Senior Information Security Associate - Incident Response & Threat Hunting

Job title: Senior Information Security Associate - Incident Response & Threat Hunting
Corporate Title: Associate
Department: Technology
Location: Jacksonville

 

The pay range for this position at commencement of employment is expected to be between $95,000 and $110,000 annually.

 

 

Company overview

Nomura is a global financial services group with an integrated network spanning approximately 30 countries and regions. By connecting markets East & West, Nomura services the needs of individuals, institutions, corporates and governments through its three business divisions: Wealth Management, Investment Management, and Wholesale (Global Markets and Investment Banking). Founded in 1925, the firm is built on a tradition of disciplined entrepreneurship, serving clients with creative solutions and considered thought leadership. For further information about Nomura, visit www.nomura.com.

Aon’s Benefit Index®, Nomura’s benefits rank #1 amongst our competitors

Department overview

The Information Technology department at Nomura is at the forefront of innovation, driving technology solutions that empower our business and enhance client experiences. We leverage cutting-edge technologies to develop and maintain robust systems and infrastructure, ensuring the security, reliability, and efficiency of our operations. Join our team and be part of a dynamic and collaborative environment that embraces technological advancements to deliver value and drive our digital transformation journey.

 

Role description

We are seeking a seasoned Information Security Analyst to join our cybersecurity team. The ideal candidate will spearhead incident response efforts, lead proactive threat hunting initiatives, and drive security improvements across the organization.

 

Incident Response & Investigation

• Lead Tier-3 security incident investigations from detection through resolution
• Perform digital forensics analysis and evidence collection using enterprise toolsets
• Conduct root cause analysis and identify attack vectors
• Implement incident containment and eradication strategies
• Develop comprehensive post-incident remediation plans

 

Threat Hunting & Detection

• Execute proactive threat hunting campaigns using threat intelligence
• Develop and optimize custom queries for security tools and SIEM platforms
• Conduct hypothesis-driven investigations
• Perform IOC-based threat hunting across enterprise environments
• Analyze and report on emerging threat landscapes
• Create and maintain threat hunting playbooks

 

Post-Incident Management

• Design and implement security control improvements
• Enhance detection rules and use cases
• Deliver executive-level reports for management and stakeholders
• Facilitate lessons learned workshops
• Conduct trend and metrics analysis
• Lead knowledge transfer sessions

 

Skills, experience, qualifications and knowledge required

Required Experience

• Minimum 4 years of hands-on experience in information security
• Demonstrated expertise in incident response, digital forensics, and threat hunting
• Proven track record of leading complex security investigations

Technical Skills Required

• Advanced proficiency in SIEM platforms and query languages
• Expertise in digital forensics tools and methodologies
• Experience with threat intelligence platforms and IOC implementation
• Strong understanding of EDR/XDR technologies
• Proficiency in at least one scripti