Senior Principal Instrumentation Designer

WorleyParsons; Baton Rouge (LA); On-site; USD 140,000 - 200,000; Full time

Job summary

Worley is seeking a Senior Principal Instrumentation Designer to lead the instrumentation design team on major projects. You will provide technical direction, coordinate across disciplines, and ensure deliverables meet client specs, codes and safety standards.

With 12+ years in instrumentation design, you will mentor designers, manage manpower, and support field verification. Travel to project sites and client facilities may be required as part of duties.

Qualifications

• Typically 12+ years of instrumentation design experience, preferably in oil and gas, refining, or petrochemical projects.
• Proven ability to lead instrumentation design on complex multi-discipline projects.
• Experience with instrument indexes, I/O lists, loop drawings, and installation details.
• Strong knowledge of industry codes, standards, and safety requirements.

Responsibilities

• Develop, review, and check instrumentation deliverables including instrument location plans, installation details, loop diagrams, wiring and termination diagrams, junction box schedules, I/O lists, panel layouts, cable tray/conduit routing, and construction work packages.
• Coordinate with engineering, project management, piping, electrical, civil/structural, process, procurement, vendors, clients, and workshare teams for integrated project delivery.
• Mentor and mentor junior designers and CAD technicians, including technical coaching and development input.
• Plan and conduct field investigations, site walkdowns, data gathering, and as-built verification at customer facilities.

Skills

Leadership

Team leadership

Mentoring

Communication

Collaboration

Travel willingness

Tools

AutoCAD

SmartPlant Instrumentation/SPI

MicroStation

Smart 3D

E3D

PDMS

Navisworks

Job description

Job Description - Senior Principal Instrumentation Designer (BAT00HO)

Company : Worley

Job

Instrumentation and Controls

Schedule

Full-time

Employment Type : Employee

Job Posting

Sep 14, 2026

Unposting Date

Reporting Manager Title : Department Manager Instrumentation Engineering

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.

Purpose:

Lead the instrumentation design team on assigned projects or project phases, providing technical direction, work planning, and design coordination from concept through construction support.

Responsibilities:

• Develop, review, and check instrumentation deliverables including instrument location plans, installation details, loop diagrams, wiring and termination diagrams, junction box schedules, I/O lists, panel layouts, cable tray/conduit routing, and construction work packages.


• Ensure discipline deliverables meet technical quality, accuracy, safety, constructability, client specifications, Worley standards, and applicable industry codes and practices.


• Coordinate closely with engineering, project management, piping, electrical, civil/structural, process, procurement, vendors, clients, and workshare teams to support integrated project delivery.


• Perform discipline administrative responsibilities including developing and monitoring manpower plans, schedules, budgets, progress reporting, design requirements, drafting data, and workshare packages.


• Provide design sketches, technical guidance, and practical design solutions for drawing and model preparation by designers and CAD technicians.


• Review and resolve 3D model interferences and clashes related to instrument locations, supports, cable tray, conduit routing, equipment access, and discipline interfaces.


• Check work prepared by lower-level designers and CAD technicians for compliance with project requirements, customer standards, Worley procedures, and discipline best practices.


• Mentor and support the development of junior designers and CAD technicians, including providing technical coaching and input on performance and development needs.


• Plan and conduct field investigations, site walkdowns, data gathering, and as-built verification at customer facilities as required.

What you will bring

Technical/Industry Experience and Qualifications Requirements:

• Typically 12+ years of instrumentation design experience, preferably supporting oil and gas, refining, chemical, petrochemical, energy, or heavy industrial projects.


• Strong experience leading instrumentation design work on complex multi-discipline projects, including coordination of design teams, schedules, budgets, and deliverables.


• Proficiency with AutoCAD and SmartPlant Instrumentation/SPI is required; experience with MicroStation and 3D modeling tools such as Smart 3D, E3D, PDMS, or Navisworks is preferred.


• Working knowledge of instrumentation design deliverables, industry codes and standards, construction practices, field verification, and plant safety requirements.


• Experience with instrument indexes, I/O lists, loop drawings, wiring diagrams, junction box schedules, instrument installation details, material take-offs, and construction packages.


• Strong communication, organization, problem-solving, and collaboration skills with the ability to interface effectively with clients, project teams, vendors, and workshare partners.


• Ability and willingness to travel to project sites and client facilities as required; TWIC eligibility may be required depending on project assignment.

Education – Qualifications, Accreditation, Training:

Required:

Preferred:

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.