Senior Incident Response Operations Engineer

Marketing Statement Tokio Marine Global Services (TMGS) is the US-based operation of Tokio Marine Holdings, one of the largest global insurance groups in the world, headquartered in Tokyo, Japan. TMGS accelerates synergy and collaboration across the Tokio Marine Group by delivering core infrastructure services in the areas of actuarial services, internal audit, investor relations, and information technology. TMGS supports Tokio Marine's operations across 46 countries and regions and more than 50,000 employees worldwide, serving as a hub for global innovation through a strong people strategy and sustainable international growth.

As the Senior Incident Response/Operations Engineer under the Global Fusion Center US Operations, you will handle day-to-day maintenance of security infrastructure in addition to proactive threat hunting and incident response. Your role will be key in the development, installation, configuration, and continuous improvement of the global security operations service and be critical in the response to external and internal threats. You will also be expected to identify opportunities to automate and improve effectiveness of operations.

Monitor security systems and infrastructure to support best performance and reliability Maintain robust security feeds and ensure data integrity Refine operational metrics, key performance indicators, and service level objectives to measure Security Operations and Incident Response services Be a technical subject matter expert for Security Operations and incident Response services. Build, cultivate, and maintain positive relationships with internal customers to identify and facilitate solutions to increase the impact of the team's work Follow proper internal controls as necessary to conduct job functions and/or carry out responsibilities and/or administrative activities at the Company Perform special projects and other duties as may be assigned Establish and build strong working relations and partnerships with other teams, Group Companies, and senior management

Experience in threat hunting including leveraging intelligence data to proactively find and iteratively investigate suspicious behavior across networks and systems

Experience analyzing network and host-based security events

Proficient System Administration with either Microsoft Windows or Linux

Proficient with Security Log infrastructure configuration such as Windows Event Forwarding (WEF) or syslog

Proficient in an interpreted language such as Python, Perl, or Ruby

Familiarity with Large Language Models tools such as Ollama

Knowledge of operating systems, file systems, and memory structures on Windows, MacOS and Linux

Knowledge of networking technologies, specifically TCP/IP and the related protocols

Understanding of networks, operating systems, and architecture and how they affect the security posture of a company

Demonstrated ownership of projects or tasks

Tokio Marine Group of Companies (including, but not limited to the Philadelphia Insurance Companies, Tokio Marine America, Inc., TMNA Services, LLC, TM Claims Service, Inc. and First Insurance Company of Hawaii, Ltd.) In order to remain competitive we must attract, develop, motivate, and retain the most qualified employees regardless of age, color, race, religion, gender, disability, national or ethnic origin, family circumstances, life experiences, marital status, military status, sexual orientation and/or any other status protected by law.