All Locations
United Kingdom, Anglian Water, Peterborough, Central Services, Hattersley, Northern Ireland, Belfast, Scotland, Stepps, Severn Trent Water, Coleshill, Derby, South West Water, Bournemouth, Bristol, Exeter, Southern UK, Southern Water, Chatham, Falmer, Testwood WSW, Thames Water, Beckton, Coppermills, Hampton, Maple Lodge, United Utilities, Oswestry, Northumbrian Water (Essex & Suffolk), Essex, Suffolk
All Departments
Draughting/Detailing

About The Role

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 the 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.

About You

You'll be an experienced Mechanical CAD Technician with strong technical skills and a passion for delivering quality engineering solutions within a multidisciplinary environment.

Essential

  • Significant 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.

Desirable

  • Experience 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.

Join Us

If 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.

About Us

MWH Treatment is an integrated design and build provider working in the water sector. With over 1400 staff working across eight regional centres, supporting six long-term water sector frameworks and two recently won frameworks, operating both as a sole contractor but also in joint ventures and alliances. 

At MWH Treatment we believe that people matter. We know to build successful, creative teams we need a diverse workforce that can deliver innovative ways of thinking. We provide an environment where you will have the freedom to develop and grow to your full potential, creating opportunity by inviting, embracing, and celebrating difference, our goal as an employer is to motivate, and develop our employees. By fostering a diverse range of talents and perspectives we ensure we have the breadth of viewpoints, experiences, and skills needed to succeed. Embracing diversity of all kinds enables us to provide a work environment and culture that plays a key role in attracting and retaining the right people with the right skills. 

As signatories to the Armed Forces Corporate Covenant, we have made a promise to support our forces, working with the CTP to help ex veterans find work in the civilian world. We also support Mates in Mind, a charitable programme to improve and promote positive mental health in the workplace. We don’t just tick boxes; we live these values every day. 

What MWH offer 

Packages include -  

A competitive salary 

Hybrid Working (Jobs needs dependent) 

Car/car allowance (Jobs needs dependent) 

25 days holiday + Bank Holidays (with an additional 5 days available to buy) 

Contribution Pension scheme 

Life Assurance 

Health Insurance 

Private Medical Insurance 

And many more benefits including – cycle to work scheme, discounts and savings Hub, Kids Pass etc 
Apply

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