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Job roles of Instrumentation Engineer

As an Instrumentation engineer this article is specifically made for you, you will find a detailed explanation of the Job roles of an Instrumentation Engineer.

Generally speaking, you can find instrument engineers in two types of workplaces/fields as given below.

  • Operation and Maintenance Field (Plant or Industry)
  • Design Field (EPC Companies)

As per the working place, the role of an instrumentation engineer is divided into two categories. I am not saying that these two job roles are fixed for all instrumentation engineers.

The job roles of instrumentation engineers also vary from company to company. In this article, I will show you what you should generally expect as an instrumentation engineer and what you will need to do in your professional life.

Job roles of Instrumentation Engineer according to the job field

1. Operation and Maintenance Field

  • Execute Instrumentation Maintenance tasks of DCS, PLC, Analyzers & Field Instrumentation, etc. with quality
  • Review maintenance activities, and prioritize critical jobs. Carry out scheduled and chance-based maintenance of instrumentation equipment.
  • Ensure compliance with standards, procedures, and best practices
  • Conduct regular Troubleshooting and root cause analysis
  • Facilitate and support minor projects
  • HSEF compliance (RESOP, MIQA, CFA, DOSHE mandatory training).
  • Assist Manager in spares inventory management to maintain stock levels & issuing Spares for job execution.
  • Assist Manager in procurement and follow up with vendors, purchases, and stores.
  • Assist Manager in shutdown planning, budgeting, and execution.
  • Carry out a risk assessment and adhere to all the safety norms in routine and shutdown jobs.
  • Prepare audit-related documents for the manager
  • Participate in Reliability & Integrity studies as identified
  • Conduct obsolescence management
  • Collaborate data for performance monitoring and reporting
  • Implementation of recommendations
  • Execute PM/PdM schedules
  • Carry regular LLF visits in the plant to identify potential failures
  • Maintain history/ records
  • Weekly preparation of maintenance KPIs of Instrumentation.
  • Maintaining IMS documents for Instrumentation Maintenance
  • Providing technical guidance, and training to subordinates.

2. Design Field

  • Hookup Diagram
  • Inst. Location Layouts
  • Cable Route layout
  • Cable Schedule
  • JB interconnection wiring diagram
  • Cable Tray layouts
  • Control room layouts
  • Cable and Junction Box Schedule
  • Wiring and Interconnection drawings
  • Hygienic Instruments and Fittings
  • Functional loop schematics
  • Loop Wiring Diagram
  • Instrument Index and IO list preparation
  • Shutdown narratives and Logic Diagrams
  • MTO, Tender
  • CAPEX support
  • Inter-Disciplinary Activities – P&ID review and update,
  • 3-D Model review, IDR/IDC
  • Participation in HAZOP / SIL Reviews
  • Hands-on Experience following design Calculations; Inst. Sizing – Control Valve Sizing (InstruCalc, CONVAL), Flow meter sizing, Safety valve sizing, Air and power consumption calculations, Intrinsic safety validation calculation, Thermowell Wake freq. calculations
  • Instrument Selection – All types of field instruments. Exposure to a selection of instruments and systems for Hazardous areas. Experience in preparation/review/approval of the mine
  • following procurement deliverables; Material Requisition, TBE, Purchase Requisition, and Vendor Drawing Review and approvals
  • Control Systems – DCS, ESD (SIS), PLCs, package control systems, Fire & Gas Systems (FGS). Must have worked as Lead Instrumentation Engineer for mid to large scale Chemical / Petrochemical / Oil & Gas projects
  • Estimation of engineering efforts, Monitoring and control of departmental cost and schedule, Client meetings and reviews, Site surveys, and reports
  • Smart plant instrumentation


In the end, my recommendation is to search each and every bullet point given above and start gathering knowledge. This will be helpful in getting the job.

From my side, I will try to cover all the topics in my next articles. So, stay connected.

I hope these resources and Knowledge will become helpful to you in the future. And I continue to make this type of resource and knowledge-sharing posts on my website.

And if you have any suggestions then feel free to ask in the comments and through email id. want to write an article on the website, don’t hesitate to get in touch with us by this mail id: contact@worldofinstrumentation.com

I hope you like this article, you can also like my previous article on Industrial Level Measurement.

And you can also follow our LinkedIn group which is specially made for sharing information related to Industrial Automation and Instrumentation.

KISHAN MENDAPARAhttps://worldofinstrumentation.com
Instrumentation and Control Engineer

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