Mechanical Engineer

Mechanical Engineer (Wastewater Services)

Hydro International, part of Tarmac within the CRH Group, is a specialist wastewater engineering company operating in over 40 countries. This role joins our UK Wastewater Services team based in Nottingham, supporting water utility companies by upgrading and improving sewage treatment sites across the UK.

• Installing, commissioning, setting up and testing water filtration and mechanical systems on wastewater and sewage treatment sites.
• Carrying out site inspections, fault‑finding and surveys to support quotation and project planning.
• Accessing and interpreting technical instructions using mobile electronic devices.
• Working at height, in confined spaces and outdoors on live wastewater sites.
• Working away from home regularly, including overnight stays.
• Supporting work within Hydro workshops across the UK when required.
• Working collaboratively with engineers, technicians and other trades across the business.
• Maintaining a strong focus on safety, quality and regulatory compliance at all times.

• A current, valid UK driving licence.
• City & Guilds qualification (or equivalent).
• Completion of a recognised mechanical apprenticeship.
• Experience working in industrial, utilities or heavy engineering environments.
• Willingness to work outdoors, at height and in confined spaces.
• A flexible approach to working away from home.

• Secure, long‑term employment as part of Tarmac and the CRH Group.
• Industry‑leading safety standards and opportunity to build a lasting engineering career on essential UK infrastructure projects.
• Competitive salary, discretionary annual bonus and clear progression and advancement opportunities.
• Overnight subsistence allowance, additional stay‑away payments, life assurance (2× annual salary), pension scheme with employer contribution, company sick pay, minimum 23 days’ holiday plus bank holidays, flu vaccinations, DSE eye tests.
• Mental Health First Aiders and wellbeing support, ongoing training, qualifications and development opportunities.

Opportunities to progress within Hydro, Tarmac and the wider CRH Group, continued investment in engineering capability and professional qualifications, and the chance to work on critical UK wastewater infrastructure where your skills make a real difference.

Tarmac is committed to being a Forces‑friendly employer. If you’re transitioning from a military background, we’ll support your move into a successful civilian engineering career.

We’re proud to be part of CRH and to be an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for everyone. If you need any reasonable adjustments during the recruitment process, please let us know.