Senior CAD Technician (Mechanical) - UK Wide

MWH Treatment Limited; United Kingdom; Hybrid; GBP 45,000 - 65,000; Full time

Job summary

MWH Treatment Limited is seeking a Senior CAD Technician (Mechanical) to join the engineering team in the UK with hybrid working. You will coordinate and deliver mechanical CAD/BIM outputs for water and wastewater infrastructure projects, driving design quality and buildability.

The role involves leading 2D/3D design, coordinating with offshore resources, and mentoring junior CAD technicians while adopting BIM and digital delivery practices across multidisciplinary projects.

Qualifications

• Multidisciplinary design experience in a professional engineering setting.
• Strong mechanical CAD background in water, utilities, industrial processing or infrastructure projects.
• Solid BIM knowledge and experience with Revit and related design tools.

Responsibilities

• Lead mechanical design drawings, 3D models and QA checks to programme, budget and quality requirements.
• Coordinate CAD workstreams and manage workloads across design teams and offshore resources.
• Promote BIM and digital delivery best practices across the business.
• Coordinate with Civil, Electrical, ICA and Process disciplines to ensure integrated outputs.
• Ensure drawings comply with CDM, project specs and company procedures.

Skills

Mechanical CAD

Revit

3D Modelling

2D Drafting

BIM

Coordination

Offshore coordination

Documentation management

Tools

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 in a suitable location within the UK, 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.

We offer:

• 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.