Security Engineer ll – Microsoft Sentinel & Defender XDR

📋 Description

• • Join Cyderes, a global leader in cybersecurity services, and contribute to our mission of helping organizations 'Be Everyday Ready™' against relentless threats. As a Security Engineer II specializing in Microsoft Sentinel & Defender XDR, you will be at the forefront of our Managed Sentinel SIEM and MDR services, playing a critical engineering role in safeguarding our clients.
• • This position offers a unique opportunity to move beyond routine platform administration and delve into advanced security engineering. You will be instrumental in developing sophisticated detection strategies, optimizing the performance and efficiency of our security platforms, managing the end-to-end onboarding process for new clients, and seamlessly integrating Microsoft Defender XDR capabilities.
• • Your primary responsibility will be to act as a trusted technical advisor to our diverse client base. This involves ensuring their Microsoft security ecosystem is meticulously configured, continuously tuned for optimal performance, and evolving proactively to counter the ever-changing landscape of cyber threats.
• • You will be deeply involved in the detection engineering lifecycle, crafting custom detection rules, tuning existing ones, and developing advanced analytics to identify and respond to sophisticated attack vectors. This includes leveraging the full power of Microsoft Sentinel's KQL (Kusto Query Language) to build robust and effective threat hunting queries and detection logic.
• • A key aspect of this role is platform optimization. You will analyze platform performance, identify bottlenecks, and implement solutions to enhance efficiency, scalability, and cost-effectiveness. This includes fine-tuning data connectors, optimizing query performance, and ensuring efficient log ingestion and retention policies.
• • The onboarding lifecycle execution is another crucial area. You will guide clients through the process of integrating their environments with our Sentinel and Defender XDR services, ensuring a smooth and successful transition. This involves understanding client requirements, configuring necessary integrations, and validating the setup to ensure comprehensive visibility and protection.
• • You will be responsible for the integration and management of Microsoft Defender XDR components, including Defender for Endpoint, Defender for Identity, Defender for Cloud Apps, and Defender for Office 365. This involves configuring policies, tuning alerts, and ensuring a unified security posture across the XDR suite.
• • Representing and reinforcing the Cyderes brand is paramount. You will achieve this through exceptional collaboration with internal teams and clients, maintaining clear, professional, and timely communication, and consistently delivering services that meet and exceed client expectations.
• • This role requires a proactive approach to threat intelligence. You will stay abreast of the latest threat actor tactics, techniques, and procedures (TTPs), and translate this knowledge into actionable detection and response strategies within the Sentinel and Defender XDR platforms.
• • You will contribute to the continuous improvement of our service offerings by identifying opportunities for innovation, developing new methodologies, and sharing best practices with the wider security team.
• • Engage in threat hunting activities, proactively searching for undetected threats within client environments using advanced querying and analytical techniques.
• • Collaborate with incident response teams to provide context and technical expertise during active security incidents, ensuring swift and effective remediation.
• • Develop and maintain comprehensive documentation for platform configurations, detection rules, and operational procedures.
• • Participate in client-facing meetings, providing technical updates, demonstrating platform capabilities, and addressing client inquiries.
• • Foster a culture of learning and knowledge sharing within the team, mentoring junior engineers and contributing to the collective expertise of Cyderes.