Serve as Tier 2 level for complex technical and Security incidents; Investigate SOC and other security incidents and alerts generated MS Security portals (MS 365 Defender, MCAS, Azure Sentinel) following the company established processes and incidents response procedures; Perform technical analysis from varied data sources (endpoint event logs, SIEM data, dashboards, enterprise applications), then develop and present coherent and reasoned next steps; Proactively identify indicators of compromise and generate and execute Incident Response Plan upon detection; Ensure excellent communication and collaboration with other teams (operations, legal, sales) to help identify / resolve chronic issues and assist with the creation and implementation of corrective / preventative action plans; Research, analyze and identify potential vulnerabilities and security deficiencies; Propose improvements and recommendations to increase visibility and effectiveness of security monitoring systems; Initiate escalation procedure to counteract potential threats/vulnerabilities; Validate Change request that are require a Security analyses and approval; Investigate Phishing/SPAM e-mail messages and take containment actions to mitigate/prevent security breach; Ensure LDC gets the right delivery performance and quality from third party. Take corrective actions whenever not the case; Operate, maintain, and monitor the Security tools used.