Sr. Security Engineer

Sr. Security Engineer

Function

IT

Our Company

We’re Hitachi Digital, a company at the forefront of digital transformation and the fastest growing division of Hitachi Group. We’re crucial to the company’s strategy and ambition to become a premier global player in the massive and fast-moving digital transformation market.

Our group companies, including GlobalLogic, Hitachi Digital Services, Hitachi Vantara and more, offer comprehensive services that span the entire digital lifecycle, from initial idea to full-scale operation and the infrastructure to run it on. Hitachi Digital represents One Hitachi, integrating domain knowledge and digital capabilities, and harnessing the power of the entire portfolio of services, technologies, and partnerships, to accelerate synergy creation and make real-world impact for our customers and society as a whole.

Imagine the sheer breadth of talent it takes to unleash a digital future. We don’t expect you to ‘fit’ every requirement – your life experience, character, perspective, and passion for achieving great things in the world are equally as important to us.

Job description

Meet Our Team

We are the Global SOC Team, part of Enterprise Information Security at Hitachi Digital. Our mission is to protect the company’s and its customers’ critical information systems and data by proactively monitoring, detecting, investigating, and responding to cyber threats. We are a team of passionate security professionals, threat hunters, and problem-solvers who continuously strive to improve our security posture through innovation, collaboration, and operational excellence.

We are looking for a highly motivated Senior Security Engineer who is passionate about cybersecurity, thrives in a fast-paced environment, and is eager to contribute to a world-class Security Operations Center.

What You'll Be Doing

As a Senior Security Engineer, you will work as an individual contributor within our 24x7 Security Operations Center and play a key role in strengthening our detection, response, and threat hunting capabilities.

Core Responsibilities

• Monitor, triage, and investigate alerts from SIEM, EDR, DLP, Email Security, Identity Protection.
• Lead the investigation of escalated security incidents and drive them to resolution with clear root cause analysis (RCA).
• Perform proactive threat hunting across enterprise environments to identify advanced threats and suspicious activities.
• Develop, tune, and maintain detection use cases, correlation rules, and security analytics.
• Manage and optimize security controls, policies, and automated workflows within EDR platforms (CrowdStrike preferred).
• Conduct malware analysis and security investigations across endpoints, identities, cloud services, and network environments.
• Review and analyze telemetry, logs, and threat intelligence to identify security anomalies and attack patterns.
• Collaborate with Infrastructure, Cloud, Network, IAM, Compliance, and Engineering teams to improve security controls.
• Mentor SOC analysts and provide technical guidance during investigations and incident response activities.
• Keep up to date with emerging threats, attacker techniques, security technologies, and industry best practices.

What You Bring to the Team

Required Experience

• 4-6 years of experience in a 24x7 Security Operations Center (SOC) environment.
• Strong experience handling escalated security incidents and leading investigations.
• Hands-on experience with SIEM, EDR, DLP, Email Security, Identity Protection.
• Experience creating and tuning correlation rules, detection logic, and security policies.
• Experience working with CrowdStrike Falcon or other enterprise EDR platforms.
• Experience conducting incident response, threat hunting, digital forensics, and malware investigations.
• Strong knowledge of MITRE ATT&CK Framework, Cyber Kill Chain, Threat Intelligence, and Attack Analysis.
• Experience performing root cause analysis and producing incident reports for management and technical teams.
• Good understanding of Identity Security, Privileged Access, and Identity Protection concepts.
• Strong knowledge of networking fundamentals including TCP/IP, DNS, DHCP, SMTP, HTTPS, LDAP, VPNs, and web technologies.
• Experience with Windows, Linux/Unix, macOS, and server environments.
• Strong analytical, troubleshooting, communication, and stakeholder management skills.
• Ability to work independently and drive security initiatives to completion.

It Will Be a Plus If You Have

• Knowledge of Cloud Security (Azure, AWS, Google Cloud Platform).
• Knowledge with Vulnerability Management and Security Assessments.
• Security certifications such as:
  • CrowdStrike Certifications
  • CEH
  • CompTIA CySA+

Why Join Us?

If you are passionate about cybersecurity, threat hunting, detection engineering, and incident response, and want to work with a highly skilled global security team protecting a large enterprise environment, we invite you to join Hitachi Digital Cyber Defence Team and contribute to our mission of securing the future.

About us

We’re a global, 1000-stong, diverse team of professional experts, promoting and delivering Social Innovation through our One Hitachi initiative (OT x IT x Product) and working on projects that have a real-world impact. We’re curious, passionate and empowered, blending our legacy of 110 years of innovation with our shaping our future. Here you’re not just another employee; you’re part of a tradition of excellence and a community working towards creating a digital future.

Fostering innovation through diverse perspectives

Hitachi is a global company operating across a wide range of industries and regions. One of the things that sets Hitachi apart is the diversity of our business and people, which drives our innovation and growth.

We are committed to building an inclusive culture based on mutual respect and merit-based systems. We believe that when people feel valued, heard, and safe to express themselves, they do their best work.

How we look after you

We help take care of your today and tomorrow with industry-leading benefits, support, and services that look after your holistic health and wellbeing. We’re also champions of life balance and offer flexible arrangements that work for you (role and location dependent). We’re always looking for new ways of working that bring out our best, which leads to unexpected ideas. So here, you’ll experience a sense of belonging, and discover autonomy, freedom, and ownership as you work alongside talented people you enjoy sharing knowledge with.

We’re proud to say we’re an equal opportunity employer and welcome all applicants for employment without attention to race, colour, religion, sex, sexual orientation, gender identity, national origin, veteran, age, disability status or any other protected characteristic. Should you need reasonable accommodations during the recruitment process, please let us know so that we can do our best to set you up for success.

Experience Level

Senior Level