Senior Principal Piping/Mechanical Designer
Worley Group
Listing collected from Worley Group's career site. NextChapter is independent of Worley Group.
Reading, PA · Posted September 9, 2026
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Where Reading, PA ranks
Where Reading, PA placed in our monthly rankings, month by month. Each month stays online at its own address.
November 2026
- #9Best cities for logistics and transportation jobs71 openings · of 17
- #20Best cities for mid-career professionals in the Northeast52% · of 70
- #22Best cities for software and engineering jobs in the Northeast64 openings · of 52
Rankings about design jobs
- Best cities for design jobs #1 New York (717 openings)
- Most requested AI skills in design jobs #1 AI tools in daily work (14.5%)
- Employers with the most design jobs #1 Amazon (176 roles)
How AI is used in this kind of work
AI use among mechanical drafters is little observed so far. Measured exposure for mechanical drafters: 0% (little observed).
Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
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About the job
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 :
As a Senior Principal Designer, you will be responsible to have a full understanding of the project’s scope, overall schedule, deliverables, milestones, manhour budgets, industry standards, applicable codes, and procedures.
Responsibilities:
Develop man hour estimates.
Participate in Interactive Planning Meetings to help develop schedules to establish major milestones.
Develop a staffing plan to satisfy budget and schedule.
Determine line count and estimated isometric quantities based on P&ID’s.
Be knowledgeable of client procedures, project procedures, and specifications.
Establish design areas within the unit/areas of responsibility.
Identify and request information in the form of a 'Needs List' to maintain schedule.
Monitor and utilize the Master P&ID MOC (Management of Change) log to identify scope change.
Utilize a 3D model (AVEVA E3D/Navisworks) review software to monitor design quality and progress.
Review and approve deliverables prior to issue.
Coordinate the design effort with other engineering and design disciplines.
Ensure deliverable verification procedures are followed.
Participate in all design reviews for the project.
Piping drawing checking and verification experience in the office and in the field is a plus.
Previous AVEVA 3D experience developing Piping Models, Pipe Supports, Equipment Models, Isometric and Orthographic Drawing extraction is a plus.
Develop general arrangements of plant facilities, structures and equipment considering safe maintenance and construction while interfacing with all engineering and design disciplines.
Field design experience with the capability to perform field walk downs using P&ID’s, locating tie points dimensionally, and routing pipe through existing facilities. Locate and identify pipe support types. Bring that back to the office for inputting the field data into an AVEVA E3D model.
Projects may utilize Laser Scanning. Experience using Scans within AVEVA E3D is a plus.
Experience with executing projects within existing facilities with many obstructions and other design constraints.
Leading and mentoring project team members from multiple office locations including Global Integrated Delivery (GID) centers.
Responsible for performing difficult and complex work assignments involving independent judgment to determine a course of action consistent with established functional and organization's policies and goals. Typically includes supervisory or team leadership role as well as project and department related administrative responsibilities.
What you will bring Technical/Industry Experience and Qualifications Requirements:
Extensive years of relevant lead piping designer and layout design experience for power, chemical, and industrial facilities. Has a strong background in discipline work and a competent understanding of regulations, codes, manufacturing standards, and industry standard practices.
Skilled in estimating project costs and writing proposal content.
MS Office skills (Word, Excel, and PowerPoint) required.
2 years 3D model design software experience required using AVEVA E3D.
Experience with the application of Microstation V8i & AutoCAD.
Education – Qualifications, Accreditation, Training:
Required:
2 or 3 year technical diploma with piping design specific training.
Preferred :
An equivalent combination of education, training, and experience. Trained in leadership and project execution.
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.