Commissioning Specialist
full-time•London•$38k - $46k
About this role
Commissioning Specialist
Department: Commissioning Team
Employment Type: Full Time
Location: Remote
Reporting To: Rob Hughes
Compensation: £38,000 - £46,000 / year
Description
Veriflo
Commissioning Specialist
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.
Commissioning Specialist
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 details
We are seeking a field-based Commissioning Specialist to deliver end-to-end commissioning works on clean water mains from 80mm to 1000mm. Working closely with the Field Supervisor and Project Manager, the role ensures safe, compliant, and efficient project delivery, acting as the key on-site point of contact. Responsibilities include pressure testing, chemical dosing, chlorination, flushing, and water quality sampling across trunk mains and water assets, with flexibility required to support field operations at short notice.
What you will do
Job details
We are seeking a field-based Commissioning Specialist to deliver end-to-end commissioning works on clean water mains from 80mm to 1000mm. Working closely with the Field Supervisor and Project Manager, the role ensures safe, compliant, and efficient project delivery, acting as the key on-site point of contact. Responsibilities include pressure testing, chemical dosing, chlorination, flushing, and water quality sampling across trunk mains and water assets, with flexibility required to support field operations at short notice.
What you will do
- Ensure full compliance with company, client, and industry HSE, safety, and environmental standards.
- Deliver commissioning activities including pressure testing, swabbing, flushing, chlorination, dechlorination, and asset commissioning.
- Conduct pre-site, live, and post-site surveys, inspections, and briefings to ensure safe and compliant delivery.
- Liaise with internal teams, clients, contractors, and suppliers to maintain clear and effective communication.
- Monitor and analyse dosing equipment performance, including flow, pressure, turbidity, and chlorine levels, to ensure compliance.
- Identify, troubleshoot, and escalate commissioning issues to protect water quality, end users, and the network.
- Maintain accurate records, manage equipment, support alternative workstreams when required, and mentor technicians, with flexibility for occasional extended or short-notice shifts.
Who you are
- Minimum 3 years’ experience in a commissioning role, with exposure to pressure testing, chlorination, and dechlorination (training provided where required).
- Relevant industry certifications such as EUSR Water Hygiene, SHEA Water, Hydrostatic Pressure Testing, NRSWA, Confined Space, and CSCS/SSSTS/SMSTS.
- Strong practical industry knowledge with the ability to brief RAMS and uphold the highest safety and compliance standards.
- Competent in IT systems including GIS mapping tools, PDA/Tablet use, and online reporting software.
- Proven ability to take ownership of tasks, coordinate resources, lead activities on site, and drive work through to completion.
- Experience in valve operations (including CALM Networks) and effective collaboration across field and office teams.
- Full UK driving licence and flexibility to work days, nights, and weekends in line with operational requirements.
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
- 24 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
All offers are subject to DBS checks and Drug & Alcohol Testing.
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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.
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.
Other facts
Tech stack
Commissioning,Pressure Testing,Chlorination,Dechlorination,Water Quality Sampling,HSE Compliance,Communication,Troubleshooting,IT Systems,RAMS Briefing,Valve Operations,GIS Mapping,Team Collaboration,Flexibility,Mentoring,Record Keeping
About Celnor
Celnor is a group of complementary businesses offering a broad range of inspection, testing, certification and compliance (TICC) services to commercial clients across the UK.
Our member companies provide the data, consulting and insight our customers need to manage sustainable development and compliance with environmental and occupational regulations.
Team size: 1,001-5,000 employees
Website: https://celnor.com/
LinkedIn: Visit
Industry: Environmental Services
Founding Year: 2023
What you'll do
- The Commissioning Specialist will deliver end-to-end commissioning works on clean water mains, ensuring safe and compliant project delivery. Responsibilities include pressure testing, chlorination, flushing, and water quality sampling.
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Frequently Asked Questions
What does Celnor pay for a Commissioning Specialist?
Celnor offers a competitive compensation package for the Commissioning Specialist role. The salary range is GBP 38k - 46k per year. Apply through Clera to learn more about the full compensation details.
What does a Commissioning Specialist do at Celnor?
As a Commissioning Specialist at Celnor, you will: the Commissioning Specialist will deliver end-to-end commissioning works on clean water mains, ensuring safe and compliant project delivery. Responsibilities include pressure testing, chlorination, flushing, and water quality sampling..
Why join Celnor as a Commissioning Specialist?
Celnor is a leading Environmental Services company. The Commissioning Specialist role offers competitive compensation.
Is the Commissioning Specialist position at Celnor remote?
The Commissioning Specialist position at Celnor is based in London, United Kingdom. Contact the company through Clera for specific work arrangement details.
How do I apply for the Commissioning Specialist position at Celnor?
You can apply for the Commissioning Specialist position at Celnor directly through Clera. Click the "Apply Now" button above to start your application. Clera's AI-powered platform will help match your profile with this opportunity and guide you through the application process. You can also learn more about Celnor on their website.