Water Technician - Level 3

Mitie; Greater London; On-site; GBP 32,000 - 42,000; Full time

Benefits offered by this job

DBS check

Career development

Training opportunities

Job summary

Marlowe (a Part of Mitie) is seeking a Water Technician Level 3 to support operation, maintenance, and monitoring of water treatment systems across client sites in London. The role emphasizes compliance, safety, and delivering accurate documentation in real time.

The ideal candidate will have strong analytical skills, experience with closed systems and water treatment disciplines, and a Full UK Driving Licence.

Qualifications

• Experience in water treatment, hygiene standards, and compliance.
• Ability to mentor junior technicians and interpret data.
• Full UK driving licence is required.
• Experience with closed systems, cooling towers, and boiler water treatment.

Responsibilities

• Perform testing, inspections, analysis, and remedial works on water systems.
• Interpret results and provide recommendations to maintain compliance.
• Mentor junior technicians and support wider operations.
• Carry out specialist tasks such as disinfection testing and sampling.

Skills

Analytical skills

Data interpretation

Mentoring

Driving licence

Tools

BSRIA sampling

Closed system analysis

Job description

Title: Water Technician - Level 3Location: LondonHours: 40 hours per week

At Marlowe (a Part of Mitie), our people are our greatest strength, and our promise is to create a place where you can thrive and be your best every day. We are looking for a Water Technician to support the operation, maintenance, and monitoring of water treatment systems, ensuring compliance and safety across our client sites.

This is a varied and technical role, suited to an experienced technician with strong analytical skills and the ability to work across multiple water treatment disciplines.

Role Responsibilities

• Complete allocated work within agreed timescales, ensuring all documentation is accurately recorded and submitted in real time
• Ensure all equipment is safe, fit for purpose, and used in line with company procedures and audit requirements (maximum one audit failure per year)
• Carry out a range of water treatment tasks including testing, inspections, analysis, and remedial works
• Interpret results and provide recommendations to maintain compliance and system performance
• Support wider business operations, including mentoring junior technicians and identifying development opportunities
• Conduct specialist tasks such as secondary disinfection testing, BSRIA sampling, closed system analysis, and plumbing remedial works

Required QualificationsApplicants must meet the following requirements:

• Technical water services (closed systems, cooling towers, boiler water treatment), or
• Plumbing and water treatment remedials
• Strong analytical, problem-solving, and reporting skills
• Ability to interpret technical data and make informed recommendations
• Experience supporting or mentoring junior team members
• Full UK Driving Licence

What We're Looking For

• Advanced knowledge of water treatment and hygiene standards
• Ability to manage multiple tasks across different technical disciplines
• Strong communication and client-facing skills
• Highly organised with excellent attention to detail
• Team player with the ability to work independently when required

What's in it for you?

• Competitive salary aligned to your experience and capability
• Opportunity to join a leading environmental services provider within the Mitie Group
• Exposure to a wide range of technical work across multiple disciplines
• Ongoing training, development, and career progression opportunities

There's a place for you at Mitie. Join us today.The successful candidate will be subject to an enhanced DBS check and satisfactory references.