Senior Resident Engineer

3 days ago

Riyadh, Ar Riyāḑ, Saudi Arabia Salt Full time

Job Title: Senior OT/ICS Resident Engineer

Location:
Saudi Arabia

Employment Type:
Permanent

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
    IEC 62443, NIST, and ISO 27019
    .
  • 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 the
    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).
  • 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
  • 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.

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