Nuclear & Regulated Industry

Senior mechanical engineering for safety-critical programmes.

Steadfast Innovation Ltd provides professional mechanical engineering support to the nuclear industry and major programmes in regulated industries — delivered by engineers with hands-on experience.

13+
Years' Experience
CEng
Chartered Engineer
MIMechE
IMechE Member
BEng·MSc
Qualified
Sectors & Environments
Direct Contact
stephen@steadfastinnovation.co.uk +44 7851 150848
Nuclear Decommissioning
NDA Supply Chain
Nuclear Decommissioning Sites
Energy Infrastructure
Safety Case Engineering
Regulated Programme Delivery
High-Integrity Design
Capability

What We Deliver

Mechanical engineering across the full regulated programme lifecycle — from concept and design substantiation through to in-service and decommissioning support.

01
Mechanical Design & Substantiation

Detailed mechanical design and engineering substantiation to support nuclear safety cases and regulatory submissions. Experience working within strict nuclear quality frameworks.

02
Finite Element Analysis

Structural FEA and simulation against demanding loading conditions — seismic, operational and accident envelopes — to validate designs in regulated environments.

03
Plant Modification Management

Skilled and experienced in the production, presentation and safe management of Plant Modifications (PMPs) — managing modifications to nuclear equipment and systems through the full modification lifecycle, from initiation through design review gates to safe implementation and closeout.

04
Project Engineering Support

Hands-on project engineering support to get things moving — getting into the detail, driving work through design review gates and supporting commissioning and deployment on site. Experienced in acting as intelligent customer and providing technical assurance across complex nuclear project environments.

05
Calculations & Technical Reports

Peer-reviewable engineering calculations, technical reports and documentation packages produced to nuclear industry standards and appropriate quality plans.

06
Independent Technical Review

Experienced independent engineering review and technical assurance — providing a second pair of chartered eyes on designs, calculations or programme deliverables.

07
Disposability Assessment & Waste Package Assurance

Engineering support for the characterisation, packaging and disposability assessment of radioactive waste — ensuring waste packages meet disposability criteria and are suitable for safe interim storage and eventual geological disposal.

08
On-Site & Plant Implementation Support

Available to support the deployment of existing or novel equipment on nuclear licensed sites — including robotics and remote handling systems. Providing experienced engineering presence during installation, commissioning and operational handover in radiological and safety-critical environments.

Track Record

13+ Years Across the Nuclear Sector

A career built entirely within the nuclear sector — spanning operations, decommissioning, waste management and major programme delivery. Full details and references available on request, subject to client confidentiality.

Nuclear Fuel Cycle

Operating & Maintaining Key Systems in the Nuclear Fuel Cycle

Hands-on experience operating and maintaining critical systems within the nuclear fuel cycle — developing deep practical understanding of plant behaviour, regulatory requirements and the operational constraints that govern safe nuclear site working.

Nuclear Operations
Decommissioning

Project Engineering & Intelligent Customer — Legacy Decommissioning

Project engineering and intelligent customer role on a major nuclear decommissioning programme — retrieving high-hazard material from legacy nuclear power station decommissioning sites. Responsible for driving technical delivery, managing contractor interfaces and ensuring engineering outputs met site safety and regulatory requirements.

Decommissioning
GDF Programme

Senior Engineering Management — UK Geological Disposal Facility

Senior engineering management role supporting the concept design and requirements development for the future UK Geological Disposal Facility (GDF) — one of the most significant nuclear infrastructure programmes in the UK. Responsible for managing engineering requirements, concept development and cross-programme technical coordination.

GDF / Waste
Nuclear Waste

Disposability Advice, Guidance & Waste Package Engineering

Specialist expertise in providing advice and guidance on the disposability of nuclear waste — supporting waste producers in understanding disposability criteria, characterising waste streams and ensuring the suitable packaging of nuclear waste for safe interim storage and long-term disposal.

Waste / Disposability
About the Director

Led by a Chartered Engineer

Director, Steadfast Innovation Ltd — CEng MIMechE
Stephen McEvoy
Director · BEng (Hons) · MSc · CEng · MIMechE

Steadfast Innovation Ltd is a mechanical engineering consultancy led by Stephen McEvoy, a Chartered Mechanical Engineer with 13+ years' experience across the nuclear fuel cycle, decommissioning, waste management and major nuclear programme delivery.

The consultancy operates as a specialist independent resource — providing experienced, senior engineering input that regulated programmes need, without the overhead of a large consultancy. Clients work directly with the engineer delivering the work.

Well positioned to support the Cumbrian nuclear cluster and nuclear decommissioning sites across the UK, Steadfast Innovation delivers engineering support on-site, remotely, or in a hybrid arrangement depending on programme requirements.

Why Steadfast Innovation

The Difference

Chartered & Accountable

CEng MIMechE status — work delivered to a recognised professional standard with the accountability regulated clients expect.

Sector Experience

Direct nuclear sector background — not a generalist consultant mapping skills across. The frameworks, culture and requirements are familiar territory.

Direct Senior Access

You work with the chartered engineer — no junior resource, no account management layer between you and the person doing the work.

Flexible Deployment

On-site, remote or hybrid. Available for short-term surges, gap-filling or sustained programme support depending on what the project needs.

Geographic Coverage

UK & Ireland Coverage,
Based in the Heart of Britain

Based in Scotland and well positioned to support the Cumbrian nuclear cluster and wider UK nuclear estate. Engineering support is available across the full UK nuclear estate on-site, remotely or in a hybrid model depending on programme access requirements and security classifications. Previous experience includes working within regulated nuclear licensed site environments across the UK.

Discuss a Requirement

For a confidential discussion about engineering support on a nuclear or regulated programme, get in touch directly. References available on request.

Email
stephen@steadfastinnovation.co.uk
Mobile
+44 7851 150848
Location
Scotland — close to the Cumbrian nuclear cluster