worldwide.

Recruiting for this role ends on 12/31/2025.

Work you'll do

As a Senior Manager for Microsoft M365 Security, you will be at the front lines with our clients supporting them with their security needs specifically helping them address Microsoft E3 and E5 adoption and broader Microsoft security technology platform needs across the following Microsoft technology stacks: Entra ID, Active Directory, Defender for Office (Email Security), Defender for Cloud -CWPP/CNAPP, Defender for Cloud Apps (CASB), Defender for Endpoint & Servers, Purview MPIP/DLP/IRM, Sentinel, Defender XDR & Security Copilot and hardening Azure & Office 365 workloads. Responsibilities as a Senior Manager will include:

• Advise clients on strategy and designing and implementing, migrating, and operating Microsoft security technology solutions listed above - aka M365 Security
• Assist clients with M365 E3 and E5 analysis, roadmap, design and adoption
• Build, develop and maintain client relationships by developing a reputation as a senior professional who delivers exceptional results.
• Serve as a subject matter expert (SME) on Microsoft Security solutions for senior business and technology stakeholders.
• Lead Microsoft security teams at industry leading clients for deploying and advising on Microsoft M365 security services.
• Lead business development activities such as defining scope of services, building resource estimates and related pricing, packaging proposals and supporting the delivery of the proposal to the client for Microsoft Security services
• Lead the overall delivery of multiple Microsoft M365 security projects in a project leader and program manager role, overseeing the activities of onsite and offshore engineers and architects
• Function as the primary client day to day interface building rapport and trust with the client
• Review and oversee the generation of all project deliverables such as assessment reports, system designs/ architectures and risk/security recommendations
• Maintain strong domain knowledge of Microsoft M365 Security solutions
• Lead the execution of Microsoft M365 Security engagements during different phases of the lifecycle - assess, design, and implementation. Microsoft M365 Security may include the full and broad features set of the platform as defined in Microsoft Premium SKU's such as G5 and E5
• Lead engagements to perform technical health checks for Microsoft M365 Security platforms/environments prior to broader deployments.
• Oversee technical support for Microsoft M365 Security services and resolve service-related issues through research and troubleshooting and working with vendors.
• Architect, design, and implement large-scale Microsoft M365 Security deployments/migrations/upgrades with a project team
• Performing technical health checks for the Microsoft M365 Security platforms/environments prior to broader deployments with a project team.
• Supporting proof of concept and production deployments of Microsoft M365 Security with a project team.
• Assisting clients with operational transitions to the Microsoft M365 security solutions
• Providing technical support for M365 Security solutions and resolving service-related issues through research and troubleshooting and working with Microsoft
• Implementation of industry leading practices around M365 Security solutions
• Lead teams troubleshooting system level problems in a multi-vendor, multi-protocol network environment
• Lead teams documenting platform technical issues, analysis, client communication, and resolution as part of cyber risk mitigation steps
• Support Deloitte M365 Security Operate teams on client calls as necessary.
• Acting as a subject matter expert for Microsoft M365 Security solutions
• Lead eminence activities, such as whitepapers and POV's pertaining to Microsoft M365 Security technologies
• Lead talent processes in the senior manager role such as for recruiting and coaching of employees in the Microsoft M365 Security space

• 10+ years of experience in technical consulting, client problem solving, architecting and designing security solutions with a strong focus on Microsoft M365 Security solutions such as Entra ID, Active Directory, Defender for Office (Email Security), Defender for Cloud -CWPP/CNAPP, Defender for Cloud Apps (CASB), Defender for Endpoint & Servers, Purview MPIP/DLP/IRM, Sentinel, Defender XDR & Security Copilot. This should be in leadership roles responsible for project scope, pricing and delivery leading multiple proposals and projects at the same time

• 10+ years of senior technical /leadership experience in enterprise security operations, enterprise security architecture or infrastructure operations plus 3+ years in consulting leadership roles with a very strong focus and experience with Microsoft security technologies

• Ability to travel up to 50%, on average, based on the work you do and the clients and industries/sectors you serve
• BA/BS Degree in Computer Science, Cyber Security, Information Security, Engineering, Information Technology.
• Limited visa sponsorship may be available

• Previous Consulting experience preferred.
• Certifications such as: Microsoft new roles-based certifications (eg. SC 200), CCSP, CCSK, CISSP, CCNP, CCNA, MCSE, MCSA certification a plus.
• Knowledge of security and privacy-related industry standards and frameworks (e.g., ISO 27001/2, NIST 800-53, NIST CSF, CSA CCM) is a plus.
• Experience with engaging C-Level executives and developing cyber risk strategies to address broad security issues.
• Experience with leading multiple distributed teams across different geographies.
• Ability to develop compelling proposals for client to clearly articulate the need for information security.
• Excellent writing and verbal communication skills.
• Strong project management and organizational skills.