Graduate Commissioning Engineer — Water Infrastructure

Tilbury Douglas; Sutton Courtenay; On-site; GBP 29,000 - 38,000; Full time

Benefits offered by this job

Mentoring and guidance from engineers

Professional accreditation support

Car allowance

Pension contributions up to 8% matched

26 days annual leave

Private medical insurance

Wellbeing support 24/7

Volunteering days

Job summary

Tilbury Douglas is offering a Graduate Commissioning Engineer role across the Oxfordshire and Thames Valley region. You will gain hands-on experience testing and commissioning mechanical, electrical, process and control systems on water projects.

You’ll be mentored, supported toward professional accreditation, and exposed to a structured two-year development programme with real responsibility and progression opportunities.

Qualifications

• Degree in Mechanical Engineering, Electrical Engineering, Building Services Engineering or related discipline (2:2 or above)
• Full UK driving licence or working towards one by Feb 2027
• Interest in mechanical and electrical engineering and how systems work together
• Strong problem-solving skills with a practical, logical approach
• Good written and verbal communication skills for engagement with a wide range of people
• Collaborative mindset with enthusiasm to learn and take on responsibility
• Placement or site experience is desirable but not essential

Responsibilities

• Support the planning, coordination and delivery of commissioning activities across water and wastewater projects
• Develop understanding of mechanical and electrical plant, equipment, control systems and infrastructure
• Assist with pre-commissioning checks, testing and commissioning of installed equipment and systems
• Support preparation and review of commissioning plans, procedures, programmes and documentation
• Work with project engineers, site teams, designers, suppliers and subcontractors to ensure systems are ready for commissioning
• Help identify and resolve defects and technical issues during commissioning
• Support functional and performance testing to demonstrate safe operation and project compliance
• Maintain commissioning records, test documentation and evidence for project handover
• Learn how mechanical, electrical, process and control systems integrate within water treatment facilities
• Build knowledge of health, safety, environmental and quality requirements in commissioning
• Develop relationships with colleagues, clients, suppliers and stakeholders
• Grow skills in digital tools used to manage information, commissioning activities and delivery

Skills

Mechanical engineering

Electrical engineering

Building services engineering

Problem solving

Communication skills

Teamwork

Education

Mechanical/Electrical/Building Services degree

Job description

Tilbury Douglas is offering a Graduate Commissioning Engineer role across the Oxfordshire and Thames Valley region. You will gain hands-on experience testing and commissioning mechanical, electrical, process and control systems on water projects.

You’ll be mentored, supported toward professional accreditation, and exposed to a structured two-year development programme with real responsibility and progression opportunities.