Lead Cyber Security Specialist at SSENSE1

We are looking for a highly motivated and technical Lead Cyber Security Specialist to join our Technology & Engineering team, which is the core technical engine that builds the future. In this role, you will lead security operations by managing our security infrastructure (SentinelOne, Cloudflare, Okta, Area1), responding to incidents, and establishing security policies across all systems. You'll operate independently while collaborating closely with Network, DevOps, Engineering, Service Desk, and HR Training teams.  You'll serve as the technical security subject matter expert across the organization and act as Level 2 escalation for the managed security response team.  What You Will Do Tech Security Operations • Manage security infrastructure across SentinelOne, Cloudflare Zero Trust, Okta, Active Directory, Area1, and Google Workspace to ensure comprehensive protection of endpoints, cloud systems, identities, and data • Oversee security incident response by investigating threats, coordinating containment and remediation efforts, and documenting lessons learned to prevent recurrence • Manage email security operations, including spam filtering, phishing prevention, and threat detection to protect against email-based attacks and data exfiltration • Track and report security KPIs, metrics, and security posture to leadership through dashboards and regular reporting to enable data-driven security decisions Tech Security Governance & Improvement • Establish and maintain security policies, standards, and incident response procedures that align with industry best practices and support potential future compliance initiatives • Develop application security practices by integrating security into the SDLC, conducting threat modelling, and coordinating vulnerability remediation with engineering teams to reduce exploitable weaknesses • Build security awareness across the organization by collaborating with HR Training to implement phishing simulations and training programs that reduce human-factor risk