2,078,620open jobs
123,248companies
250,685added this week
Browse all
Salary
≈ $50k – $78k per year (Estimated)
Location
Hybrid (Warrington, United Kingdom)
Seniority
Senior · 3+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 31, 2026. First seen by Alion on Oct 20, 2026. Assystem scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Assystem is a French engineering group founded in 1966 that concentrates on complex infrastructure projects, with nuclear energy as its largest and most distinctive market. It provides design engineering, project management, safety analysis, commissioning support and operational assistance across nuclear new build, plant life extension and decommissioning, and also works on transport, energy transmission and life sciences facilities. Headquartered near Paris and listed on Euronext, it holds a significant stake in Framatome and employs thousands of engineers across France, the United Kingdom, the Middle East and Asia.

Today, Assystem is among the top three independent nuclear engineering firms worldwide. With over 60 years of experience in highly regulated sectors, the group supports public and industrial stakeholders in the execution of complex and strategic infrastructure projects, subject to high safety and security requirements.

Assystem mobilizes 8,000 experts in 13 countries and intervenes across the entire project lifecycle, in engineering, project management and digital solutions.

Senior Engineer

Warrington

Contract / Staff

A CS&A Engineer is required to support the delivery of the CS&A elements of the project, in collaboration with other stakeholders and engineering disciplines. The role will involve the following, among others:

General all-round civil and structural design experience required, with experience working on new nuclear build and interfaces with existing structures preferred.

Experience is also required in the design of concrete, steel and masonry structures, subject to normal and abnormal environmental loading, including seismic assessments (preferred).

Supporting the delivery of the CS&A design deliverables (e.g. designs, assessments, drawings, and reports), checking and approving the output.

Experienced in delivering work within the nuclear industry (preferred).

The person should be either a Chartered Civil or Structural Engineer, or at minimum an Incorporated Engineer.

This role requires interface with Integrated Design Team, facility team (including systems engineering), other project functions and must work closely throughout project phases. The ability to work collaboratively in a team environment and on-site visits.

Essential Qualifications:

Degree qualified CS&A Engineer (or equivalent through enhanced experience)

Essential Experience:

A minimum of three years working within a highly regulated industry

Familiar with a range of available design technologies and techniques

Production of CS&A design documents, e.g. civil and structural calculations (design/assessment/substantiation), engineering drawings, specifications, scopes of work, method statements

Proficient in Steel and Concrete design to current codes

Knowledge of CDM and design responsibilities

Capable of independent and autonomous work during the delivery of packages

Able to actively seek input from other engineers, specialists, facility and project team members to improve understanding and deliver fit-for-purpose solutions

Able to present information clearly, tailored to a variety of target audiences

Desirable:

Working towards Chartered Engineer status

Experience of Sellafield or broader nuclear industry design

Interest or experience in Sustainability

The successful applicant must be a UK resident and, due to the nature of the work to be undertaken, applicants will be required to meet this criteria in order to attain a minimum level of BPSS clearance.

NOTICE TO CANDIDATES ON RECRUITMENT FRAUD - We are committed to safeguarding candidates from fraudulent activity associated with our recruitment process. Please note that we will never offer specialist CV writing services, request payment or ask for sensitive personal information during the recruitment process.

We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.

Free account
Stop reading job ads. Get the ones that fit.
One free account turns this page into a shortlist built around your stack, your level and your pay.
Match on every job. Stack, seniority, pay and location, scored against your profile.
2,078,620 open roles. Read straight off company career pages, refreshed every day.
Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.
3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.
Create a free account Continue with Google
Free forever. No card. Under a minute.

Recommended for you based on this role

Industrial Engineering
Similar stack
Same company
Warrington
≈ $64k – $102k per year (Estimated) · In office · Full-Time · 5+ years exp · Bachelor's Degree · London
Apply
≈ $56k – $88k per year (Estimated) · Hybrid · Full-Time · Warrington
Apply
≈ $74k – $117k per year (Estimated) · In office · Full-Time · 4+ years exp · London
Python
JavaScript
Java
TypeScript
AI/ML
LangChain
Model Context Protocol
AI Agents
Human-in-the-Loop
Structured Outputs
Frontend
Next.js
React.js
DevOps
GCP
Azure
CI/CD
AWS
Apply
≈ $72k – $147k per year (Estimated) · In office · Full-Time · London
Apply
Production Manager 1 hour ago
≈ $47k – $98k per year (Estimated) · In office · Newbury
Life Sciences
GMP
Apply
Quality Engineer 11 days ago
≈ $51k – $80k per year (Estimated) · Hybrid · Full-Time · 5+ years exp · Derby
Apply
Senior EC&I Engineer 11 days ago
≈ $54k – $85k per year (Estimated) · Hybrid · Full-Time · Whitehaven
Apply
≈ $61k – $101k per year (Estimated) · Hybrid · Full-Time · Whitehaven
Apply
≈ $56k – $93k per year (Estimated) · Hybrid · Nationals only · Full-Time · 10+ years exp · Warrington
Apply
≈ $34k – $72k per year (Estimated) · Hybrid · Full-Time · Warrington
Apply
≈ $62k – $103k per year (Estimated) · In office · Bachelor's Degree · Warrington
Apply
$80k – $101k per year · Hybrid · Full-Time · Derby · Manchester · Warrington
Python
SQL
DevOps
Azure DevOps
Azure
Configuration Management
Analytics
Power BI
Management
Agile
SpaceTech
IBM DOORS
MBSE
MedTech
Verification & Validation
Apply
$72k – $95k per year · Hybrid · Full-Time · Derby · Manchester · Warrington
DevOps
Wi-Fi
Apply
$61k – $72k per year · Hybrid · Full-Time · Manchester · Warrington · Sheffield · Birmingham · Leeds
Apply
≈ $51k – $81k per year (Estimated) · Hybrid · Full-Time · Warrington · Nottingham
Design
AutoCAD
Apply
See all jobs
This is one of many
2,078,620 more open roles from verified company boards, updated every day.