Senior Incident Response Operations Engineer

Tokio Marine Global Services; Boston (MA); On-site; USD 150,000 - 190,000; Full time

Job summary

Tokio Marine Global Services is seeking a Senior Incident Response/Operations Engineer to maintain security infrastructure, hunt threats, and respond to incidents within the Global Fusion Center US Operations. The role emphasizes automation, development of detection rules, and collaboration with security vendors and partner teams.

You will be responsible for proactive threat detection, incident handling, and improving security operations through metrics, automation, and clear communication

Qualifications

• 8+ years of experience in an operational cybersecurity role.
• 3+ years of hands-on incident response experience.
• Experience developing and delivering on incident and program status for leadership.
• 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 CLI shells such as PowerShell or bash.
• 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 regular expressions.
• 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.
• Strong problem-solving aptitude
• Demonstrated ownership of projects or tasks
• Strong verbal and written communication skills
• Demonstrated professionalism and a calm demeanor while dealing with complex or high-urgency situations

Responsibilities

• Conduct security investigations and lead security incident response in a cross-functional environment and drive incident resolution.
• Monitor security systems and infrastructure to support best performance and reliability.
• Implement and manage security tools and processes, to detect and mitigate threats.
• Maintain robust security feeds and ensure data integrity.
• Proactively look for threats working with level one analysts, affected teams and security vendors.
• Author threat detection rules and subsequent SOAR playbooks.
• Refine operational metrics, KPIs, and SLAs to measure Security Operations and Incident Response services.
• Identify and implement security process automation, continuously improving processes and tools.
• Be a technical subject matter expert for Security Operations and incident Response services.
• Provide expertise to partnered security teams in mitigation of those threats.
• Communicate complex technical information clearly and concisely to both technical and non-technical audiences.
• Collaborate with partner security teams to offer guidance and bolster support of the organization’s security infrastructure.
• Build, cultivate, and maintain positive relationships with internal customers to identify and facilitate solutions to increase the impact of the team's work.
• Influence and align the team’s vision and strategy.

Skills

Incident response

Threat hunting

Communication skills

Problem solving

Ownership

Security monitoring

Security operations

Team collaboration

Python/Perl/Ruby scripting

LLM tools familiarity

Tools

PowerShell

bash

Ollama

WEF / syslog

Job description

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.

Job Summary:

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. This position will require a blend of technical expertise, analytical skills, and effective communication abilities to ensure swift and efficient handling of security events. You will also be expected to identify opportunities to automate and improve effectiveness of operations.

Essential Job Functions:

• Conduct security investigations and lead security incident response in a cross-functional environment and drive incident resolution
• Monitor security systems and infrastructure to support best performance and reliability
• Implement and manage security tools and processes, to detect and mitigate threats
• Maintain robust security feeds and ensure data integrity
• Proactively look for threats working with level one analysts, affected teams and security vendors.
• Author threat detection rules and subsequent SOAR playbooks
• Refine operational metrics, key performance indicators, and service level objectives to measure Security Operations and Incident Response services
• Identify and implement security process automation, continuously improving processes and tools.
• Be a technical subject matter expert for Security Operations and incident Response services.
• Provide expertise to partnered security teams in mitigation of those threats
• Communicate complex technical information clearly and concisely to both technical and non-technical audiences
• Collaborate with partner security teams to offer guidance and bolster support of the organization’s security infrastructure
• Build, cultivate, and maintain positive relationships with internal customers to identify and facilitate solutions to increase the impact of the team's work
• Influence and align the team’s vision and strategy

Other Functions:

• 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

Qualifications:

• 8 or more years of experience in an operational cybersecurity role
• 3 or more years of hands-on incident response experience
• Experience developing and delivering on incident and program status for leadership
• 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 CLI shells such as PowerShell or bash
• 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 regular expressions
• 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
• Strong problem-solving aptitude
• Demonstrated ownership of projects or tasks
• Strong verbal and written communication skills
• Demonstrated professionalism and a calm demeanor while dealing with complex or high-urgency situations

EEO Statement:

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.) is an Equal Opportunity Employer. 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.