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About Integrated Specialty Coverages Integrated Specialty Coverages, LLC (ISC) is a growth stage technology and data-driven commercial MGA and insurance wholesaler leading innovation in the market. Backed by one of the leading private equity firms, Onex Partners, and led by a forward-thinking management team, ISC is combining the worlds of insurance and technology to create an Insurtech powerhouse. As a leading online distributor of insurance products for a range of industries and “Main Street USA”, we are looking for the right people to help us in our mission of achieving exponential growth. We strive to be the number one place to go for brokers and agents to source insurance. To accomplish this, we’re building a digitally focused team that deeply understands the intersection between user experience, data, and AI/ML to optimize the way we engage with our customers and partners. Job Summary ISC Cybersecurity is seeking a senior, hands‑on defender to build a detection and response function responsible for defensive security operations across our enterprise and AWS environments. The role will report to the CISO and will partner with internal security engineering, as well as with our managed security services provider (MSSP) and managed detection and response (MDR) provider. The Detection & Response Lead focuses on detection engineering, advanced investigation, incident ownership, threat hunting, and maturing our detection and response capabilities. The role serves as the escalation point for security events, ensuring timely containment, high‑quality analysis, and actionable recommendations for improvement. This position is operational and technically deep, driving defensive execution across our AWS and enterprise environments. Position Responsibilities Incident Response & Investigation Conduct incident response for escalated MSSP/MDR alerts, including scoping, investigation, and containment across cloud and endpoint environments. Emergency-only on-call availability is required for high-severity incidents. Perform forensic review of affected systems, including log correlation, event reconstruction, and identification of attacker techniques. Key tooling includes SIEM, EDR, proxy, WAF, and DLP technologies. Provide clear incident findings, timelines, and recommended remediation steps to technical and non‑technical stakeholders. Threat Hunting Conduct hypothesis‑driven and data‑driven hunts to identify malicious or suspicious activity not already surfaced by automated detections or MSSP/MDR workflows. Develop internal hunting methodologies rooted in observed attacker behavior, business‑specific risks, and historical incident patterns. Document and socialize hunt outcomes, including new detection opportunities and defensive insights. Detection Quality & Continuous Improvement Review MSSP/MDR escalations for quality, signal‑to‑noise ratio, and fidelity; drive improvements through structured feedback loops. Identify gaps in log coverage, detection logic, or monitoring effectiveness and coordinate with engineering partners to close them. Drive Mean-Time-To-Detect and Mean-Time-To-Contain metrics as well as detection coverage metrics. Escalation Ownership & Internal Coordination Serve as the technical escalation point for security incidents requiring deep analytical expertise. Coordinate cross‑functional responders (IT, cloud, application owners) during active investigations. Maintain tight alignment with MSSP/MDR workflows, ensuring clarity in escalation criteria, response procedures, and incident severity thresholds. Operational Security Leadership Report to CISO and interface with senior leadership during incidents. Maintain operational runbooks, investigation procedures, and response guides. Track recurring attacker patterns and translate them into defensible operational playbooks. Minimum Qualif