Principal Instrumentation Designer

About us 

Worley is a global company of energy, chemicals and resources experts headquartered in Australia. We partner with our customers to deliver projects and create value across the life of their assets. We specialize in consulting, engineering, procurement and construction across the project lifecycle, with services extending through to operations and decommissioning. Leveraging extensive experience and AI-enabled delivery, we support customers in navigating complexity as they meet today's needs and transition to more sustainable solutions. 

Job Purpose

The Principal Instrumentation & Control Designer is responsible for leading the instrumentation design and drafting activities across Oil & Gas projects, ensuring technical accuracy, compliance with project specifications, international standards, client requirements, and timely delivery. The role involves hands-on expertise in 2D and 3D design tools, coordination with multidisciplinary teams including support offices, and mentoring of designers.

Key Roles and Responsibilities

• Technical Leadership
  • Lead and manage all Instrumentation & Control design and drafting activities throughout the project lifecycle (Detailed Design, and EPC).
  • Interpret and implement project specifications, design criteria, standards, and client requirements.
  • Guide and review work performed by instrumentation designers and draftsmen to ensure quality and consistency.
  • Act as the focal point for Instrumentation design coordination with Engineering, Electrical, Process, Mechanical, Civil, and Telecom disciplines.
• 2D Design & Drafting
  • Develop, check, and approve 2D drawings using AutoCAD including but not limited to: 
    • Control System Architecture Diagram. 
    • Instrument Cable Block Diagrams.
    • Block Diagram.
    • Loop Diagrams.
    • Wiring Diagrams.
    • Hook-Up Drawings.
    • Instrument Installation Drawings.  
    • Instrument Location Layouts.
    • Cable Routing Drawings.
    • MCT Layouts.
    • Control Room layouts.
  • Ensure drawings comply with project standards, applicable international codes, and client specifications.
• 3D Modeling & Model Management
  • Lead 3D modeling activities using SP3D / E3D for Instrumentation scope.
  • Develop and review: 
    • Instrument and JB modeling.
    • Cable tray and routing interface.
    • Instrument supports and mounting arrangements.
  • Coordinate with other disciplines to resolve clashes and ensure model integrity.
  • Participate in model reviews, constructability reviews, and interdisciplinary coordination meetings.
• Project Execution & Coordination
  • Plan, assign, and monitor design activities to meet project schedules and milestones.
  • Interface with Project Engineering, Project Management, Construction, and client representatives.
  • Support responses to technical queries (TQs), site queries, and design changes.
  • Provide input for material take-offs (MTO), estimates, and project schedules.
• Quality Assurance & Compliance
  • Implement and adhere to company and project Quality Assurance / Quality Control procedures.
  • Ensure all deliverables are checked, approved, and issued as per document control procedures.
  • Support audits, design reviews, and lessons-learned processes.
• Health, Safety & Environment (HSE)
  • Apply HSE requirements in the design process, with focus on safe and operable plant layouts.
  • Promote safe work practices and compliance with project HSE objectives.

  • Identify design-related hazards and support risk mitigation.

     

Qualifications & Experience

• Education
  • Diploma or Advanced Diploma in Instrumentation & Control / Electrical / Applied Engineering or equivalent technical qualification.
• Experience
  • Relevant years’ experience as an Instrumentation & Control Designer in Oil & Gas EPC projects.
  • Proven experience working on Middle East Oil & Gas projects.
  • Demonstrated experience in handling client interfaces and multidisciplinary coordination.

Mandatory Technical Skills

• Software Proficiency
  • 2D Drafting: 
    • AutoCAD
    • MicroStation
    • 3D Modeling: 
    • SP3D
    • AVEVA (E3D)
  • Experience with model reviews, clash detection, and database-driven engineering environments.

Technical Expertise

• Full understanding of Instrumentation & Control systems in Oil & Gas facilities.
• Knowledge of international standards and codes for instrumentation design.
• Experience in preparation and checking of deliverables for EPC phases.

Competencies

• Strong leadership and mentoring skills.
• Excellent coordination and communication abilities.
• Detail-oriented with strong problem-solving capability.
• Ability to work under schedule pressure while maintaining quality.

Moving forward together

We want our people to be energized and empowered to drive sustainable impact. So, our focus is on a values-inspired culture that unlocks brilliance through belonging, connection and innovation. We're building a diverse, inclusive and respectful workplace. Creating a space where everyone feels they belong, can be themselves, and are heard.

And we're not just talking about it; we're doing it. We're reskilling our people, leveraging transferable skills, and supporting the transition of our workforce to become experts in today's low carbon energy infrastructure and technology. Whatever your ambition, there's a path for you here.

And there's no barrier to your potential career success. Join us to broaden your horizons, explore diverse opportunities, and be part of delivering sustainable change.