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Instrument and Controls Engineer


Bangalore, KA, IN

Company:  ExxonMobil

Job Responsibilities:

  • Supports development and execution of centralized engineering services for existing upstream production operating units and new upstream capital projects to maintain safety availability and reliability of the instrument and control systems while optimizing cost.  
  • Develop and execute instrument surveillance programs:
    • collect data using Computer Maintenance Management System (CMMS) or other available data sources.
    • analyze maintenance records to determine instrument failure rates, availability / reliability calculations, bad actor / failure modes identification, and program effectiveness / cost analysis
  • Develop and execute process control surveillance programs:
    • collect and trend process data using company’s multiple process historian database and visualization software tools
    • perform process control philosophy and stability reviews coupled with execution of control logic updates and loop tuning
  • Conduct criticality assessment and develop equipment strategies/maintenance plans for instrumentations and control systems taking into consideration Safety Integrity Level (SIL) assessment, industry standards, regulatory requirement and manufacturer recommendations
  • Execute control system life cycle management programs which include control system inventory, obsolescence plans, managing spare parts and upgrade/replacement planning
  • Support control system maintenance and test planning as required, software upgrades, ESD testing, offline and online testing, and coordination of activities with/without plant shutdowns
  • Support metering systems maintenance planning including for custody transfer, allocation, regulatory, and leak detection applications
  • Support planning and coordination of tasks related to control system cyber security
  • Review systems for compliance with company’s Industrial Control System Requirements (ICSR) to minimize cybersecurity threats
  • Participate with multi-disciplinary alarm management efforts including alarm rationalization, prioritization, development of state based alarm schemes, and design / modification of alarm systems
  • Review update and develop instrument and controls technical documentation / drawings including P&IDs, cause and effect, and control narratives
  • Travel to production affiliate office/facility locations for onsite support or rollout of new global support initiatives

Job Requirements:

  • Bachelor degree from recognized university in Electrical, Mechanical, or Chemical Engineering
  • Minimum 15 years of work experience in oil & gas, refining, or petrochemical industry
  • Experience in selection, application, and ISA data sheet specification of hardware including pressure/ temperature /level instruments, control valves, shutdown valves, and fire/gas detection
  • Experience and knowledge in the following areas:
    • instrument signal transmission (analog and digital) including power and grounding design
    • instrument and wiring method selection for electrically hazardous areas
    • control system architecture design including basic process control versus safety instrumented system
    • safety system engineering, SIL assignment / analysis, availability calculations
    • industry standard communication protocols and methods of cyber security application
    • control system logic configuration and programming methods
    • process control (e.g. PID theory /tuning, other basic/advanced regulatory control methods)
    • control room /HMI design including human factors considerations and alarm management methods
    • measurement engineering and measurement standards (e.g. API MPMS, AGA, GPA)
    • knowledge of and application experience with industry codes and standards (e.g. IEC-61511, API RP-500/505 or IEC-60079, API RP-551/552, IEC-61131, IEC-62682)
    • regulatory requirements
  • Able to review, evaluate, and update cause and effect, P&IDs, logic and architecture diagrams and control narratives
  • Proficient in data collection and analysis with common database and software data analysis tools such as SAP, Analytics for Excel and Tableau
  • Strong verbal and written communication skills in English


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