Control Engineer

Renco Group; Riyadh; Remote; SAR 180,000 - 320,000; Full time

Job summary

Renco Group in Saudi Arabia is seeking a Field Service Engineer - Control Engineer to provide on-site expertise for installation, commissioning, maintenance, and retrofits of GE Mark series turbine control systems in heavy-duty turbines and related packages.

The role requires strong experience with Mark V/VI/VIe hardware, Toolbox/ToolboxST, and instrumentation networks, with a focus on safety and outage delivery. You will coordinate with clients on site and support legacy migrations.

Qualifications

• Bachelor's degree in Mechanical or Industrial Engineering; significant, direct field experience may be substituted.
• Minimum of 5 years of experience as a Field Service Engineer, Technical Advisor, or Millwright working with heavy rotating equipment.

Responsibilities

• Site pre-commissioning, cold loop checks, hot loop checks, signal verification, turbine first-fire sequences, synchronization, full-load testing.
• Configure, upload/download, debug, and verify application software using Toolbox and ToolboxST across Mark VI and Mark VIe platforms.
• Configure, calibrate, and troubleshoot field instrumentation, servo valves, LVDTs, RTDs, thermocouples, 4-20 mA transducers, and actuators.
• Configure and support HMI systems (Cimplicity, iFix), network switches, and communications links (Modbus, Profibus).
• Diagnose alarms, hardware faults, network latency, trip events, and run-up logic under outage deadlines.
• Support legacy migration projects (Mark IV/Mark V to Mark VIe) including cabinet terminations and I/O verification.
• Generate FSRs, punch lists, redline drawings, and ensure LOTO/PTW and OSHA compliance.

Skills

GE Mark V/VI/VIe knowledge

P&ID reading

Electrical diagrams

Field instrumentation

Education

Bachelor's Degree in Mechanical or Industrial Engineering

Tools

GE Toolbox

ToolboxST

Cimplicity

iFix

Modbus/TCP

Profibus/Foundation Fieldbus

Job description

Work location:

Sector:

Sector: Other

Role:

Role: Other

Date of last update:

Date of last update: 10/11/2026

Renco S.p.A. is a leading international engineering and construction firm with over 40 years' experience. We deliver innovative, sustainable solutions, prioritizing collaboration, technology, and a diverse, inclusive workplace We're dedicated to a better future, fostering talent through professional growth opportunities.

Scope of Work

The Field Service Engineer - Control Engineer will provide on-site technical expertise for installation, commissioning, maintenance, troubleshooting, and retrofits of rotating equipment control systems. The primary focus of this role involves deploying, calibrating, and upgrading General Electric (GE) Mark series turbine control systems (specifically Mark V, Mark VI, and Mark VIe / Mark VIeS) applied to heavy-duty gas turbines, steam turbines, and associated generator/compressor packages.

Duties & Responsibilities

• Execute complete site activities including pre-commissioning, cold loop checks, hot loop checks, signal point-to-point verification, turbine first-fire sequences, synchronization, and full-load testing;
• Modify, upload/download, debug, and verify application software using Toolbox and ToolboxST across Mark VI and Mark VIe controller platforms;
• Configure, calibrate, and troubleshoot field instrumentation, servo valves, LVDTs (Linear Variable Differential Transformers), RTDs, thermocouples, 4-20 mA transducers, and electro-hydraulic actuators;
• Configure and support Human-Machine Interfaces (Cimplicity, iFix), auxiliary network switches, UDH/PDH Ethernet networks, Modbus (RTU/TCP), and Profibus/Foundation Fieldbus communication links;
• Diagnose software alarms, controller hardware faults, network latency issues, trip events, and turbine run-up logic discrepancies under tight outage deadlines;
• Support legacy control migration projects (e.g., Mark IV / Mark V to Mark VIe conversions), including cabinet terminations, I/O verification, and legacy sequencing translations;
• Generate daily progress reports, trip investigations, punch lists, redline electrical drawings, and technical field service reports (FSR). Adhere strictly to site-specific Lockout/Tagout (LOTO) protocols, Permit to Work (PTW) requirements, and OSHA/industry safety standards.

Required Competences

• Hands-on operational and engineering knowledge of GE Mark V, Mark VI, and Mark VIe hardware (including controller racks, power distribution modules, terminal boards, and I/O packs).
• Practical experience using GE Control System Toolbox and ToolboxST for logic configuration, trend creation, sequence editing, and alarm diagnostics;
• Strong grasp of gas and steam turbine operating philosophies (speed/load control, fuel stroke reference [FSR], start-up sequences, acceleration control, temperature control/exhaust spreads, and turbine protection/trip logic);
• Knowledge of Ethernet topologies, TCP/IP, Modbus, Profibus, and proprietary GE UDH (Unit Data Highway) and PDH (Plant Data Highway) architectures;
• Advanced ability to read and redline Piping and Instrumentation Diagrams (P&IDs), Instrument Loop Diagrams (ILDs), single-line diagrams, and wiring schematics.

Qualifications

• Bachelor's Degree in Mechanical Engineering, Industrial Engineering, or a related technical discipline. (Significant, direct field experience may be substituted for formal education);
• Minimum of 5 years of experience as a Field Service Engineer, Technical Advisor, or Millwright working specifically with heavy rotating equipment.