OT SCADA Cybersecurity Engineer | Mekdam Holding Group | Qatar

Mekdam Holding Group; Qatar; On-site; QAR 391,000 - 614,000; Full time

Job summary

Mekdam Holding Group in Qatar seeks an OT SCADA Cybersecurity Engineer with 6–10 years of SCADA/ICS security experience to lead defense of SCADA networks, HMIs, RTUs, and PLCs in industrial environments such as Oil & Gas or petrochemical facilities.

You will collaborate with automation engineers, SCADA architects, and industrial IT teams to harden devices, secure protocols, monitor threats, perform vulnerability assessments, and drive patching, backups, and incident response according to IEC

Qualifications

• 6–10 years of professional experience in SCADA security and ICS within Oil & Gas or Petrochemical sectors.
• Bachelor’s degree in Automation & Control Systems or related discipline.
• Strong understanding of SCADA architectures, HMIs, PLCs, and RTUs.
• Experience with industrial communication protocols (Modbus TCP, DNP3, IEC 60870-5-104, OPC UA).
• Familiarity with IEC 62443 and NIST SP 800-82 standards and security monitoring tools.

Responsibilities

• Design and secure SCADA network infrastructures and control room environments.
• Harden HMIs, RTUs, and PLCs against cyber threats.
• Configure secure industrial protocols, VPNs, and encrypted links across SCADA nodes.
• Monitor SCADA telemetry, alarms, and historian databases for anomalies.
• Conduct vulnerability assessments and security testing for SCADA software and field devices.
• Collaborate with SCADA programmers and plant operators during system updates.
• Implement backups and disaster recovery procedures for SCADA master stations.
• Maintain SCADA diagrams, hardening checklists, and incident runbooks.
• Ensure compliance with IEC 62443 and NIST guidelines and safety regulations.
• Provide Tier-2/3 support for SCADA security incidents.

Skills

SCADA security

Industrial control systems

Network security monitoring

Industrial cybersecurity standards

Troubleshooting/problem-solving

Education

Bachelor’s degree in Automation & Control Systems

Tools

Siemens WinCC

Rockwell FactoryTalk

Wonderware InTouch

Schneider EcoStruxure

Job description

Position Summary:

Mekdam Holding Group is seeking an experienced, highly technical, and accomplished OT SCADA Cybersecurity Engineer with 6 to 10 years of SCADA and industrial control systems cybersecurity experience to join our client engagement team on a full-time, permanent basis in Qatar (preferably within Oil & Gas, Petrochemical, or industrial processing environments). In this specialized SCADA security role, you will spearhead securing Supervisory Control and Data Acquisition (SCADA) networks, human-machine interfaces (HMIs), remote terminal units (RTUs), and programmable logic controllers (PLCs) against cyber threats. You will work closely with automation engineers, SCADA architects, and industrial IT teams to guarantee continuous plant visibility and control integrity. Ideal candidates bring a robust academic degree in automation or computer science, deep practical mastery of SCADA protocols, industrial firewalls, and immediate availability for deployment in Qatar.

Detailed Job Description:

As an OT SCADA Cybersecurity Engineer at Mekdam Holding Group in Qatar, you will take full ownership of SCADA network defense, HMI/PLC security hardening, and real-time industrial threat monitoring. Your day-to-day responsibilities encompass securing SCADA master terminal units (MTUs), configuring secure communication tunnels for RTUs, auditing PLC logic for security vulnerabilities, and deploying industrial intrusion detection systems. You will collaborate with cross-functional industrial operations teams to execute patch management, investigate SCADA communication anomalies, and maintain network resilience. Working in a fast-paced industrial environment in Qatar, you will drive SCADA cybersecurity excellence.

Key Responsibilities:

• Design, implement, and secure Supervisory Control and Data Acquisition (SCADA) network infrastructures and control room environments.
• Harden Human-Machine Interfaces (HMIs), Remote Terminal Units (RTUs), and Programmable Logic Controllers (PLCs) against cyber threats.
• Configure secure industrial communication protocols, VPN tunnels, and encrypted serial links across distributed SCADA nodes.
• Monitor SCADA telemetry, alarming systems, and historian databases for unauthorized access or anomalous control commands.
• Conduct regular vulnerability assessments and security penetration testing specifically tailored for SCADA software and field devices.
• Collaborate proactively with SCADA programmers, instrumentation engineers, and plant operators during system updates.
• Implement robust backup and disaster recovery procedures for SCADA master stations and configuration databases.
• Maintain comprehensive SCADA network architecture diagrams, device hardening checklists, and incident runbooks.
• Ensure strict adherence to industrial cybersecurity standards (IEC 62443, NIST SP 800-82) and oil & gas safety regulations.
• Provide tier-2 and tier-3 technical support for SCADA security troubleshooting and incident remediation.

Required Qualifications & Skills:

• Bachelor’s degree in Automation & Control Systems, Industrial Control Systems, Cybersecurity, Computer Science Engineering, or a related discipline.
• Minimum 6 to 10 years of professional working experience in SCADA security and industrial control systems within Oil & Gas or Petrochemical sectors.
• Strong technical proficiency and hands‑on operational mastery of SCADA architectures, HMIs, PLCs, and RTUs.
• Solid understanding of industrial communication protocols (Modbus TCP, DNP3, IEC 60870-5-104, OPC UA).
• Proven experience deploying industrial security monitoring tools and securing SCADA master station operating systems.
• Strong analytical problem‑solving capabilities and clear technical communication skills.
• Professional availability for full-time employment in Qatar (Application email: [e-mail]).

Nice-to-Have Skills:

• Professional certifications such as GICSP, Certified SCADA Security Professional (CSSP), or CISSP.
• Hands‑on experience with SCADA vendor platforms (Siemens WinCC, Rockwell FactoryTalk, Wonderware InTouch, Schneider EcoStruxure).
• Prior working experience in oil & gas pipeline monitoring centers, refineries, or petrochemical complexes across the GCC.
• Advanced scripting proficiency in Python or VBA for SCADA data logging and automation.
• Bilingual proficiency in English and Arabic.

Job Details:

• Salary/Rate: Competitive and commensurate with experience
• Deadline: Open until filled
• Notice Period: Immediate to short notice preferred
• Contract Duration: Permanent / Full-Time (Qatar)