INSTRUMENTATION DESIGNER/MODELER
Job Description
The Instrumentation Designer/Modeler is responsible for producing detailed 2D and 3D layouts of instrumentation systems, ensuring all design outputs support proper installation, accessibility, maintainability, and compliance with industry standards. The role includes modeling of instruments, junction boxes, tubing systems, impulse lines, and instrument supports in close coordination with other disciplines.
Roles & Responsibilities:
Prepare and update 2D and 3D models of Instrument layouts, Junction box and marshalling cabinet layouts, Tubing and impulse line routing, Cable tray routing for instrument cables, Control room and local panel arrangements.
Ensure proper instrument location with respect to accessibility, safety, and process requirements
Generate and maintain accurate instrument index, location plans, and hook-up drawings
Create and update Loop diagrams and wiring diagrams, Instrument hook-up drawings (process and pneumatic), Material take-offs (MTOs) for instrument bulk materials (tubing, fittings, trays, etc.)
Model instruments and junction boxes in 3D platforms such as SP3D, E3D, or AutoCAD Plant 3D.
Use tools like Navisworks, SmartPlant Review, or Intergraph tools for navigation and review.
Must Have Skills:
Diploma or ITI in Instrumentation Engineering / Industrial Drafting.
7-10yrs of experience within the oil & gas or petrochemical industry.
AutoCAD, MicroStation, SmartSketch
SP3D, E3D, AutoCAD Plant 3D, SmartPlant Instrumentation (SPI / Intools)
Understanding of field instruments (transmitters, switches, analyzers, control valves), junction boxes, and DCS/PLC systems.
Knowledge of tubing, fittings, manifolds, impulse line routing, and instrument installation details.
Awareness of IEC, ISA, API, and client specifications (e.g., Shell DEPs, Aramco, ADNOC standards).
Experience in interdisciplinary model coordination and drawing checking for quality and completeness.
Expected Outcome:
Instrumentation layouts and hook-ups that are safe, maintainable, and clash-free
On-time completion of layouts, wiring diagrams, loop drawings, and 3D models as per project schedule.
Accurate and clash-resolved instrument models within the overall plant design.
Consistent, error-free drawings that reduce field modifications and installation issues
Supports constructible and cost-effective installation of instrumentation systems
Technical Skills
Soft Skills
Requirements
- Diploma or ITI in Instrumentation Engineering / Industrial Drafting
- 7-10 years of experience within the oil & gas or petrochemical industry
- Experience with AutoCAD, MicroStation, SmartSketch, SP3D, E3D, AutoCAD Plant 3D, SmartPlant Instrumentation (SPI / Intools)
- Understanding of field instruments (transmitters, switches, analyzers, control valves), junction boxes, and DCS/PLC systems
- Knowledge of tubing, fittings, manifolds, impulse line routing, and instrument installation details
- Awareness of IEC, ISA, API, and client specifications (e.g., Shell DEPs, Aramco, ADNOC standards)
- Experience in interdisciplinary model coordination and drawing checking for quality and completeness
Education
Experience
Key Performance Indicators
- Complete 100% of 2D and 3D instrumentation layouts within project deadlines each quarter
- Achieve less than 3% drawing errors or revisions in instrumentation and hook-up drawings annually
- Resolve 95% of instrument model clashes before design freeze in coordination meetings
- Maintain instrument index and location plans with 100% accuracy and updates within 48 hours
- Generate material take-offs with less than 5% variance against actual procurement costs per project
- Ensure 100% compliance with IEC, ISA, API, and client standards in all design outputs
- Conduct interdisciplinary model reviews achieving 98% clash-free instrumentation models before final submission
Benefits
Interview Process
- Step 1 (30)
- Step 2 (30)
- Step 3 (30)
About Nauvata Energy Transition Enterprise Pvt Ltd
Engineering a Sustainable Future, Together
We are an engineering and project management services company dedicated to supporting our clients in their transition toward a sustainable, efficient, and net-zero future. With our core engineering expertise, project management skills, and command of digital technologies, we work closely with clients to deliver high-quality solutions that meet the industry’s best standards.