Critical Maintenance Engineer

Critical Maintenance Engineer

Permanent

• Field based role covering Oxfordshire & Berkshire
• Up to £30k base salary + overtime & bonus
• Want to work in a role where your expertise genuinely keeps people safe?
• At SMS Environmental, we don’t just maintain water systems — we protect the health of people in hospitals, schools, and workplaces across the UK.
• As a Critical Maintenance Engineer, you’ll play a vital role in ensuring water systems remain safe, compliant, and operating at the highest standards.
• We’re a people-first business where your knowledge is valued, your development is supported, and your work makes a real impact every single day.
• What’s in it for me?

We believe your skills deserve proper recognition — not just in pay, but in how you’re supported day-to-day

• 37.5 hours per week (Monday–Friday) with overtime available at double rate
• Company vehicle and fuel card for business use
• Company iPad and mobile phone
• Full uniform, tools, and PPE provided
• Private Medical Care or alternative Cash Plan after 2 years’ service
• Enhanced Sick, Maternity and Paternity Leave
• City & Guilds Affiliated Training Programme to support your professional growth
• Employee Discount Scheme – save up to £240 per month on food and groceries
• Clear progression pathways within a growing business
• Supportive team culture where your work is recognised

What will I be doing?

You’ll be part of our Operations team, working across a variety of client sites to deliver essential water hygiene and maintenance services. No two days are the same, but you can expect to:

• Carry out planned preventative maintenance (PPM) on water systems
• Conduct water sampling, flushing, and treatment activities
• Ensure compliance with ACOP L8, HSG274, and water hygiene regulations
• Accurately record all site work using company systems and software
• Identify and report system issues or non-compliances to Account Managers
• Build strong relationships with clients and represent SMS professionally on-site
• Support and mentor junior engineers where required

• You’ll have the autonomy to manage your workload, with the support of an experienced team behind you.
• What do I need to be successful?

We’re looking for someone who knows their stuff and takes pride in doing things properly. You’ll need

• Proven experience in water hygiene, water treatment, or Legionella control
• Strong understanding of water hygiene regulations and best practices
• Ability to work independently and manage your time effectively
• Confident communication and client-facing skills
• Awareness of Health & Safety practices (COSHH, risk assessments, etc.)
• Full UK driving licence

• If you’ve worked across sectors like healthcare, education, or commercial environments — even better.
• Who is SMS Environmental?
• We’re a nationwide leader in water hygiene, safety, and environmental compliance — known for doing things the right way.
• Our engineers are at the heart of everything we do, and we make sure they’re equipped, supported, and recognised for their work every step of the way.
• At SMS, you’re not just another engineer — you’re a trusted expert making a real difference.
• If you’re ready to take the next step in your water hygiene career and join a team that values quality, safety, and your long-term growth — we’d love to hear from you.
• Apply today and be part of something that truly matters.