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With more than 45,000 employees and partners worldwide, the Customer Experience and Success (CE&S) organization is on a mission to empower customers to accelerate business value through differentiated customer experiences that leverage Microsoft’s products and services, ignited by our people and culture. We drive cross-company alignment and execution, ensuring that we consistently exceed customers’ expectations in every interaction, whether in-product, digital, or human-centered. CE&S is responsible for all up services across the company, including consulting, customer success, and support across Microsoft’s portfolio of solutions and products. Join CE&S and help us accelerate AI transformation for our customers and the world. The Global Customer Success (GCS) organization, an organization within CE&S, is leading the effort to enable customer success on the Microsoft Cloud by harnessing leading, AI-powered capabilities and human expertise to deliver innovation solutions that accelerate business value, drive operational excellence and nurture long term loyalty. Support for Mission Critical is a team within Microsoft that provides solution-specific expertise designed to drive peak health and optimum performance of a customer's most important solutions. As a key technical resource for the customer, you will be primarily focused on delivering proactive services such as education workshops, delivering assessments, and providing tailored guidance. Troubleshooting skills are essential as this role will include working with Microsoft Support to expedite incident resolution.
Job Responsibility:
Responsible for delivering Support Mission Critical Service offerings, collaborating with CSU (including CSAs, CSAMs), CSS, Engineering, and other teams as needed
Direct accountability to lead the Proactive Resiliency Efforts, coordinate with other teams on the Accelerated Incident Resolution, and Monitoring & Observability features of an offering
Lead technical engagement with specific workloads that prioritizes Reliability, Security, Supportability, Manageability, and Monitoring and Observability
Coordinating the onboarding phase which includes the Consolidated Assessment Week Delivery
Remediate proactive recommendations for the specified workloads identified
Plan and implement both a Workload-Specific Service Improvement Plan and a Customer Success Plan
Awareness and visibility into critical incidents to ensure RCAs and recommendations are captured and linked to Proactive Resiliency efforts
Collaborate with relevant resources when engaged to help onboard the customer efficiently and effectively, prioritizing customer experience and effort, as well as drive customer-owned monitoring to enable and improve customer's observability capabilities
Build partnership with CSAM to ensure roles are clearly understood and responsibilities are established
Coordinate with the leads of the Accelerated Incident Resolution work stream and, when required, the Proactive Monitoring work stream with our internal partners
Collaborate with support and stakeholders to ensure there is a comprehensive, up-to-date KnowMe available across various teams including CSS
Work with internal teams to request, augment with KnowMe, and share RCAs to customer
Planning and delivering proactive and reactive support including onsite presence as needed
Work with a larger customer account team to strengthen customer relationships and to work on Microsoft cloud and security innovation strategies
Identify and manage customer goals and Support for Mission Critical (SfMC) opportunities across Microsoft Security
Drive and participate in proactive delivery management as well as spot security issues, analyze threats, and drive activities focused on hardening and optimizing your customer's security posture
Work with internal Microsoft support teams, account teams, product engineering and service engineering teams and other stakeholders
Apply and share lessons learned for continuous process and delivery improvement
Engage in meetings with your customers and account teams to review Support for Mission Critical services, customer support issues, and articulate your Customer Success Plans
Share and gain knowledge through technical communities
Contribute to on-call rotations
Requirements:
Proven experience in Security Architecture, Security Operations, or Mission Critical Support for enterprise customers
Deep knowledge of Microsoft Security solutions including: Microsoft Sentinel(SIEM): Log analytics, KQL query authoring, detection rules, workbooks, and automated response playbooks
Microsoft Defender XDR (Extended Detection and Response): Defender for Endpoint, Defender for Office 365, Defender for Identity, Defender for Cloud Apps — unified incident investigation and response
Microsoft Defender for Cloud: Cloud Security Posture Management (CSPM), Cloud Workload Protection (CWP), security recommendations, and regulatory compliance dashboards
Microsoft Entra ID (Identity & Access): Conditional Access, Privileged Identity Management (PIM), Identity Protection, and Zero Trust architecture
Strong troubleshooting skills across security incidents, identity-related issues, and threat investigation workflows
Familiarity with Zero Trust principles, defense-in-depth strategies, and security operations center (SOC) processes
Demonstrated ability to manage high-severity security incidents and provide rapid mitigation strategies
Experience working with customers in highly regulated industries (financial services, government, critical infrastructure)
Excellent verbal and written communication skills for executive-level security briefings and technical deep dives
Ability to collaborate across engineering, product groups, and global support teams
Business fluency in Japanese
Nice to have:
Expertise in threat hunting using KQL across Microsoft Sentinel and Microsoft 365 Defender advanced hunting
Knowledge of SOAR (Security Orchestration, Automation, and Response) including Microsoft Sentinel playbooks and Logic Apps integration
Experience with Microsoft Purview(Information Protection, Data Loss Prevention, Insider Risk Management)
Familiarity with Microsoft Intune and endpoint security management (device compliance, attack surface reduction)