Graduate Mechanical Engineer - Croydon

As part of our September 2026 Early Careers cohort, we are looking to hire a Graduate Mechanical Engineer to be based in our Croydon office.

You will be joining a hard working and experienced team specialising predominantly on wastewater and clean water projects, infrastructure, or non infrastructure.

The team works collaboratively across the UK and this role would be based in our Croydon office. You will have the opportunity to work on many key projects in the Water sector. One of our recent successes was the upgrade of Arley Sewage Treatment Works to comply with stringent water quality targets under the Water Framework Directive. Please find out more and explore other exciting projects you could be working on.

On joining Pell Frischmann you will become part of an expert, multidisciplinary team where you will gain training and experience in your chosen specialism. Working alongside an experienced multidisciplinary engineering team you will be engaged in projects from conception through to tender and construction. Schemes will include site visits, internal and client design review meetings, contractor and vendor liaison, etc.

Additionally, you will be enrolled onto our 2 year Graduate programme. This programme is built around the competence requirements of professional institutions and is a great way to kick start your career. You will have the opportunity to network with other graduates across the Group and develop key skills such as project management, business and personal effectiveness.

Key Responsibilities

• Assisting with mechanical design for water and wastewater treatment facilities
• Supporting the specification of mechanical equipment (pumps, valves, pipework, screens)
• Producing and checking mechanical calculations and technical schedules
• Supporting the preparation of drawings, datasheets, and design reports
• Working collaboratively with civil, electrical, and process design teams
• Supporting risk assessments, design reviews, and value engineering exercises
• Learning and applying water industry standards and best practice

Skills, Experience & Qualifications

• Qualifications
  • Essential: Degree (BEng or MEng) in Mechanical Engineering or a related discipline
  • Desirable: Working towards or interest in Chartership (IMechE or equivalent)
• Experience
  • Essential: Graduate or early career level (0-2 years)
  • Desirable: Experience through placements, internships, or a year in industry in water or process engineering
• Technical Skills
  • Essential: Understanding of core mechanical engineering principles
  • Desirable: Knowledge of water/wastewater treatment processes
• Ability to produce calculations and technical documentation
  • Essential: Familiarity with pumps, pipework systems, and rotating equipment
  • Desirable: Experience with non infra water assets and treatment plant design
• Health & Safety and Design Risk Management
  • Essential: Awareness of health & safety and design risk management
  • Desirable: Experience with non infra water assets and treatment plant design
• Software & Tools
  • Essential: Competence in Microsoft Office
  • Desirable: Experience with 2D/3D CAD tools (AutoCAD, Inventor, SolidWorks)
• Willingness to learn new engineering software
  • Essential: Familiarity with industry design tools or BIM environments
• Personal Skills
  • Essential: Strong communication and teamwork skills
  • Desirable: Ability to manage small design tasks independently
• Proactive approach
  • Essential: Client facing experience or site exposure

To be considered for this role you would need to have a keen interest in a career within Mechanical Engineering Design and come from a Mechanical Engineering Study Background too.

Right to Work Requirements
We are unable to provide visa sponsorship for this role due to salary thresholds. Applicants must already have the unrestricted right to work in the UK for the full duration of our 2 to 3 year graduate programme. Unfortunately, we cannot accept applications where the right to work is time limited and would expire before the programme ends (July 2029).