Senior Microsoft Security Engineer

Key Responsibilities

• Deploy, configure, and maintain core Microsoft security technologies, including Azure Networking Security components (Azure Firewall, NSGs, Azure WAF) and Entra ID services (Conditional Access, PIM, Entra Private Access). 
• Execute the onboarding and fine-tuning of the Microsoft Defender suite (e.g., Defender for Endpoint, Defender for Cloud, Defender for Office 365) across customer environments. 
• Implement and manage Microsoft Sentinel for security information and event management (SIEM), including connector deployment, playbook automation, and custom rule creation. 

• Implement and configure Microsoft Purview capabilities, including Data Loss Prevention (DLP) policies, Information Protection (sensitivity labels, encryption), and records management features. 
• Configure eDiscovery, communication compliance, and audit log settings within Purview to meet regulatory and data protection requirements (e.g., GDPR, ISO 27001). 
• Define and apply data classification schemes and retention policies across various data sources using Purview tools. 

• Implement and manage Microsoft Intune policies for endpoint security, compliance, and device configuration. 
• Configure advanced Identity and Access Management (IAM) solutions within Entra ID, focusing on least privilege principles and identity governance. 

• Perform security hardening and ensure operational compliance through the implementation of Azure Policy, and resource locks. 
• Produce clear, detailed, and up-to-date technical runbooks, configuration guides, and "as-built" documentation for all implemented security and compliance solutions. 

Skills, Knowledge and Expertise

• 10 years plus experience in identity and security technologies.
• Deep, hands-on experience with the deployment and configuration of Microsoft Azure security services (Azure Policy, Network Security, Key Vault) and E5 Security. 
• Expert proficiency in configuring and managing Entra ID (formerly Azure AD), including advanced features like Conditional Access Policies, PIM, MFA, and SSO integrations. 
• Proven implementation experience with the Microsoft Defender Suite and Microsoft Sentinel. 
• Practical hands-on experience implementing Microsoft Purview, specifically configuring DLP policies, sensitivity labeling, and retention labels. 
• Strong practical knowledge of managing security controls for Windows and mobile endpoints using Microsoft Intune. 

• Excellent ability to follow detailed technical implementation plans and execute tasks efficiently. 
• Strong troubleshooting and analytical skills to diagnose and resolve complex technical security and compliance issues. 
• Meticulous attention to detail in technical configuration and "as-built" documentation. 

• Current Microsoft certifications such as AZ-500 (Azure Security Engineer Associate), SC-200 (Microsoft Security Operations Analyst), or SC-400 (Microsoft Information Protection Administrator). 
• Practical experience applying security and compliance frameworks such as ISO 27001 or NIST during implementation. 
• Familiarity with automation and scripting tools (e.g., PowerShell, Azure CLI, ARM/Bicep templates) to streamline deployments. 

About
Established over 40 years ago, Codec is a multi-award-winning Microsoft Solutions Partner, trusted by public and private sector organisations to deliver impactful digital transformation. With offices in Dublin, Belfast, Cologne, and across Germany, our team of over 300 experts specialises in harnessing the full potential of Microsoft technologies—including Dynamics 365, Power Platform, Azure, and Copilot—to drive innovation, automation, and operational excellence. Codec combines deep industry expertise with a proven track record to help organisations unlock the power of AI and modern cloud solutionsThough originally best known as a hardware reseller, since 2010 Codec has focused on building an outstanding software consulting business with a team of experts implementing enterprise solutions using products from Microsoft and Oracle. Our customer base, revenues and average contract values have grown steadily year on year and we continue to invest in the provision of new product and service offerings.Our team is a careful mix of recent graduates and experienced professionals from a variety of diverse cultural backgrounds. We are a melting pot of seasoned consultants supported by the best talent from the local universities. We have a thriving placement student academy and graduate recruitment programme which grows year on year.This company is an equal opportunities employer