Graduate Commissioning Engineer 2026

Overview

Assist in testing, troubleshooting, and commissioning water/wastewater systems

Key Responsibilities

• meica compliance
• commissioning planning
• testing troubleshooting
• system integration
• safety compliance
• client handover

Tasks

Commissioning engineers ensure that newly installed / modified water and wastewater treatment systems / equipment, and systems function safely and efficiently to meet project specifications and client requirements. They perform inspections, conduct functional tests, troubleshoot issues, calibrate & optimise systems to meet operational standards and regulatory requirements before they are officially put into operation and before handover to the client. -Ensure all MEICA installations meets the technical requirements of the project, including client specifications / Asset Standards and where applicable the Water Industry Mechanical and Electrical Standards (WIMES) -Ensure regular MEICA & Commissioning programme updates are included within the main contract programme in collaboration with the planner, and that regular commissioning meetings are held at the necessary intervals -Engaging with specialist support functions including DSEAR Hazardous Areas, Technical Authors, Document Controllers to ensure early engagement and clear understanding of project needs and deliverables including timescales -Working with the client Asset Operations Team to ensure full integration with the existing assets are maintained -Site based assisting experienced Commissioning Engineers in the testing and troubleshooting of new / modified equipment or systems, learning to create reports and ensuring all components function correctly to meet operational requirements -Ensuring a full appreciation of the MEICA requirements of the project including a full understanding of the commissioning requirements and interfaces with existing equipment and processes -Ensure works are completed in a safe manner, and all Galliford Try process and procedures are adhered to -Assisting with commissioning planning in a sequence that promotes efficient commissioning, test procedures, documenting findings, learning to identify and resolve faults and supporting the overall goal of bringing a system to its most effective point of use

Requirements

• collaboration
• adaptability
• driving licence
• engineering degree
• uk eligibility

What You Bring

This role is available for a September 2026 start, with the possibility of an earlier start date to suit yourself and the business. A full UK driving licence (or currently learning, you will be expected to have obtained a Full UK Driving Licence by 7th September 2026) and the eligibility to live and work in the UK without restriction is essential for this role. Become a part of the UK’s top-rated construction and civil engineering graduate programme. Recognised as the No.1 choice for graduates by TheJobCrowd and winner of the Environmental and Ethical Awareness category. We invite applications from graduates who are passionate about the industry and have achieved, or are on track to achieve a Bachelors or Masters degree in electrical/mechanical/process engineering (or similar) prior to September 2026. -A collaborator: You work and communicate effectively with lots of different people at different levels, providing valuable input into key projects. -An adapter: You have a flexible approach to work, able to adapt to new circumstances or change in plans and you can positively change direction when needed.

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Benefits

Step 2:Applicants who pass an initial screening stage will be invited to complete a pre-recorded video interview where you will be asked questions that allow you to showcase who you are; these will include self-awareness, curiosity and innovation, and your ability to articulate yourself well. As part of the graduate programme you will be expected to work in and around the location advertised, with the possibility for expanding travel to other projects and locations in the future. This may include staying away from home. Step 3: The final stage of our interview process is a virtual assessment centre made up of an individual interview, dynamic group tasks and a meet the team session to answer any questions you may have about the role or team you would be joining. If you decide to work towards professional qualifications, we will fully fund your qualification and pair you with a dedicated mentor. Our programme concludes with a celebration of you and a promotion within your role to start the next stage of your career. As a Disability Confident employer, we have committed to offer an interview to any candidate with a long-term health condition or disability that meet the essential criteria for the advertised position. Please contact the Resourcing Partner listed within the job advert if you believe this applies to you. We will also take the opportunity to discuss any adjustments required for your interview. Our purpose is to improve lives by building facilities and infrastructure, support our team's growth, promote best practices in our supply chain, and care for the environment. At Galliford Try, we cultivate an inclusive culture where everyone can reach their full potential, emphasising health, safety and wellbeing through our 'Be Well' program, which offers gym discounts and support for various wellbeing topics. Work with some of the best people in the industry in a full-time role, as you start an exciting and rewarding career where you will be enabled to add value to society. Our development programme lasts for two years and runs in parallel to your permanent job, covering 7 modules designed to bring out your interpersonal and leadership skills, and complement the hands-on technical experience that you will gain in your role. We are proud to be a platinum member of the 5% club member based on the quality of training and development of our ‘earn as you learn’ opportunities. Our Graduate Development Programme is designed to give you a rich, hands-on experience where you will develop your technical skills, grow your network and gain professional qualifications if you want to. -Private medical insurance -Agile working programme -28 days holiday excluding bank holidays, increasing with years of service, with an option of utilising our holiday purchase scheme -Two paid volunteering days per year -Company car / car benefit scheme (role dependent) -A range of benefit schemes including: Save as You Earn share purchase scheme, Employee Assistance Programme, Enhanced maternity and paternity leave, Pension scheme, Cycle to Work scheme and discounts on your favourite brands and holidays. -A starting salary of £31,000

About Galliford Try

-a national construction powerhouse with a history tracing back to two century‑old local builders. -now focusing on Building, Infrastructure (including Highways and Environment), and Specialist Services, delivering projects such as schools, hospitals, water barriers, and road networks. -expanded through strategic acquisitions—Morrison Construction in 2006, Miller Construction in 2014, and water and specialist services firms since 2021—to broaden its technical capabilities. -delivers projects in sectors like education, health, defence, justice facilities, major highways, water treatment infrastructure, fire‑safety upgrades, and digital infrastructure. -retains dual brands—Galliford Try in England & Wales and Morrison Construction in Scotland—to maintain regional strength. -has shown strong growth, recovering from COVID, reinstating dividends in 2021, and aiming to exceed £2.2 billion in revenue and achieve a 4% operating margin by 2030.

Sector Specialisms

Interview Process

-step 1: submit application -step 2: complete a pre‑recorded video interview -step 3: virtual assessment centre with an individual interview, group tasks, and a meet‑the‑team session