Lead, M365 Security Engineer

Valorem Reply, part of the Reply Network, is a leader in Microsoft-based IT solutions. We support and advise our Giant Tech customers in all aspects of Microsoft, and other industry-leading technologies. From designing and developing custom solutions and low-code solutions, to implementing and managing them seamlessly, Valorem Reply helps customers unlock the potential of their IT infrastructure to enable their sales and channel partner initiatives. We are looking for an experienced M365 Security Engineer to lead and manage security solutions across the Microsoft ecosystem. The ideal candidate will have a deep understanding of the Microsoft Security Stack, including Entra, Defender Suite/XDR, Purview, Sentinel, and experience in Threat Hunting. You will play a key role in implementing, managing, and improving security measures within our Microsoft 365 environment, as well as automating tasks using PowerShell and ensuring the overall protection of our cloud services.

Responsibilities

• Design, implement, and maintain Microsoft 365 security solutions, including Entra, Defender Suite/XDR, Purview, and Sentinel. 
• Lead and support Threat Hunting activities to identify potential vulnerabilities and emerging threats within the M365 environment. 
• Manage security configurations and ensure proper integration and deployment of Microsoft Zero Trust solutions to secure company digital estate and assets. 
• Perform security monitoring, incident response, and forensic investigations using Microsoft Sentinel and other security tools in the Microsoft ecosystem. 
• Leverage PowerShell for automation, scripting, and custom reporting to improve security operations efficiency and reduce manual workloads. 
• Provide M365 administration and configuration management for user access, roles, and security settings, ensuring compliance with corporate security and regulatory policies. 
• Regularly review and audit security policies, procedures, and controls, and make improvements to maintain the highest security posture. 

Required Qualifications

• 7+ years of experience in security engineering, with a focus on Microsoft 365 or Office 365 security stackand Compliance Stack. 
• Extensive experience with Endpoint Detection and Response (EDR) solutions and threat hunting, particularly within the Microsoft security ecosystem. 
• Proven expertise with SIEM (Security Information and Event Management) and SOAR (Security Orchestration, Automation, and Response) platforms, particularly in integration and management within the Microsoft environment. 
• Hands-on experience with Identity and Access Management (IAM), specifically with Entra ID and Conditional Access. 
• Strong background in Microsoft security tools including Defender Suite/XDR, Purview, and Sentinel. 
• Proficient in PowerShell scripting for task automation, reporting, and security configuration management. 
• Deep understanding of Cybersecurity fundamentals, including IAM, incident response, and data protection. 
• Extensive experience with Microsoft 365 administrative tasks and associated responsibilities. 
• Proven ability to manage security operations, including incident detection, response, and investigation. 
• Solid understanding of cloud security principles and identity and access management (IAM) practices. 
• Familiarity with security tools, data governance, and best practices for compliance and regulatory requirements. 
• Strong communication and collaboration skills, with the ability to work effectively across teams and departments 

Reply specializes in the design and implementation of solutions based on new communication channels and digital media. Reply is a network of highly specialized companies supporting global industrial groups operating in the telecom and media, industry and services, banking, insurance and public administration sectors in the definition and development of business models enabled for the new paradigms of AI, cloud computing, digital media and the Internet of Things. Reply services include Consulting, System Integration and Digital Services.