Senior Water Technician

Department: Water Treatment Services
Reporting to: Technical Manager / Operations Manager

Role Purpose

We are seeking a Senior Water Technician / Water Treatment Engineer to support the safe, efficient, and compliant operation of water systems across multiple sites.

You will be responsible for monitoring, testing, servicing, and reporting on a wide range of water systems, including:

• Hot & cold potable water systems
• Closed-loop systems
• RO (Reverse Osmosis) and Demin systems
• Boiler and condensate systems
• Process water systems
• Associated water treatment plant and equipment

This is a hands-on technical and compliance-focused role, ensuring all systems meet:

• Statutory regulations
• Water hygiene standards
• Legionella control requirements
• Environmental standards
• Internal procedures

Key Responsibilities

1. Water Testing & Site Work

 

• Temperature monitoring and system inspections
• Water sampling and Legionella testing
• Closed-system checks and hygiene tasks
• Cold-water tank inspections and disinfection (e.g. showerheads)
• Field testing using handheld meters and kits

Key parameters include:

• pH, temperature, conductivity, TDS
• Hardness, chlorine, inhibitor levels
• System-specific water quality indicators

You may also test:

• RO and Demin water
• Boiler feedwater and condensate
• Process and discharge water

 

2. Fault Finding & Analysis

 

• Interpret test results and identify trends/issues
• Recommend corrective actions (e.g. dosing adjustments, further sampling, escalation)
• Support basic troubleshooting:
  • Flow/pressure checks
  • Filter changes
  • Chemical top-ups
  • RO system support and cleaning
• Escalate complex issues where required

 

3. Systems & Equipment

You will work with:

• Water softeners
• RO and Demin systems
• Chemical dosing systems
• Filtration systems
• Closed-loop heating/cooling systems
• Boiler feedwater and condensate systems
• Pumps, valves, meters, and sampling equipment

 

4. Compliance, Reporting & Documentation

Accurate record keeping is essential.

You will complete:

• Service and site visit reports
• Water sampling and test records
• Compliance and corrective action reports
• RAMS documentation
• Chemical usage logs

You may also support:

• Weekly / monthly / quarterly reports
• RO performance reporting
• Boiler and flow meter readings
• Wastewater discharge records
• Legionella monitoring logs

All reporting must clearly capture:

• Work completed
• Results and findings
• Issues and risks
• Actions taken or recommended

 

5. Health, Safety & Environmental

You will work in full compliance with HSE procedures, including:

• Following RAMS and site rules
• Safe chemical handling
• Correct PPE usage
• Reporting hazards, incidents, and near misses
• Protecting water quality and environment
• Confidentiality of systems and data is required at all times.

 

6. Client & Site Responsibilities

This is a field-based, client-facing role.

You will:

• Work with facilities and operations teams
• Communicate findings clearly and professionally
• Coordinate with contractors and internal teams
• Manage your own site schedule and access requirements
• Ensure all planned and reactive work is completed on time

Experience & Qualifications

Experience in one or more of the following:

• Water treatment / water hygiene
• Environmental science or chemistry
• Plumbing (including industrial plumbing)
• Facilities / building services maintenance
• Engineering or utilities systems

Desirable:

• Legionella control experience
• Closed-loop systems
• RO / Demin systems
• Boiler water treatment
• Chemical dosing
• Industrial, pharma, or manufacturing environments

A basic mechanical aptitude and ability to interpret test results is essential.

A full clean driving licence is required.

 

Working Conditions & Package

Field-based role with travel across multiple sites.

Environments include:

• Plant rooms and utilities spaces
• Industrial and manufacturing facilities
• Rooftops and external installations
• Chemical storage areas

Package includes:

• Competitive salary (DOE)
• Company vehicle + fuel card
• Laptop and mobile phone
• Tools, equipment, PPE, uniform
• Training and development opportunities

Flexibility required depending on workload and compliance needs.

For further information on this Water Treatment Engineer role in please contact Caroline Kingston on 0868395531  or email caroline@hero.ie

Check out all our open jobs on our HERO Recruitment website – https://www.hero.ie/

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Data can only be transferred outside of the EEA on the basis of standards contractual clauses, to a country for whom an adequacy decision has been given by the European Commission or where the express permission of the data subject has been given.  You have supplied us with your personal data in the process of applying for a position.  Our client company may have personnel outside of the EEA who will review you data.  We will apply the appropriate criteria in respect of the data transfer depending on the location of those personnel.