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Salary
≈ $74k – $121k per year (Estimated)
Location
In office (London)
Seniority
Principal · 10+ years exp

Confirmed on the employer's own hiring board on Oct 24, 2026. First seen by Alion on Oct 23, 2026. McDermott scores A on the Alion truth index.

Overview
Company
Impact
Profile match
McDermott is an engineering, procurement, construction and installation contractor headquartered in Houston, Texas, delivering offshore and onshore oil and gas, LNG, petrochemical, power and low-carbon energy projects for energy companies. Founded in 1923, the company operates engineering centers and fabrication yards across the Middle East, Asia Pacific, India, Europe and the Americas, with major hubs in Dubai, Chennai, Kuala Lumpur, Batam and London. It hires structural, electrical, process and production engineers, electrical designers, quality inspectors, procurement and contracts specialists, document controllers, project accountants and completion coordinators.

Job Overview:

The Principal Piping Designer directly impacts the effectiveness of their team and related team. They exchange ideas and information relating to Piping Design effectively. The Principal Piping Designer may work autonomously within established Piping Design procedures and practices. They act as a lead, coordinating the work of others. The Principal Piping Designer proposes improvements to processes and methods within the Piping Design discipline.

Key Tasks and Responsibilities:

  • Perform Design and Engineering process facilities within a specified time while adhering to maintenance, safety, and quality standards, consider constructability, economics, and operation into account during Pre-FEED, FEED, or Detailed Design phases
  • Develop 3D Models and ensure clash free model in coordination with all other disciplines requirements,
  • Approve drawing including plot plans as per project specifications, McDermott Procedures, Process Design practice
  • Complete assignments and facilitate the work activities of others
  • Set priorities, organize own work and time to meet objectives, and (as Lead Designer) forecast and plan resource requirements
  • When acting as Lead Designer, in addition:
    • Lead the design team to complete the tasks within the planned schedule and budget, in accordance with standards, McDermott, and project-specific procedures
    • Act as project-based discipline point of contact in communications and meetings with Project Team, Client, vendor/supplier, and/or subcontractor counterparts
    • Ensure that the inter-discipline aspects of the design and deliverables are addressed
    • Support Lead Piping Engineer in measuring the progress and productivity
    • Coordinate all activities within own discipline and discipline interfaces with other disciplines
    • Ensures effective communications among other disciplines and effective management of change
    • Coordinate 3D Model Reviews and ensure Review comments are closed
  • Is fully familiar with the Project Scope of work, specifications, schedule, and inter-discipline requirements
  • Develop Plant Design and 3D Modelling, Drawings in accordance with work hours and schedule
  • Add input into the Plant Layout Narrative in accordance with the agreed Scope of work
  • Identify issues as soon as they arise and follow up with any required corrective action
  • Identify changes to scope and promptly raise change notifications in the Change Management System
  • When acting as Lead Designer, assist the Lead Piping Engineer in raising technical queries, preparing the piping estimate and job scope changes
  • Attend project Kickoff, Review meetings, Vendor meetings, model reviews
  • When acting as Lead or area lead, monitor and coordinate the design team (remotely if required)
  • When acting as Lead or area lead, lead the project in a Multi Office Project Execution Environment (MOPEX)
  • Support and supervise less-experienced members within the design team
  • Ensure that the work is carried out in accordance with McDermott requirements, Client and Statutory Design Codes, Standards, or Procedures with a particular focus on Health and Safety Policies
  • Support the Department Manager with the Designer's appraisals
  • Exercise judgment, based on previous experience, practices, and precedents, to identify and solve problems that arise with little or no precedent
  • Exchange ideas and information effectively and is direct when dealing with others

Reports to:

Project: Lead Piping Engineer, Lead Piping Designer

Functional: Supervising Department Manager

Liaise With: Lead Designers, Engineers, all other Engineering disciplines Leads assigned to the project, Project Engineer, IM

Group, Document Control, and Client representatives.

Lead Designers and Designers, Engineers, other Engineering and Design disciplines assigned to the project, Project Engineer,

IM Group, Document Control, and Client representatives

Supervises: Piping Design team assigned to a project or part of the project during the detailing and production phases

Essential Qualifications and Education:

  • Minimum of 10 years with major contractor or consultant of which 10+ years of experience in oil and gas performing Pre-FEED, FEED, and Detailed Design
  • High School graduate with a diploma in Mechanical Design, or Drafting in a related discipline or equivalent experience
  • Detailed knowledge of 3D CAD system including E3D or SP3D
  • Minimum 1 or 2 projects working experience in E3D and/or S3D
  • Detailed knowledge of AutoCAD and/or Auto lisp
  • Familiar with the associated local regulatory environment and international and national industry standards and specifications
  • Capable of Leading projects
  • General understanding of how process equipment is maintained and operated
  • Programming, 3D Modeling, Menu, and/or Macro compilation skills would be an advantage
  • Flexible for business traveling/assignments
  • Knowledge of QA Systems and a good communicator
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