OT Endpoint Security Engineer (Senior) | Up to RM13K

Randstad Malaysia; Kuala Lumpur; On-site; MYR 180,000 - 260,000; Full time

Job summary

Randstad Malaysia is seeking a Senior OT Endpoint Security Engineer to safeguard OT infrastructure across global manufacturing sites. You will deploy, configure and maintain OT security solutions such as TXOne Stellar and MCS, while aligning with IT security practices and production constraints.

You will collaborate with regional teams, develop automation, and contribute to the OT security roadmap, ensuring compliance and robust incident response across heterogeneous environments.

Qualifications

• Bachelor's degree in CS/IT or related field.
• Hands-on with TXOne Stellar, Portable Inspectors or similar OT endpoints.
• Strong OT environment knowledge including legacy OS and segmentation.
• Knowledge of AV, EDR, app control and policy management.
• Scripting/automation using PowerShell or Python.
• Familiarity with Microsoft Defender ecosystem (MDE/XDR).
• Understanding ITSM processes (Incident, Problem, Change).
• Excellent English and cross-regional collaboration.
• Experience in multinational manufacturing or regulated OT is a plus.
• MCSE or MCSA certifications preferred.

Responsibilities

• Deploy and manage TXOne Stellar and OT endpoint security across sites.
• Maintain security baselines for OT endpoints, including legacy OS.
• Integrate OT telemetry and security alerts into central platforms.
• Develop automation for packaging, updates and remediation.
• Investigate security incidents and perform root cause analysis.
• Manage policies, allow/deny lists and signature tuning.
• Collaborate with OT/IT stakeholders and external partners.
• Maintain runbooks, diagrams and SOPs.
• Support audit readiness and security improvements.
• Contribute to OT security roadmap and Defender/XDR alignment.

Skills

OT environments knowledge

PowerShell/Python scripting

MD E/XDR familiarity

ITSM processes

English communication

Education

Bachelor's Degree in Computer Science/IT

Tools

TXOne Stellar

Portable Inspectors

Malware Check Stations

Job description

about the company

Our client is a globally established multinational organisation with a strong international presence across the technology and manufacturing sectors. With operations spanning multiple regions, the organisation places significant emphasis on operational excellence, technological innovation and maintaining robust cybersecurity standards across its global infrastructure.

The organisation offers an international working environment, providing opportunities to collaborate with cross-regional IT, cybersecurity and manufacturing teams.

about the job

We are looking for a Senior OT Endpoint Security Engineer to support and enhance the security of Operational Technology (OT) infrastructure across global manufacturing sites.

This role will focus on the engineering, deployment, configuration and operational management of OT endpoint security solutions, particularly TXOne Stellar, Portable Inspectors and Malware Check Stations (MCS).

The successful candidate will be responsible for maintaining secure endpoint configurations across production environments, including legacy operating systems and resource-constrained devices. You will also play an important role in troubleshooting security incidents, improving endpoint protection capabilities, automating operational processes and integrating OT security monitoring with the wider IT security ecosystem.

Key Responsibilities:

• Deploy, configure and manage TXOne Stellar, Malware Check Stations (MCS), Portable Inspectors and related OT endpoint security solutions across global manufacturing sites.

• Maintain and continuously improve security baselines for OT endpoints, including legacy operating systems, resource-constrained devices and production-critical clients.

• Integrate OT endpoint telemetry, health checks and security alerts into central monitoring platforms, dashboards and ITSM systems.

• Develop automation for routine operational activities, including software packaging, updates and remediation using scripting tools.

• Investigate and troubleshoot OT endpoint security incidents, conduct root-cause analysis and implement preventive measures.

• Manage security policies, allow/deny lists, application control and signature tuning to ensure stable security operations within production environments.

• Collaborate with internal OT/IT stakeholders, production teams and external integration partners to support deployments, upgrades and lifecycle management.

• Maintain technical documentation, including operational runbooks, architecture diagrams and standard operating procedures (SOPs).

• Support compliance, audit readiness and continuous security improvement initiatives.

• Contribute to the organisation's OT security roadmap and alignment with Microsoft Defender and XDR initiatives.

Requirements:

• Bachelor's Degree in Computer Science, Information Technology or a related discipline.

• Hands-on experience with TXOne Stellar, Portable Inspectors, Malware Check Stations or equivalent OT-focused endpoint security solutions.

• Strong understanding of OT environments, including legacy operating systems, network segmentation, production constraints and industrial safety considerations.

• Good knowledge of endpoint security technologies, including Antivirus (AV), Endpoint Detection and Response (EDR), application control/whitelisting, removable media governance and security policy management.

• Experience with scripting and automation using PowerShell, Python or similar technologies.

• Familiarity with the Microsoft Defender ecosystem, particularly Microsoft Defender for Endpoint (MDE) and Extended Detection and Response (XDR).

• Understanding of IT Service Management (ITSM) processes, including Incident, Problem and Change Management.

• Strong troubleshooting and problem-solving capabilities, with the ability to work closely with production teams and external service providers.

• Excellent English communication skills and the ability to collaborate with international stakeholders.

• Previous experience in multinational manufacturing environments or regulated OT environments will be advantageous.

• Relevant certifications such as MCSE or MCSA are preferred.

about the manager/team

You will report directly to the Head of Workplace Operations & IT Security and work closely with a diverse network of regional and global technology stakeholders.

The role involves close collaboration with global and APAC IT teams, cybersecurity specialists, enterprise architecture, major incident management, site services and production teams.

You will also engage with external technology integration partners to support OT security deployments, infrastructure improvements and ongoing operational activities.

This is an individual contributor position with opportunities to work on cross-functional projects in a multinational environment, engaging with stakeholders across the US, EMEA and APAC regions.

experience

5 years

skills

TXOne Stellar, portable inspectors, malware check status

qualifications

5+ years of experience in IT operations, with a focus on managing Endpoint Security in OT/Manufacturing environments

education

Bachelor Degree