Field Service Engineer – Cybersecurity, Cheonan

Technology, Data & Digital · IT Infrastructure & Security · Cybersecurity · DevOps

In short

As a Field Service Engineer for Cybersecurity at ABB in Cheonan, South Korea, you will execute complex service work on Distributed Control System (DCS) environments. You will design, implement, and integrate cybersecurity solutions including WSUS, NAC, NAS, SIEM, and firewalls, ensuring customer satisfaction and identifying new business opportunities. This onsite role requires business-level English and fluency in Korean, with frequent travel.

Responsibilities

Design and implement integrated cybersecurity solutions for DCS environments.
Architect and deploy security systems using technologies like WSUS, NAC, NAS, SIEM, FIREWALL/UTM, and patch management.
Plan and execute service work as per customer order and expectations.
Ensure customer retention by delivering superior customer experience.
Identify new service business opportunities for ABB.
Coach technicians and engineers and supervise complex site activities.
Design and specify integrated DCS cybersecurity solutions aligned with IEC 62443 and NIST standards.
Implement and integrate cybersecurity systems including system hardening and secure configuration.
Manage patching strategies and secure access in OT environments.
Support end-to-end deployment, testing, and commissioning of security solutions.
Prepare technical documentation and design artifacts.

Requirements

Minimum 2 years of experience in DCS/PLC security engineering, cybersecurity, or related industrial automation security roles.
Solid knowledge of DCS security platforms and hands-on experience with WSUS, NAC, NAS, SIEM, FIREWALL /UTM, and network security technologies.
Strong background in industrial cybersecurity standards: IEC 62443, NIST Cybersecurity Framework.
Proven experience in system integration, threat assessment, security architecture design, vendor management, and DCS/PLC security hardening.
Practical skills in network security, access control, encryption, vulnerability management, and incident response.
Business-level proficiency in English (verbal and written) and fluency in Korean.
Willingness to travel frequently to domestic sites (over 60%).

Desired Qualifications

Experience of network and security design across power plants, KDHC is preferred.

Benefits

Contribute to customer satisfaction.
Deliver superior customer experience.
Opportunity to identify new service business opportunities.
Coach technicians and engineers.
Support to grow.
Proud of the impact we create together.

Skills

WSUSNACNASSIEMFIREWALL/UTMpatch managementDCSPLCnetwork securityIEC 62443NIST Cybersecurity Frameworksystem integrationthreat assessmentsecurity architecture designaccess controlencryptionvulnerability managementincident response

#Cybersecurity#DCS#Industrial Automation#Field Service

About ABB

We are a technology leader in electrification and automation, enabling a more sustainable and resource-efficient future.

ABB is a technology leader in electrification and automation, enabling a more sustainable and resource-efficient future. The company’s solutions connect engineering know-how and software to optimize how things are manufactured, moved, powered and operated. Building on more than 130 years of excellence, ABB’s ~105,000 employees are committed to driving innovations that accelerate industrial transformation. www.abb.com\nPrivacy notice & house rules: https://social.abb/social-media-information\n\nBefore applying for a job at ABB , please read our Fraud Warning:…

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