Senior CAD Technician (Mechanical)

MWH Treatment; Cloney (part of Straid); Hybrid; GBP 42,000 - 64,000; Full time

Benefits offered by this job

Hybrid working

Major UK projects

BIM & digital delivery

Career development

Collaborative environment

Engineering excellence

Job summary

MWH Treatment is seeking a Senior Mechanical CAD Technician to join our engineering team in the Northern Region. Based in a suitable location with hybrid working, you will lead mechanical design production, 3D modelling, and BIM coordination across major water and wastewater projects in the UK.

You will mentor junior CAD staff, ensure high-quality drawings, contribute to digital delivery practices, and coordinate with Civil, Electrical, ICA and Process disciplines to deliver safe, buildable

Qualifications

• Significant experience in multidisciplinary engineering design environments.
• Strong Mechanical CAD background in water, utilities, or infrastructure projects.
• Advanced 2D drafting skills with industry-standard CAD software.
• Strong 3D modelling capability and model-based design understanding.
• Proven experience using Revit and associated 3D design applications.
• Experience with Bentley ProjectWise or similar document management.

Responsibilities

• Lead production, coordination and QA of mechanical drawings and 3D models.
• Manage CAD workloads to meet programme, budget and quality.
• Act as Digital Delivery Champion, promoting BIM and digital workflows.
• Coordinate drawing production by offshore/remote resources.
• Ensure designs comply with CDM, specs and procedures.
• Coordinate outputs with Civil, Electrical, ICA and Process disciplines.
• Resolve technical queries and design coordination issues.
• Produce and review mechanical layouts, piping, equipment and drawings.
• Maintain drawing standards and document control.
• Collaborate with construction and supply chain to improve buildability.
• Support BIM delivery and model coordination throughout the project lifecycle.
• Promote safety culture and contribute to continuous improvement.
• Mentor junior CAD technicians and designers.

Skills

Multidisciplinary design

Mechanical CAD

2D drafting

3D modelling

BIM coordination

Offshore/remote coordination

Tools

Autodesk Revit

Bentley ProjectWise

Job description

Help Deliver Critical Water Infrastructure Projects

MWH Treatment is looking to strengthen our Engineering team with the appointment of a Senior CAD Technician (Mechanical) Based at a suitable location within our Northern Region, with hybrid working available.

This is a fantastic opportunity for an experienced Mechanical CAD professional to join a leading engineering business delivering major water and wastewater projects across the UK. As a senior member of the design team, you will play a pivotal role in the production, coordination and quality assurance of mechanical design deliverables, ensuring projects are delivered efficiently and to the highest technical standards.

Working within a multidisciplinary environment alongside Civil, Electrical, ICA and Process Engineers, you will help transform complex engineering concepts into high-quality designs that are practical, buildable and ready for successful delivery.

The Role

Reporting to the Regional Discipline Lead, you will be responsible for coordinating and managing mechanical CAD and BIM activities across a portfolio of projects.

You will support the delivery of innovative engineering solutions, champion digital engineering best practices and ensure all drawing outputs are completed safely, accurately and in line with company and industry standards.

This is an excellent opportunity for a technically strong designer who enjoys taking ownership, driving quality and supporting the development of modern digital delivery practices.

Key Responsibilities

• Lead the production, coordination and quality assurance of mechanical design drawings and 3D models.
• Manage CAD workloads and ensure design outputs are delivered to programme, budget and quality requirements.
• Act as a Digital Delivery Champion, supporting the adoption of BIM and digital engineering best practice across the business.
• Coordinate drawing production undertaken by offshore and remote design resources.
• Ensure all designs comply with CDM Regulations, project specifications and company procedures.
• Coordinate mechanical design outputs with Civil, Electrical, ICA and Process disciplines.
• Support the identification and resolution of technical queries and design coordination issues.
• Produce and review high-quality mechanical layouts, equipment arrangements, pipework designs and detailed engineering drawings.
• Ensure compliance with drawing standards, QA procedures and document control requirements.
• Work closely with construction teams and supply chain partners to improve buildability and deliver practical engineering solutions.
• Support BIM delivery and model coordination throughout the project lifecycle.
• Promote a positive safety culture and contribute to continuous improvement initiatives.
• Mentor and support junior CAD technicians and designers where required.

You’ll be an experienced Mechanical CAD Technician with strong technical skills and a passion for delivering quality engineering solutions within a multidisciplinary environment.EssentialSignificant experience working within a multidisciplinary engineering design environment.Strong Mechanical CAD background within water, utilities, industrial processing or infrastructure projects.Advanced 2D drafting skills with extensive experience using industry-standard CAD software.Strong 3D modelling capability and understanding of model-based design principles.Proven experience using Autodesk Revit and associated 3D design applications.Experience using Bentley ProjectWise or similar document management platforms.Understanding of mechanical engineering systems, including pumping systems, pipework, valves, treatment equipment and associated infrastructure.Broad experience in the use and application of engineering software and digital delivery tools.Good understanding of BIM standards, 3D modelling processes and quality assurance requirements.Strong appreciation of how mechanical systems are installed, operated and maintained.Excellent coordination, communication and organisational skills.Strong attention to detail and commitment to delivering right-first-time design outputs.Self-motivated, proactive and solutions-focused approach.

DesirableExperience working within the UK water and wastewater industry.Understanding of treatment works, pumping stations and related mechanical infrastructure.Knowledge of BIM Level 2 standards and digital engineering workflows.Experience coordinating offshore or remote design resources.Previous mentoring, supervisory or team leadership experience.Understanding of construction methodologies, off-site manufacture and buildability principles.Experience working on large-scale infrastructure or capital delivery programmes.

Why Join MWH Treatment?

At MWH Treatment, you'll have the opportunity to work on projects that make a real difference to communities and the environment.

• Hybrid and flexible working arrangements.
• The opportunity to work on major UK water and wastewater infrastructure programmes.
• Exposure to industry-leading BIM and digital delivery technologies.
• Ongoing investment in your professional development and career progression.
• A collaborative, supportive and innovative working environment.
• The chance to help shape engineering excellence and digital delivery across the business.

Join UsIf you're an experienced Senior Mechanical CAD Technician looking for the next step in your career and want to work on complex, high-profile infrastructure projects, we'd love to hear from you.Join MWH Treatment and help deliver the mechanical engineering solutions that support vital water and wastewater services for millions of people across the UK.