Job
Description
Job Requirements Roles and Responsibilities Develop and revise instrumentation and control system drawings including P&IDs, loop diagrams, hook-up drawings, JB schedules, and cable layouts using AutoCAD. Use Navisworks to review and coordinate 3D models for I&C systems across multidisciplinary design environments (mechanical, piping, electrical, civil). Prepare layouts for field instrumentation, control panels, analyzers, marshalling cabinets, and DCS/PLC system connections. Collaborate with instrumentation engineers to reflect design intent, loop functionality, signal types, and control system architecture. Integrate vendor drawings and datasheets into project deliverables; verify compliance with project standards and client requirements. Support clash detection, visual reviews, and spatial coordination using Navisworks. Maintain proper document control and version tracking of instrumentation deliverables. Assist in producing as-built documentation post project execution and commissioning. Work Experience Required Skill Sets Proficient in AutoCAD 2D for I&C drafting (loop diagrams, wiring schematics, cable layouts, etc.). Hands-on experience with Navisworks Manage or Simulate for 3D model navigation, coordination, and clash detection. Sound understanding of instrumentation systems: transmitters, valves, sensors, analyzers, and their integration with control systems. Ability to interpret and draft P&IDs, control narratives, I/O lists, and loop drawings. Knowledge of industrial control systems (PLC, DCS, SCADA) wiring and architecture. Familiarity with instrumentation standards: ISA, IEC, API, and project-specific specifications. Experience preparing instrument index, cable schedules, and termination diagrams. Good to Have Skills Experience with SmartPlant Instrumentation (SPI) / INtools or AVEVA Instrumentation. Exposure to BIM processes and integration with other disciplines (electrical, piping, civil). Familiarity with control panel design, cabinet GA drawings, and internal wiring layouts. Knowledge of hazardous area classification and intrinsic safety wiring principles (ATEX/IECEx). Basic understanding of loop check, calibration, and commissioning workflows. Prior experience in onshore/offshore facilities like refineries, LNG terminals, petrochemical plants, or FPSOs. Qualifications Diploma or Bachelor's Degree in Instrumentation Engineering, Electronics. 3+ years of drafting experience in instrumentation and control systems within the oil & gas or process industry.
