At a Glance
- Tasks: Install and maintain innovative water filtration systems on wastewater treatment sites across the UK.
- Company: Join Hydro International, part of Tarmac, a leader in sustainable engineering solutions.
- Benefits: Enjoy competitive salary, bonuses, generous holiday, and ongoing training opportunities.
- Other info: Work in a supportive, diverse environment with clear paths for career progression.
- Why this job: Make a real impact on essential UK infrastructure while enjoying hands-on, varied work.
- Qualifications: Must have mechanical engineering experience, a valid UK driving licence, and a flexible approach.
The predicted salary is between 30000 - 40000 £ per year.
Hydro International is now proudly part of Tarmac, within the wider CRH Group — combining specialist wastewater engineering expertise with the scale, stability and long‑term opportunity of one of the UK’s leading construction materials businesses. With over 40 years of engineering excellence, Hydro International provides advanced water and wastewater solutions that help municipal and industrial customers improve performance, reduce environmental impact and protect communities from flooding and pollution. Operating in more than 40 countries and supported by an international distribution network, Hydro plays a key role within CRH Infrastructure Products, leading the sector with innovative, sustainable and safety‑first solutions.
This role sits within our UK Wastewater Services (UKWWS) team, supporting water utility companies by upgrading and improving sewage treatment sites across the UK.
The Role
We are looking for an experienced and qualified Mechanical Engineer to join our Dumfries‑based team. This is a hands‑on, site‑based role where you’ll work on wastewater treatment sites across the UK, installing, commissioning and maintaining specialist water filtration and mechanical systems. The role involves regular working away from home, including overnight stays, and occasional work within Hydro workshops nationwide. If you enjoy practical engineering work, problem‑solving on site and travelling as part of a close‑knit engineering team, this role offers real variety and long‑term career potential.
What You’ll Be Doing
- 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 active wastewater sites
- Working away from home regularly, including overnight stays
- Supporting work in 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 compliance at all times
About You
You’ll be an experienced mechanical engineer who brings:
- 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, in confined spaces and at height
- A flexible approach to working away from home
Why Join Us?
As part of Tarmac and the CRH Group, you’ll benefit from secure, long‑term employment, strong safety standards and the opportunity to build a lasting engineering career. Our benefits include:
- Competitive salary
- Discretionary annual bonus
- 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
- Clear opportunities for progression and advancement
What Hydro International (Part of Tarmac) Offers You
A culture that values development, progression and internal promotion. Investment in engineering capability and professional qualifications. Opportunities to progress within Hydro, Tarmac and the wider CRH Group. The chance to work on essential UK infrastructure where your skills make a real difference.
Tarmac is committed to being a Forces‑friendly employer. If you’re coming from a military background, we’ll support your transition and help you build a successful career with us. We’re proud to be part of CRH, and even prouder 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, just let us know, we’re here to support you.
Ready to build your future? Click ‘Apply’ to get started. Please note: we sometimes close roles early due to high interest, so don’t wait too long!
Mechanical Engineer employer: Tarmac
Hydro International, now part of Tarmac and the CRH Group, is an exceptional employer offering a secure and rewarding career for Mechanical Engineers in Dumfries. With a strong focus on employee development, competitive benefits, and a commitment to safety and inclusivity, you will have the opportunity to work on vital UK infrastructure projects while enjoying a supportive and collaborative work culture that values your contributions and growth.
StudySmarter Expert Advice🤫
We think this is how you could land Mechanical Engineer
✨Tip Number 1
Network like a pro! Reach out to your connections in the engineering field, especially those who work in wastewater or construction. A friendly chat can lead to insider info about job openings that aren't even advertised yet.
✨Tip Number 2
Get hands-on! If you can, volunteer for projects or internships related to mechanical engineering. This not only boosts your CV but also shows potential employers that you're passionate and ready to dive into practical work.
✨Tip Number 3
Prepare for interviews by brushing up on your technical knowledge and problem-solving skills. Be ready to discuss specific projects you've worked on and how you tackled challenges. We want to see your engineering mindset in action!
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen. Plus, it shows you’re genuinely interested in joining our team at Hydro International. Let’s get you started on this exciting journey!
We think you need these skills to ace Mechanical Engineer
Some tips for your application 🫡
Tailor Your CV:Make sure your CV is tailored to the Mechanical Engineer role. Highlight relevant experience, especially in wastewater treatment and mechanical systems. We want to see how your skills match what we're looking for!
Craft a Compelling Cover Letter:Your cover letter is your chance to shine! Use it to explain why you're passionate about this role and how your background makes you a great fit. We love seeing enthusiasm and a personal touch.
Showcase Your Problem-Solving Skills:In your application, give examples of how you've tackled challenges in previous roles. We value practical engineering work and problem-solving, so let us know how you've made a difference on site!
Apply Through Our Website:Don't forget to apply through our website! It’s the best way to ensure your application gets to us directly. Plus, it shows you're serious about joining our team at Hydro International.
How to prepare for a job interview at Tarmac
✨Know Your Stuff
Make sure you brush up on your mechanical engineering principles, especially those related to wastewater treatment systems. Familiarise yourself with the specific technologies and processes Hydro International uses, as this will show your genuine interest in the role.
✨Showcase Your Problem-Solving Skills
Prepare examples of past experiences where you've successfully tackled engineering challenges. Be ready to discuss how you approached these problems, what solutions you implemented, and the outcomes. This is crucial for a hands-on role like this one.
✨Be Ready for Practical Questions
Expect technical questions that assess your understanding of installation, commissioning, and maintenance of mechanical systems. Practise explaining your thought process clearly, as communication is key when working in teams on site.
✨Emphasise Your Flexibility
Since the role involves working away from home and in various environments, highlight your willingness to travel and adapt to different working conditions. Share any relevant experiences that demonstrate your flexibility and commitment to teamwork.
