Jacobs TRI Engineer in Bristol, United Kingdom

TRI Engineer


Jacobs is one of the world’s largest and most diverse providers of full-spectrum technical, professional and consultancy services for industrial, commercial and government organisations globally.

With more than 74,000 people globally, our teams collaborate, innovate and create. Our people are proud to have been behind some of the greatest consultancy and engineering feats over the past 70 years.

We foster acollaborative and inclusive environment for our people, and our partners, and we want you to be a part of our growing business.

With more than fifty years of Nuclear experience, Jacobs has unrivalled nuclear capability and provides full life-cycle solutions to our nuclear clients. Services include programme and project management, design and engineering, reactor support, construction, commissioning, operations, maintenance, (radioactive) waste management, decommissioning and clean-up.

We have consistently delivered value and innovation to technically challenging and complex nuclear and environmental-related projects by offering multidisciplinary capabilities, technical expertise, proven processes and a commitment to regulatory compliance, health, safety and quality workmanship.

Job Purpose:

The Engineer for the Effluent Treatment Building Closed Cooling Water System (9TRI) writes the system documents containing all the information on the design and the operation of their systems (description, sizing, P&ID and I&C). They are responsible for writing the system design manuals (description, sizing, P&ID and I&C) and updating them, in compliance with the engineering rules, methodologies and tools.

Main Activities:

Based on the specification for the system, the Pre Construction Safety Report (PCSR) and the engineering guidelines, the system engineer:

Prepares the System Design Manual:

  • Describes the system, its role and missions (including the safety missions)

  • Carries out the operational design of the system

  • Carries out the sizing for the system and its components

  • Drives the 2D mechanical diagram designer for the production of the Process & Instrumentation Diagrams and the population of components attributes in 2D mechanical diagram tool. He/She checks the technical consistency of the latter

  • Writes the I&C requirements and prepares functional diagrams for the data input into the I&C tools related to the project

  • Writes the I&C tests procedures

  • Populates all the ”system” databases

Reviews all relevant FA3 input data and implements the lesson learnt from other EPR projects (FA3, OL3, TSN) or KONVOI design

Establishes/updates the safety classification of the components of the system

Update the PCSR (Pre Construction Safety Report) chapter related to their system

Ensures the proper integration of the P&ID in the 3D model (verifies the 2D/3D consistency)

Supports the Equipment Engineer to survey the documents produced by the equipment suppliers

Manages modifications related to the system:

  • Receives the change requests issued by the various external parties

  • Verifies the consistency of these modifications, systematically challenges their necessity

  • Provides information for the decision on the modification implementation prior to including them in the system documentation

  • Develops technical solutions and presents them to the client to help resolve their technical issues

  • Consults with the client

These activities are performed in interaction with departments based near Paris.

Note1: This job description is not an exhaustive list of the responsibilities & activities that the job holder may be required to undertake.

Note2: Travel costs for non-local candidates are not paid.

Note3: Expected to attend during normal working hours Monday to Friday.

Note4: BPSS level security required



  • A Bachelor/Masters Degree in Engineering

  • Junior Engineer to Engineer – all considered

  • EPR system and I&C design

  • Knowledge of cooling water systems

  • Microsoft Word/Excel

  • 3D Viewer

  • Interpersonal skills, reports directly to the referent engineer and/or the group leader

  • Conscientious

  • Organised

  • Ability to prioritise, to manage numerous interfaces, to question and understand the imperatives of other downstream disciplines.

  • Ability to meet commitments and deadlines.

  • Ability to transfer knowledge.

  • Good written/spoken English and confident presenter

  • Writes clearly-expressed and well-presented reports

  • Logical thinker

  • Proactive

  • Able to manage own workload and work as part of a team

  • Good communication skills

  • Ability to use own initiative, with the capability to take responsibility for problems within their own capability and responsibility

  • Good attention to detail and a high level of analytical and numerate skills

  • Ability to work autonomously under broad instructions

  • Concise


  • Knowledge on safety studies and nuclear operation is a bonus

  • French speaking

Our Culture

At Jacobs we have recently celebrated 10 years of our culture of caring - ‘BeyondZero’. We see safety differently - we strive to go BeyondZero by putting the health, safety and well-being of our employees first in everything we do.

We are committed to equality across our business and we promote STEM and WISE (Women in Science & Engineering) initiatives. When you join Jacobs you will have access to a wide range of Global Networks, centred on inclusion and diversity. To find out more about our networks, check out our website:


We encourage applications from candidates looking for flexible working or reduced hours’ contracts.

Successful candidates will be asked to complete a Baseline Personnel Security Standard Pre-Employment check and will be required to undergo various checks including: Identity, Right to Work; Employment/Education History and Criminal Record. If you are unable to meet this and any associated criteria, then your employment may be delayed or rejected.

JACOBS is an Equal Opportunity Employer who is committed to the safety and wellbeing of all.

Primary Location United Kingdom-United Kingdom Countrywide-Bristol

Req ID: ATE00000C