Senior Mechanical Engineer - Water & Wastewater Projects

OCU; Wales; On-site; GBP 65,000 - 85,000; Full time

Job summary

OCU is seeking a Senior Mechanical Engineer to lead water and wastewater projects from Bridgend, Wales. This permanent, full-time, office/site-based role offers UK and international project exposure and a path to Chartered status. You will design, review, and deliver robust mechanical solutions across multi-disciplinary teams.

Travel to project sites or client offices will be required; you will mentor juniors and drive technical excellence within a fast-growing company.

Qualifications

• Degree in Mechanical Engineering or equivalent; Chartered or Incorporated Engineer (IMechE or equivalent) or near completion.
• Hands-on experience in water and/or wastewater engineering design, including design & build projects in the UK.
• Strong technical knowledge of water sector infrastructure, WIMES, UK codes, and asset standards.
• Experience collaborating with contractors to implement engineering solutions effectively.
• Excellent interpersonal, verbal, and written communication skills; able to work independently and within multidisciplinary teams.
• Highly motivated, organised, and committed to delivering technical excellence.
• Flexible and willing to travel to project sites or client offices when required.

Responsibilities

• Collaborate with multidisciplinary teams across the UK and internationally to deliver successful water and wastewater projects.
• Lead and contribute to projects, ensuring delivery on time, on budget, and in line with OCU business governance.
• Provide expert guidance on engineering design deliverables, including calculations, drawings, and technical reports, following relevant codes and Purestream design standards.
• Ensure quality and safe design of technical solutions in accordance with UK and international standards.
• Communicate technical solutions clearly to clients, contractors, and colleagues through presentations, workshops, and safety reviews (including HAZOPs and ALMs).
• Engage with clients and construction teams on Design & Build projects to provide practical, innovative mechanical solutions.
• Assess existing water and wastewater infrastructure to develop mechanical designs for new and upgrade projects.
• Support compliance with CDM regulations, producing design and environmental risk assessments where required.

Skills

Engineering design

Team collaboration

Communication skills

Education

Mechanical Engineering degree

Chartered or Incorporate Engineer (IMechE) or near completion

Job description

OCU is seeking a Senior Mechanical Engineer to lead water and wastewater projects from Bridgend, Wales. This permanent, full-time, office/site-based role offers UK and international project exposure and a path to Chartered status. You will design, review, and deliver robust mechanical solutions across multi-disciplinary teams.

Travel to project sites or client offices will be required; you will mentor juniors and drive technical excellence within a fast-growing company.