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Distributed Control System (DCS) & Instrumentation Engineer - Yokogawa

On-site Full-time

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Experience Level

Mid to Senior

Qualifications

Ideal Candidate ProfileBachelor’s degree in Instrumentation & Control, Electrical Engineering, Electronics, or a similar engineering discipline.5–10 years of hands-on experience in process automation, particularly with Yokogawa DCS/SCADA systems within water, wastewater, or comparable processing environments. Demonstrated experience in commissioning, troubleshooting, and diagnostics of Profibus DP/PA. Robust background in instrumentation for sewage treatment processes, including exposure to hazardous and corrosive environments (H₂S-prone areas). Knowledge of Safety Instrumented Systems (SIS) and Emergency Shutdown (ESD) systems (e.g., ProSafe-RS), alarm management, loop tuning, and historian/reporting tools. Experience with Computerized Maintenance Management Systems (CMMS) and Information Management Systems (IMS).

About the job

Why This Role Is Crucial?

  • The Distributed Control System (DCS) & Instrumentation Engineer plays a pivotal role in ensuring the safe, reliable, and efficient operation of the sewage treatment plant. This position is responsible for the proper functionality of all automation, control systems, and instruments, thereby safeguarding people, the environment, and optimizing plant performance.

Key Responsibilities

As a DCS & Instrumentation Engineer with extensive experience in Yokogawa DCS (such as CENTUM/Prosafe) and SCADA systems, you will have full accountability for process control, instrumentation asset reliability, and industrial communications. Your primary focus will be on maintaining the health and efficiency of Profibus (DP/PA) networks. The ideal candidate will possess a background in corrosive and H₂S-prone sewage treatment plant environments, ensuring compliance with safety regulations and continuous operational optimization.

  • DCS / SCADA & Control Systems
    • Administer, operate, and enhance Yokogawa DCS, including control strategies, graphics, alarms, trends, historian tags, and backup/restore operations.
    • Enhance SCADA interfaces, dashboards, and reporting systems for Operations & Maintenance (O&M) and compliance Key Performance Indicators (KPIs).
    • Develop, test, and implement logic modifications (such as loop tuning, interlocks, permissives, and sequences) adhering to strict Management of Change (MOC) protocols.
    • Oversee alarm rationalization and limit settings to minimize nuisance alarms and boost operator efficiency.
    • Coordinate factory and site acceptance testing (FAT/SAT) for modifications and expansions to control systems.
  • Instrumentation
    • Manage the lifecycle of field instruments including selection, installation, calibration, loop checks, diagnostics, and replacements.
    • Involved devices typically include DO, pH/ORP, turbidity/SS, ammonium/nitrate, chlorine, flow (magnetic/ultrasonic), pressure, level (radar/ultrasonic), vibration, temperature, and gas detection.
  • Profibus DP/PA & Industrial Communication
    • Ensure the reliability of Profibus DP/PA networks by focusing on topology design, segment diagnostics, termination, shielding/earthing, redundancy, spur lengths, baud rates, device addressing, and GSD management.
    • Utilize diagnostic tools (e.g., bus analyzers) to detect noise, reflections, voltage drops, telegram errors, and intermittent faults.
    • Integrate field devices via Profibus PA couplers/links, gateways, and interfaces with Yokogawa DCS/SCADA; maintain device libraries.
    • Collaborate with electrical and control teams to mitigate EMI and uphold proper cable routing and panel/earthing standards.
    • Support interfaces with MCCs/VFDs, PLC skids, and plant SCADA/IMS/CMMS systems.
  • Safety, Compliance & Cybersecurity
    • Ensure all DCS/SIS activities align with plant safety standards, IEC standards, and cybersecurity policies.
    • Enhance operational technology (OT) cybersecurity postures in collaboration with relevant teams.

About BESIX Group

Six Construct, a subsidiary of the BESIX Group, stands as the largest Belgian construction firm operating in the Middle East. The company fuses the talents of a highly skilled workforce with strategic planning and cutting-edge technology to tackle some of the most intricate business challenges. Operating across various sectors, including the construction of commercial and residential buildings, sports and leisure facilities, infrastructure, and marine-related projects, Six Construct employs around 4,000 individuals in the Middle East and a total workforce of 10,000 globally.

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