Senior Incident Response Analyst (R-19347)

Jacksonville - Florida - United StatesSecurity /Employee: Full Time /HybridShape the Future with Dun & BradstreetAt Dun & Bradstreet, we believe data has the power to create a better tomorrow. As a global leader in business decisioning data and analytics, we help companies worldwide grow, manage risk, and innovate. For over 180 years, businesses have trusted us to turn uncertainty into opportunity. We’re a diverse, global team that values creativity, collaboration, and bold ideas. Are you ready to make an impact and help shape what’s next? Join us! Explore opportunities at dnb.com/careers.We are seeking a highly skilled Senior Incident Response Analyst to lead advanced threat detection, investigation, and remediation efforts within our Security Operations program. This role is responsible for handling complex security incidents, guiding junior analysts, improving detection capabilities, and strengthening our overall security posture. The Senior Incident Response Analyst brings deep technical expertise, strong analytical thinking, and a proactive mindset toward defending the enterprise.Key Responsibilities:Lead high‑fidelity alert investigations, performing deep technical analysis to rapidly identify, contain, and remediate threats.Own complex incident investigations, driving technically precise conclusions and elevating the organization’s detection and response maturity.Champion process development, identifying gaps, designing scalable workflows, and implementing improvements that strengthen the Incident Response program.Create and refine technical playbooks, documentation, and response guides, ensuring clarity, consistency, and operational excellence.Mentor and uplift junior analysts, providing guidance, coaching, and training to build a high-performing team.Serve as the escalation point for critical and ambiguous cases, applying advanced threat analysis and sound judgment under pressure.Collaborate with engineering, IT, Legal, HR, and business partners to resolve incidents holistically and drive enterprise-wide security improvements.Apply strong analytical and technical expertise to continuously enhance SOC processes, workflows, and response capabilities.Contribute to the evolution of our detection landscape, partnering with detection engineering to improve log ingestion, alert logic, and signal quality.Assess and mitigate AI‑related security risks, including model misuse, prompt injection, data leakage, and emerging automation attack vectors.Participate in an on‑call rotation, serving as a trusted responder for high‑severity incidents.Skills Needed:At least 1 SANS/GIAC Certification (GCIH, GREM, GCFA preferred)Strong Hands-on experience withSIEM Platforms (Splunk, Microsoft sentinel, etc)EDR Tools (CrowdStrike, Carbon Black)Cloud environments (Azure, AWS, GCP, AliCloud)Network log analysis (Netflows and PCAP files)Deep understanding of:Mitre ATT&CK frameworkMalware behavior and exploitation techniquesWindows, Linux, and macOS internalsScript analysis (Javascript, VBscript, powershell, python)Malicious binary analysis (Windows, MacOS, Linux)Clear communication rooted in technical competenceConfidence discussing findings with peers and senior managementEducation:Bachelors Degree - RequiredBenefits We Offer· Generous paid time off in your first year, increasing with tenure.· Up to 16 weeks 100% paid parental leave after one year of employment.· Paid sick time to care for yourself or family members. · Education assistance and extensive training resources.· Do Good Program: Paid volunteer days & donation matching. · Competitive 401k with company matching. · Health & wellness benefits, including discounted Wellhub membership rates.· Medical, dental & vision insurance for you, spouse/partner & dependents.All Dun & Bradstreet job postings can be found at . 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