Senior Security Platform Engineer (m/f/d)

Posted 3 Days Ago
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Hemel Hempstead, Dacorum, Hertfordshire, England, GBR
In-Office
Senior level
Cloud • Information Technology • Other • Security • Software
The Role
Lead and mentor a global 24/7 cybersecurity team to manage and optimize security platforms (SIEM/SOAR), perform threat hunting, incident response, vulnerability management, and ICS/SCADA monitoring. Drive automation, stakeholder collaboration, post-incident reviews, and continuous improvement of detection, remediation, and documentation for enterprise IT/OT environments.
Summary Generated by Built In

Make an impact at NTT Global Data Centers

Join NTT Global Data Centers and be part of a team that drives innovation and sustainability in the digital world. With over 150 data centers across more than 20 countries globally, we offer unparalleled opportunities to work on cutting-edge technology and transformative projects. Experience a collaborative, innovative, and inclusive workplace where your ideas are valued, and your growth is supported.

Your role at a glance

The Senior Security Platform Engineer (m/f/d), is an advanced subject matter expert, responsible for facilitating problem resolution and mentoring for the overall Global Data Centers Office of Information Security (GDC-OIS) team. This role is critical in improving, developing and maintaining IT/OT vulnerability management programs and processes.
This role performs and leads important tasks specialized at threat hunting, SIEM/SOAR, Network Security and other operational security tasks such as performance and availability monitoring, log monitoring, security incident detection and response, security event reporting, and content maintenance (tuning).

What we are looking for

Key Responsibilities:

•    Serves as a senior member of a 24/7 global GDC Cybersecurity team, providing leadership in IT/OT environments with required expertise in ICS and SCADA systems.
•    Leads the administration and optimization of enterprise security platforms, overseeing lifecycle management including break-fix, patching, version upgrades, and integration with broader security ecosystems.
•    Directs complex security incident response efforts across multiple vectors—endpoint protection, EDR, malware analysis, network and computer forensics—ensuring rapid containment and root cause analysis.
•    Designs and executes advanced vulnerability assessments using both automated and manual techniques; collaborates with stakeholders to prioritize remediation based on business risk and threat intelligence.
•    Oversees continuous monitoring of threat intelligence feeds and security alerts, proactively identifying emerging risks and recommending strategic countermeasures.
•    Interprets and synthesizes threat reports to guide architectural improvements and validate the effectiveness of current security controls.
•    Partners with cross-functional teams to develop and implement enterprise-wide mitigation strategies, configuration baselines, and patch management frameworks.
•    Champions automation initiatives to streamline incident response, threat detection, and reporting workflows, leveraging available security platforms and scripting.
•    Maintains and evolves the knowledge base by authoring and reviewing technical articles, playbooks, and SOPs to ensure consistency and operational excellence.
•    Leads post-incident reviews, driving service recovery, documentation, and implementation of preventive measures across teams and vendors.
•    Provides expert-level guidance on specialized security domains and technologies, ensuring comprehensive and efficient resolution of escalated incidents.
•    Ensures meticulous incident logging and fosters collaboration across internal teams, client IT environments, vendors, and carriers to expedite resolution.
•    Conducts advanced data correlation and threat hunting across diverse sources—network traffic, email logs, malware samples, web server logs, DNS records—to uncover stealthy threats and improve detection capabilities.
•    Leads strategic security projects, mentors junior engineers, and contributes to the evolution of the organization’s security posture through innovation and thought leadership.

Knowledge & Attributes:

•    Multiple years experience of working in IT and/or Security Operation centers required. Experience in a  Data Center environment an added plus.
•    Advanced expertise in architecting, implementing, and optimizing SIEM and security platforms across hybrid environments. Demonstrated leadership in ICS and SCADA security integration and monitoring within critical infrastructure.
•    Deep knowledge on security architecture, with hands-on experience designing and integrating multi-layered security solutions across diverse technology stacks.
•    Strategic customer engagement mindset with a proactive approach to anticipating security needs, influencing stakeholders, and driving continuous improvement in service delivery.
•    Recognized as a strategic problem solver with a track record of resolving complex security challenges independently and leading cross-functional teams through ambiguity.
•    Exceptional attention to detail in high-stakes environments, ensuring precision in threat detection, incident response, and documentation that supports audit and compliance.
•    Advanced analytical acumen with the ability to synthesize threat intelligence, correlate multi-source data, and drive actionable insights for risk mitigation.
•    Polished spoken and written communication skills with English as the preferred language.
•    Proven leadership in global security teams, fostering collaboration across departments, mentoring junior engineers, and driving alignment between security operations and business objectives.

