OT Cybersecurity Field Engineer - Commissioning (Qatar)

HW3; Doha; On-site; QAR 437,000 - 655,000; Full time

Job summary

HW3 is seeking an OT Cybersecurity Engineer to support site activities in Qatar, securing industrial control systems during FAT/SAT, commissioning, and early operations on a major QatarEnergy project. You will implement on-site cybersecurity measures, verify firewall configurations, segmentation, and access controls, and collaborate with field teams to meet IEC 62443 requirements.

Strong DeltaV experience and proven site commissioning in OT cybersecurity are essential; IT-only backgrounds are

Qualifications

• Strong knowledge of OT cybersecurity appliances and techniques used in DeltaV and similar platforms.
• Solid understanding of OT cybersecurity architecture and controls.
• Experience with IEC 62443 and oil & gas OT cybersecurity specifications.

Responsibilities

• Provide on-site OT cybersecurity implementation, verification, and compliance during FAT/SAT and commissioning.
• Verify firewall configurations, network segmentation, zone/conduit design, endpoint hardening, and access controls.
• Support integration between control systems and security tools (firewalls, IDS, endpoint protection).
• Execute cybersecurity test cases, support vulnerability remediation follow-up, and close punch-list items.
• Ensure alignment with IEC 62443 and customer OT cybersecurity requirements.
• Provide broader cybersecurity consulting: assessments, remediation planning, and installation/tuning of cybersecurity solutions.
• Interface with field support engineers, regional offices, and expert resources to resolve issues.
• Participate in customer workshops regarding cybersecurity evaluations.

Skills

OT cybersecurity

DeltaV know-how

OT architecture & controls

IEC 62443

Site commissioning

Communication skills

Tools

DeltaV

Firewalls

IDS

Endpoint protection

Switches

VLANs

Job description

HW3 is seeking an OT Cybersecurity Engineer to support site activities in Qatar, securing industrial control systems during FAT/SAT, commissioning, and early operations on a major QatarEnergy project. You will implement on-site cybersecurity measures, verify firewall configurations, segmentation, and access controls, and collaborate with field teams to meet IEC 62443 requirements.

Strong DeltaV experience and proven site commissioning in OT cybersecurity are essential; IT-only backgrounds are