Senior OT/ICS Resident Engineer

Salt Digital Recruitment; As Sudiyah; On-site; OMR 20,000 - 25,000; Full time

Job summary

Salt Digital Recruitment is seeking an Operational Technology (OT) / Industrial Control Systems (ICS) Resident Engineer in Oman to provide on-site expertise for critical industrial environments. Candidates should have over 5 years of experience in OT support and a solid grasp of cybersecurity practices.

The role includes responsibilities such as managing industrial networks, assisting in incident responses, and collaborating closely with IT security teams. A strong understanding of control systems and networking concepts is essential for this position.

Qualifications

• 5+ years of experience supporting OT/ICS environments.
• In-depth understanding of IP networking concepts.
• Excellent analytical and troubleshooting abilities.

Responsibilities

• Provide daily operational support for OT and ICS environments.
• Manage and maintain industrial networks and communication links.
• Assist in incident detection and recovery activities.

Skills

Operational Technology support

IP networking concepts

Control system architectures

Linux environments

Scripting languages (Python, Shell)

OT cybersecurity practices

Tools

Docker

SIEM platforms

Industrial control systems protocols

Job description

About the Role

We are seeking a highly capable Operational Technology (OT) / Industrial Control Systems (ICS) Resident Engineer to provide on-site technical expertise, system support, and cybersecurity oversight for critical industrial environments. This role requires a hands‑on professional with a strong understanding of OT networks, control systems, and cybersecurity principles, capable of bridging the gap between IT and OT operations.

Key Responsibilities

• Provide daily operational support for OT and ICs environments, ensuring system availability, stability, and security.
• Manage, monitor, and maintain industrial networks, including switches, firewalls, and communication links between control systems.
• Support incident detection, response, and system recovery activities within the OT network.
• Assist in system patching, configuration management, and change control processes across multiple vendor environments.
• Participate in cybersecurity assessments and deployment of monitoring solutions aligned with frameworks such as IEC62443, NIST, and ISO27019.
• Conduct system performance reviews, vulnerability checks, and provide recommendations for improved operational resilience.
• Maintain technical documentation, configuration records, and OT asset inventories.
• Collaborate closely with IT security, engineering, and operations teams to ensure secure integration of technologies.

Technical Skills & Experience

• 5 years plus of experience supporting OT/ICS environments (e.g., energy, utilities, manufacturing, oil & gas, or critical infrastructure).
• In-depth understanding of IP networking concepts, including OSI and Purdue models, VLANs, routing, and network segmentation.
• Strong familiarity with ICs protocols (Modbus, DNP3, OPC, Profibus, etc.) and control system architectures (SCADA, PLC, DCS).
• Experience working with Linux environments (command-line proficiency), containerized systems (Docker), and automation/scripting languages such as Python or Shell.
• Exposure to SIEM platforms and log management tools for monitoring OT environments.
• Knowledge of industrial vendors and technologies (e.g., Siemens, ABB, Schneider Electric, Honeywell).
• Solid grasp of OT cybersecurity practices including network segmentation, asset visibility, and anomaly detection.
• Excellent analytical and troubleshooting abilities, with strong communication and stakeholder management skills.

Salt is acting as an Employment Agency in relation to this vacancy.