Layout Integration Engineer

Company: Assystem
Apply for the Layout Integration Engineer
Location: Warrington
Job Description:

Overview

In this role you will own the development of integrated plant layouts for Fusion and Modular Nuclear programmes, guiding layout work from concept to detailed design. You will collaborate with multiple disciplines to ensure safe, constructable and maintainable arrangements. The position offers the chance to influence modular nuclear projects and 3D CAD/BIM-driven layouts in a high-safety, high-regulation environment. You will lead design interfaces and drive layout decisions that support operational and construction needs, delivering integrated studies and reports.

Pay / Benefits

  • Pension scheme (8% company contribution / 4% personal contribution)
  • 25 days’ paid annual leave + bank holidays + option to buy or sell days
  • Professional fees reimbursed
  • Flexible working
  • Employee referral scheme

Responsibilities

  • Own layout development for assigned systems, buildings or plant areas
  • Develop integrated equipment, piping, cable tray, access and maintenance layouts
  • Interpret and apply PFDs, P&IDs, equipment data sheets, line lists, requirements and engineering constraints
  • Capture and manage design assumptions, constraints and interfaces
  • Develop layouts within 3D CAD/BIM environments
  • Lead piping routing studies and plant integration activities within assigned scope areas
  • Act as the primary layout focal point for assigned work packages
  • Coordinate design activities across multiple engineering disciplines
  • Lead multidisciplinary workshops, model reviews and layout reviews
  • Identify clashes, interfaces and design conflicts and drive their resolution
  • Ensure layout solutions satisfy system, operational, safety, construction and maintenance requirements
  • Produce general arrangements, layout studies and engineering deliverables
  • Author technical reports, optioneering studies, design philosophies and engineering recommendations
  • Present technical solutions and recommendations to stakeholders
  • Support modularisation, construction and maintainability assessments
  • Support requirements management and interface management activities

Key requirements

  • Degree qualified in Mechanical Engineering or related discipline, or equivalent industrial experience
  • Experience in plant layout, piping design, plant design or multidisciplinary engineering projects
  • Experience within nuclear, power generation, defence, submarine, oil & gas, process plant or other complex engineering environments
  • Experience using CAD/BIM tools: E3D, PDMS, Plant 3D, Siemens NX, Revit, Inventor or similar
  • Experience using Navisworks or equivalent model review software
  • Ability to interpret engineering documentation including PFDs and P&IDs
  • Understanding of systems engineering principles, requirements management and interface management
  • Strong communication and report writing skills
  • SC Clearance or capable of achieving it
  • Strong communication
  • Report writing
  • Cross-functional collaboration
  • E3D
  • PDMS
  • Plant 3D

…

Posted: October 1st, 2026