The Lead Security Engineer ensures a secure architecture for internal systems and business-to-business operations. This includes managing risks, implementing security measures-particularly for cloud platforms like Azure, Teams/O365, and iManage Cloud-and maintaining documentation for the Global Security Team. The role works closely with IT and security leadership to achieve objectives, ensure compliance, and respond effectively to security incidents. What you''ll do: Ensure a secure architecture for authorisation and authentication internally, as well as business to businessImplement security architecture of the firm related to transition to cloud (e.g., Azure, Teams/O365 and iManage Cloud)Develops and maintains all documentation related to Global Security Team operations and functionsManaging Data Loss Prevention (DLP) systems, defining policies, monitoring incidents, and reporting metricsDetects, investigates, and responds to all information security incidents Maintains and executes the incident response plan, identifying causes and recommending mitigationControls access to information systems and manages related security configurationsDevelops and enforces security policies to meet compliance and client requirementsEnsures monitoring, alerts, and risk assessments for vendors, projects, and systems are completedAssists with new IT policy development, security audits, and testing before productionOversees independent security program reviews and addresses identified gapsMon