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ASSYSTEM

Engineering services for design, construction, commissioning

Senior Mechanical Design Engineer - Fluid Systems

Design EngineeringConfirmed live in the last 24 hours
Full-timeBristol, UKNo salary listed

About the Job

Requirements

  • Previous experience as a Mechanical Design Engineer or in a similar role.
  • Ability to work within the engineering team to realize designs.
  • Familiarity with 2D computer-aided design systems such as AutoCAD for drawing creation.
  • Familiarity with 3D computer-aided design/building information modeling systems such as Revit, Inventor, SolidWorks, Solid Edge, Siemens NX, PDMS, or AutoCAD Plant 3D for model and drawing creation.
  • A professional qualification in an engineering-related field.
  • Must hold or be capable of attaining SC clearance.
  • Good written and oral communication skills.
  • Ability to focus on delivering quality output within time and budget.
  • Ability to act with integrity and instill it in others.
  • Ability to work independently, using initiative and self-motivation.
  • Flexibility and agility to meet role needs and delivery targets.
  • Confidence in suggesting alternative solutions that address safety, time, cost, and quality.
  • Ability to manage own time and deliver within agreed timescales.

Responsibilities

  • Develop fluid systems and work closely with multidisciplinary teams and the supply chain to help deliver the system design.
  • Develop 2D computer-aided design drawings, including process flow diagrams and process and instrumentation diagrams.
  • Prepare 3D computer-aided design/building information modeling models, plant layouts, piping designs, isometrics, material take-offs, general arrangement drawings, detail drawings, and sketches.
  • Perform layout optimization engineering across design phases.
  • Participate in 3D model reviews, layout reviews, design reviews, and technical meetings.
  • Ensure compliance with required design safety factors, tolerances, specifications, standards, codes, legislation, and requirements.
  • Collaborate with multidisciplinary engineering teams to ensure a coordinated design.
  • Maintain records of the design process in accordance with sound design practices.
  • Maintain and update databases for computer-aided design/building information modeling design documentation.
  • Report status and updates to line management.
  • Support the team and maintain required standards and expectations; meet targets and quality, time, and budget constraints.
  • Support and mediate solutions to issues, ensuring all stakeholders are aligned.
  • Ensure adherence to company statutory health and safety policies and rules, and compliance with project and quality requirements.

About the Company

ASSYSTEM

Engineering services for design, construction, commissioning

Assystem provides engineering services for complex projects, covering design, construction, supervision, commissioning, and operation, with a strong focus on the nuclear and energy sectors. Its approach combines multidisciplinary engineering teams and project-management capabilities to move projects from initial concept through to operation. The company differentiates itself through a long track record, strategic acquisitions (including Alphatem in 1995 and Mactech Energy Group in 2025) and an early public offering in 2013, which have expanded its capabilities and market reach in the energy and nuclear fields. Its goal is to be a leading, reliable partner for clients by delivering end-to-end engineering services and helping them meet safety, performance, and regulatory requirements across the project lifecycle.

Company size
5,001-10,000
Company stage
IPO
Headquarters
Paris, France
Founded
1966

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