OT Field Engineer

Overview

As an OT Field Engineer, your primary focus will be the maintenance, repair, and commissioning of operational technology (OT) hardware, systems, and networks. Diagnostics, repair and replacement of OT field hardware (telemetry outstations and associated I/O modules, power supplies, PLCs and HMIs, industrial control systems, modems, routers and switches). Undertake minor modifications to process automation and control systems to support regulatory compliance and process continuity.

Undertake preventive maintenance activities on OT field hardware, systems/networks. Perform firmware and software upgrades/patching of OT equipment to maintain security controls and compliance. Support Water and Water Recycling operational teams during planned maintenance activities to ensure OT assets are correctly shut down and brought back online to mitigate operational impact. Undertake site surveys, installation and commissioning of OT hardware, systems and networks.

Perform minor PLC modifications and Telemetry IO wiring changes to support the introduction of new instrumentation and plant. Provide technical on-site support to OT framework partners for the service integration of new, and/or modified OT field hardware, software, systems, and networks. Undertake post installation quality assurance audits of new, or modified OT installations to ensure they adhere to defined standards.

• Ideally be educated to HNC/HND (or equivalent) level or have time served experience in maintenance, commissioning or field service of electrical, instrumentation or telecommunications systems with a City and Guilds /NVQ level 3 electrical qualification.
• Experience of, and or formal training in programming and fault finding of Programmable Logic Controller (PLC) or process control equipment would be an advantage, alongside some of the following;
• Ideally educated to at least ONC/HNC level in Electrical, Electronic, or Control Engineering (or equivalent experience).
• Practical experience with the maintenance and repair of telemetry outstation hardware and software.
• Proven ability to methodically troubleshoot and resolve complex technical problems across integrated hardware and software systems.
• Demonstrated understanding and knowledge of PLC and HMI hardware and software, with specific experience in vendor platforms such as Rockwell and/or Schneider Electric.
• Familiarity with site-level SCADA systems, ideally including Rockwell platforms.
• Understanding and knowledge of industrial control networks and protocols (e.g., Ethernet, Fieldbus, RS232/485).
• Understanding of IP networking principles (Ethernet/LAN/WAN) and IP addressing fundamentals.
• Knowledge of communication technologies relevant to dispersed sites (e.g., radio, mobile, ADSL).
• Familiarity with industrial (OT) cybersecurity principles and controls.
• Good working knowledge of DC/AC supplies, Uninterruptible Power Supply (UPS) systems, and Low Voltage (LV) electrical distribution installations.