Academic Qualifications & Certifications:
•    Bachelor's degree or equivalent in Information Technology or related field.
•    Relevant level of Security certifications such as CySA+, PenTest+, CCSP, GCIH, OSCP, CISM, CISSP etc. preferred.
•    Relevant level of IT certifications such as CCNA, CCNP, RHCSA, GRID, GICSP, AZ-500, SC-200, etc. will be added advantage.
Required Experience:
•    Advanced experience in Security technologies like (SIEM, PAM, IAM, PenTest, Threat Hunting, Firewall, Proxy etc.) preferably within a global IT services organization.
 

Who we are

As the third largest data center provider, we operate over 150 data centers in more than 20 countries and regions. We understand that every business – large and small – has its own unique needs and goals. We offer local-to-global data center expertise, aligned with our connected platform of AI-ready data centers to create solutions that enable our clients to seamlessly scale their digital businesses, anywhere and anytime.

Skills Required

  • Multiple years experience working in IT and/or Security Operation Centers (SOC)
  • Experience in a Data Center environment
  • Expertise in ICS and SCADA security integration and monitoring
  • Advanced expertise architecting, implementing, and optimizing SIEM and security platforms across hybrid environments
  • Advanced experience with security technologies such as EDR, PAM, IAM, Firewall, Proxy, Penetration Testing, and Threat Hunting
  • Hands-on incident response experience: endpoint protection, EDR, malware analysis, network and computer forensics
  • Designing and executing vulnerability assessments and remediation prioritization based on business risk and threat intelligence
  • Experience authoring and maintaining playbooks, SOPs, and technical documentation; leading post-incident reviews
  • Bachelor's degree or equivalent in Information Technology or related field
  • Relevant security certifications (e.g., CySA+, PenTest+, CCSP, GCIH, OSCP, CISM, CISSP)
  • Relevant IT certifications (e.g., CCNA, CCNP, RHCSA, GICSP, AZ-500, SC-200)
  • Proven leadership in global security teams and experience mentoring junior engineers
  • Strong spoken and written communication skills, English preferred
  • Experience with automation and scripting to streamline incident response, detection, and reporting workflows
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The Company
HQ: Tokyo
18,921 Employees

What We Do

NTT Ltd. is a leading, global technology services company. We’re here to enable the connected future. We come together to make the world a better place, and every day we use the power of technology to make it happen. We employ curious people who are ready to change the world. Through the work we do with our clients and in our communities, we find ways that technology can make a positive impact. We call it technology for good. That’s our focus and it extends well beyond the bottom line. We believe in using technology for good. This means helping organizations and society transform and move into the future with a partner they can trust. At the heart of our business are relationships built on loyalty, commitment and a shared belief in what’s possible when we work together: a better world for us all to live in. Working with organizations around the world, we achieve business outcomes through intelligent technology solutions. For us, intelligent means data driven, connected, digital and secure. Through our full range of unparalleled capabilities, we empower people, strategy, operations and technology, while our platforms provide a single view across hybrid environments. This gives our clients better insight to make the right decisions at the right time and achieve their business modernization and transformation goals. A new idea becomes a great idea when it helps to make the world a better place. We’re constantly innovating. It is, and always has been, the essence of what sets us apart. We harness the collective effort of our people, together with external innovators and innovations, to drive excellence through the technologies we integrate and the services we deliver. Technology enables connection. And connections create understanding. The result is connected cities, factories, healthcare, agriculture, conservation, and even connected sport. Together we enable the connected future. Everything is iNTTerconnected.

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