Graduate Commissioning Engineer

MWH Treatment Limited; Hattersley; Hybrid; GBP 28,000 - 32,000; Full time

Job summary

A leading water industry contractor in the UK is seeking Graduate Commissioning Engineers for their Professional Development Programme starting in 2026. This position involves site-based work optimizing water treatment processes and requires a degree in Chemical, Electrical or Mechanical Engineering. The role offers travel opportunities and a structured three-year training program with mentoring. Competitive salary and various employee benefits are included.

Benefits

Competitive starting salary

25 days holiday + Bank Holidays

Flexible pension scheme

Private medical insurance

Gym memberships

Cycle to Work scheme

Employee Assistance Scheme

Qualifications

• Must be on track to achieve a relevant engineering degree.
• Ability to travel and spend time away from home for site visits.
• Full UK driving license preferred for site access.

Responsibilities

• Work closely with all disciplines on-site to improve water quality.
• Test new equipment and optimize water treatment processes.
• Rotate between design office and various sites.

Skills

Communication skills

Team player

Self-motivation

Flexibility

Education

Degree in Chemical, Electrical, or Mechanical Engineering

Job description

We’re excited to expand our Engineering division with Graduate Commissioning Engineers to join our Professional Development Programme for our 2026 intake, based in the Hattersley region working on our Unites Utilities framework.

Why Choose MWH?

Its your career, lets shape it together! We pride ourselves on putting people first with an inclusive and rewarding culture where success is recognised. Dedicated to attracting, retaining and enabling the development of our graduates to maximise potential. The graduate programme is tailored to your needs with a flexible and varied learning environment, you’ll feel empowered to make decisions and harness your knowledge and practical skills. The sky’s the limit!

Grow with us!

As a growing company within the RSK group, we can offer a multitude of opportunities. MWH Treatment is preparing to play its part as one of the UK’s leading Design and Build Contractors in the Water Industry. In response to the growing demand to improve further the UK water quality in our rivers and bathing waters amongst other challenges, the investment in the water industry is far exceeding any other time. MWH Treatment, as part of the RSK group, specialise in creating and providing practical, sustainable outcomes. Our engineers pioneer and perfect solutions. The variety of work we offer provides a platform for you to develop and master your subject to build a fruitful and purposeful career.

What will you be doing?

• Working closely with all disciplines on site, seeing how they all contribute to improving drinking water quality or better protecting the environment
• Site based role carrying out the testing of new equipment and optimisation of water treatment processes
• May mean travelling away from home each week but working in varied and exciting locations around the region
• Includes a placement in design office and other parts of the business
• Suitable for chemical, mechanical or electrical engineers

What is the Graduate Programme?

Our Graduate Programme is shaped to enable you to successfully achieve professional status with the relevant professional institutions, whilst giving you exposure to everything you need to start your career on a successful path.

• A committed and structured three-year Graduate Programme.
• Mentorship dedicated to you to support your career
• A structured training plan.
• UK wide program with opportunities to network with your peers
• An opportunity to rotate in both design and build (hands on site experience)
• Practical, on the job training within your team of industry experts.

What's in it for me?

Along with of structured learning and development throughout your graduate scheme and beyond, MWH also offer a variety of benefits, such as: A competitive starting salary6 monthly salary increases, rewarding your commitment to your development and training25 days holiday + Bank Holidays (with an additional 5 days available to buy)Some flexibility with hybrid workingCompetitive and flexible contribution pension schemePrivate medical insuranceGym membershipsTechnology salary sacrifice schemeCycle to Work schemeEmployee Assistance Scheme - free mental health support, financial adviceAnd many more benefits including Sports and Social club membership

What will I need to be considered?

Have achieved or on track to achieve your degree in Chemical, Electrical or Mechanical Engineering. Able to spend time away from home, travelling to sites around the region. Eligible to work in the UK. Unfortunately, this role does not meet the minimum salary requirements for sponsorship on this role. Have the ability to travel to the office and sites (some of our sites are difficult to access through public transport) Meaning a full UK driving licence would be preferred. Flexibility - Successful candidates will need to be flexible and willing to spend time in other offices and sites. Great communication skills. (Written and Verbal) Self- motivated – attitude is key, it's your career! A team player.

What happens next?

Apply – O ur dedicated early careers recruiter will review your application and be in touch. Timeframe – Within 4 weeks you will hear if you've been successful to the next stage. Process – You will be invited to complete a video interview, followed by an in-person or teams interview with two of our hiring managers. You will be given the opportunity to come and meet the team in office or on site. It's important to us that you are given every opportunity to know you're making the right choice for you and your career.