Senior Cybersecurity Architecture and OT Specialist

NEOM Green Hydrogen Company; Tabuk Province; On-site; SAR 150,000 - 200,000; Full time

Job summary

A leading renewable energy company in Saudi Arabia is seeking a Senior Cybersecurity Architecture and OT Specialist to design secure IT and OT infrastructures. The role requires over 5 years of experience and involves threat modeling, risk assessments, and collaboration with project teams. Candidates must possess a relevant degree and certifications in cybersecurity. This full-time position is pivotal in ensuring compliance with security frameworks across operations.

Qualifications

• 5+ years of experience in architecture or OT cybersecurity.

Responsibilities

• Design and evaluate secure architecture for IT/OT integration.
• Conduct threat modeling and architecture risk assessments.
• Ensure secure network zoning and segmentation.

Skills

Secure architecture for ICAS/SCADA

Technical advisory capabilities

Documentation management

Flexibility in different environments

Education

Bachelor’s degree in Cybersecurity, Engineering, or Computer Science

Certifications: IEC 62443, SABSA/TOGAF, GICSP, or CISSP

Job description

Senior Cybersecurity Architecture and OT Specialist

NEOM Green Hydrogen Company Limited (NGHC)

NEOM Green Hydrogen Company (NGHC) is on a mission to make a carbon‑free, climate‑safe future a reality. We are building the world’s largest plant to produce green ammonia at scale, providing humankind with a cost‑efficient solution that will accelerate the worldwide green hydrogen economy. Located in NEOM and supporting Saudi Arabia’s Vision 2030, NGHC will be integrating up to 4GW of onshore solar and wind energy to supply up to 650 tons of green ammonia per day for transportation globally. Operations will go onstream in 2026. NGHC brings together the technology, operational efficiency and know‑how of ACWA Power, Air Products and NEOM in a joint‑venture partnership with over 80 years of combined experience in the fields of hydrogen, energy, renewables and global networks.

Job Details

Division: Cybersecurity Architecture & OT

Reports To: Cybersecurity Architecture and OT Manager

Position Summary

The Cybersecurity Architecture and OT Architect specialist is responsible for designing secure IT and OT infrastructure, ensuring all architecture artifacts meet security and regulatory requirements. The role focuses on providing expert advice on secure configurations and technology solutions for industrial and enterprise systems.

Nature & Scope

The Cybersecurity Architecture and OT Architect Specialist operates at a tactical and technical level, responsible for designing, reviewing, and implementing secure architecture for both enterprise IT systems and OT/ICS environments. The role is focused on evaluating system designs for cyber risks, ensuring compliance with applicable cybersecurity frameworks, and supporting the secure integration of industrial systems with IT infrastructure. It provides subject matter expertise and hands‑on design guidance in architecture development efforts.

Key Responsibilities (High‑Level)

• Design and evaluate secure architecture for IT/OT integration
• Conduct threat modeling and architecture risk assessments
• Ensure secure network zoning and segmentation for ICAS/SCADA
• Support secure design documentation, diagrams, and reviews
• Advise project and engineering teams on cybersecurity best practices
• Align architecture with relevant standards (IEC 62443, TOGAF, SABSA)
• Collaborate with vendors and integrators on technical security solutions

Job Purpose / Role

To support secure design, architecture review, and implementation of cybersecurity controls across IT and OT environments, ensuring alignment with regulatory, business, and technical requirements.

Principal Duties and Responsibilities

• Develop secure architecture designs and documentation for IT and OT systems
• Conduct threat modeling and risk assessments on new and existing solutions
• Map architecture designs against IEC 62443, NIST 800‑82, and TOGAF standards
• Provide consultation on secure network segmentation, DMZs, and zoning for OT
• Advise on secure integration of legacy ICAS systems with modern IT networks
• Review configurations of PLCs, HMIs, RTUs, and field devices
• Collaborate with project teams, vendors, and system integrators
• Develop detailed design documents, configuration templates, and security diagrams
• Participate in vulnerability assessments and remediation planning

Skills / Technical Knowledge Areas

• Well‑organized in maintaining documentation and secure design templates
• Self‑initiator with strong technical advisory capabilities
• Knowledge and applied experience in secure architecture for ICAS/SCADA and enterprise systems
• Flexibility to work across different sites, including field/plant environments

Essential Education Qualifications Required

• Bachelor’s degree in Cybersecurity, Engineering, or Computer Science
• Certifications: IEC 62443, SABSA/TOGAF, GICSP, or CISSP

Minimum Years Experience in Similar Job Role

• 5+ years of experience in architecture or OT cybersecurity

Seniority Level

Mid‑Senior level

Employment Type

Full‑time

Job Function

• Information Technology

Industries

• Renewable Energy Power Generation and Chemical Manufacturing