Commissioning Support Technician

Celnor; Greater London; On-site; GBP 28,000 - 30,000; Full time

Benefits offered by this job

22 days annual leave

Private healthcare

Pension contributions

Funding for qualifications

Salary reviews

Company van and fuel card

Job summary

Celnor is seeking a Commissioning Support Technician to join our Commissioning Team, supporting the safe and compliant delivery of commissioning works across clean water infrastructure. The role is remote with occasional nights and weekends, offering training and clear career progression.

You will assist with commissioning activities on clean water mains, treatment works, pumping stations and reservoirs, including pressure testing, chlorination, flushing and water quality sampling, while

Qualifications

• 1-3 years of experience in water network field activities or a similar clean water environment.
• A basic understanding of the water industry and clean water networks.
• Safety-conscious with a strong commitment to Health, Safety and Environmental (HSE) standards.

Responsibilities

• Support the safe, efficient and compliant delivery of commissioning activities across clean water infrastructure.
• Assist with commissioning works on clean water mains, treatment works, pumping stations and reservoirs, including hydrostatic pressure testing, swabbing, flushing, chlorination, dechlorination and water quality sampling.
• Prepare sites for commissioning by setting up equipment, carrying out pre-site surveys, inspections and monitoring activities.
• Monitor commissioning equipment, record operational data and maintain accurate test results, inspection reports and photographic records.
• Work in line with company, client and industry Health, Safety and Environmental (HSE) standards, policies and procedures.
• Support the maintenance, transportation and upkeep of commissioning equipment and vehicles while working collaboratively with colleagues, clients and stakeholders.
• Develop your technical skills through hands-on training and mentoring, with flexibility to support occasional evenings, weekends and short-notice operational requirements.

Skills

Water network experience

Clean water environment

HSE awareness

Team player

IT reporting

GIS mapping

Full UK driving licence

Flexibility

Education

EUSR Water Hygiene

SHEA Water

Hydrostatic Pressure Testing

NRSWA Operative

CSCS

First Aid

Valve operations

Job description

Commissioning Support Technician

Department: Commissioning Team

Employment Type: Full Time

Location: Remote

Reporting To: Andy Green

Compensation: £28,000 - £30,000 / year

Description

Commissioning Technician
Veriflo
Commutable to the M25.

Who we are

We are specialists in clean water and asset management, working in close partnership with our clients to plan, manage, and optimise water infrastructure projects. Our end-to-end services span investigation, verification, commissioning, leakage detection, and water quality support, ensuring reliable and efficient outcomes at every stage.

Part of the Celnor Group

Celnor Group is a UK-based environmental services group operating across the Testing, Inspection, Certification and Compliance (TICC) landscape. With a growing portfolio of specialist businesses, Celnor provides essential services that protect people, property and the environment.

While each business retains its own identity, culture and technical specialism, all are supported by a central group function that invests in people, systems and long-term sustainable growth.

Job detail

We’re looking for a Commissioning Support Technician to join our growing Commissioning Team, supporting the safe and compliant delivery of commissioning works across clean water infrastructure. Working alongside experienced colleagues, you'll assist with commissioning activities on clean water mains, treatment works, pumping stations and reservoirs, supporting pressure testing, chlorination, flushing, water quality sampling and equipment setup. This is a hands-on role offering excellent training, career progression and the opportunity to develop your technical skills within a growing team, with flexibility to support occasional nights, weekends and short-notice operational requirements.

What you will do

• Support the safe, efficient and compliant delivery of commissioning activities across clean water infrastructure.
• Assist with commissioning works on clean water mains, treatment works, pumping stations and reservoirs, including hydrostatic pressure testing, swabbing, flushing, chlorination, dechlorination and water quality sampling.
• Prepare sites for commissioning by setting up equipment, carrying out pre-site surveys, inspections and monitoring activities.
• Monitor commissioning equipment, record operational data and maintain accurate test results, inspection reports and photographic records.
• Work in line with company, client and industry Health, Safety and Environmental (HSE) standards, policies and procedures.
• Support the maintenance, transportation and upkeep of commissioning equipment and vehicles while working collaboratively with colleagues, clients and stakeholders.
• Develop your technical skills through hands-on training and mentoring, with flexibility to support occasional evenings, weekends and short-notice operational requirements.

Who you are

• 1-3 years' experience in water network field activities or a similar clean water environment.
• A basic understanding of the water industry and clean water networks.
• A positive, hands-on attitude with a willingness to learn and develop new technical skills.
• Safety-conscious with a strong commitment to Health, Safety and Environmental (HSE) standards.
• A team player with good communication, organisational and problem-solving skills.
• Comfortable using tablets, mobile devices and IT systems for reporting; experience with GIS mapping software is advantageous.
• Full UK driving licence and flexibility to work occasional evenings, weekends and short-notice call-outs.
• Desirable qualifications include EUSR Water Hygiene, SHEA Water, Hydrostatic Pressure Testing, NRSWA Operative, Confined Space, CSCS, First Aid and experience with valve operations (including CALM Networks), commissioning activities and reading RAMS and site drawings.

Join us

You’ll be joining a business where your contribution matters and where professionalism, integrity and teamwork are genuinely valued. As part of the wider Celnor Group, you’ll benefit from group-wide investment, shared expertise and opportunities to develop your career as the organisation continues to grow.

Benefits

• 22 days annual leave plus bank holidays
• Benenden Health & Lifestyle rewards scheme: private healthcare, 24/7 GP and retail discounts
• Extra holiday days for long service (up to +30 days)
• Pension contributions above statutory minimum
• Support for professional development: funding for qualifications and memberships
• Twice-annual salary reviews and performance appraisals
• Company utility van, fuel card and all tolls paid upfront.
• Contract mobile phone and tablet and / or toughbook

All offers are subject to DBS checks and Drug & Alcohol Testing.

Important information

Celnor Group and its businesses manage recruitment directly. We do not require agency support for this role and will only engage with recruitment partners from our preferred supplier list where necessary.

We may use technology, including AI-enabled tools, to support parts of the recruitment process. AI is not used for candidate screening, scoring or hiring decisions. All hiring decisions are made by people, for people. Our recruitment systems are ISO 42001 accredited, reflecting our commitment to ethical, transparent and responsible use of technology.