Graduate Mechanical Design Engineer

Full time

Southampton, United Kingdom


We are currently recruiting for a Graduate Mechanical Engineer to join our in-house design team at our Head Office in Southampton. The Graduate Mechanical Engineer will work as part of a multi-disciplinary design team, working across all of our business sectors including; Process & Water, Energy, Oil & Gas and Nuclear.

As a Graduate Mechanical Design Engineer, you will report to the Mechanical Design Manager and will work very closely with a Mechanical Design Mentor where you learn how to produce detailed mechanical designs. Full support will be given to help you on your journey towards becoming chartered and you will be enrolled in to our Professional Forum, where you will meet with other Engineers also on the route to chartership.

This an excellent opportunity for a Mechanical Graduate, with a keen interest in design to join a professional team of designers, working on interesting projects within construction and engineering.

Role & Responsibilities

  • Working as part of a multi-disciplined team of engineers responsible for the production design deliverables for water, wastewater and bio solids treatment plants
  • Responsible for assisting in all aspects of mechanical design from site surveys of existing assets, optioneering, feasibility studies, detailed design and tender pricing
  • Production of procurement specifications for mechanical equipment; hydraulic calculations and production of detailed design construction drawings
  • Project managing third party designs and providing design assistance to installation and commissioning teams. Liaising with clients and subcontractors
  • Interpreting and understanding client requirements from client documents (drawings, specifications, correspondence, etc.)
  • Communication with client, external design resources and subcontractors to ensure compliance with specification
  • Liaison with Project Manager and procurement team to ensure correct purchase of plant and equipment
  • Assisting in the production of internal and external project specific design costs in liaison with Project Manager
  • Undertaking design calculations including hydraulics and pumping systems
  • Assisting with the preparation of CAD drawings in accordance with the company Drawing Manual
  • Undertaking design risk assessments to support detailed design proposals
  • Preparing detailed mechanical specifications
  • Producing Piping & Instrumentation Diagrams (P&ID’s)

Graduate Scheme

The Trant Graduate Scheme is offered to all Graduates joining the business. This a period of hands-on training and development over 24 months, where you are assigned a mentor to carry out training associated with your discipline, to enable you move from a Graduate Engineer, to a Junior Engineer to a full Engineer.

After completing the induction, you will join your engineering design team (being guided by your mentor) and will become competent in carrying out engineering tasks. At 12 months, you will have commenced working on your professional review Initial Professional Development (IPD) and will be actively engaged in the Professional Forum. At this time you should be ready to work independently as a Junior Engineer and by 24 months you should be classified as an Engineer and possibly even mentoring your own first year Graduate.


  • BEng (Hons) or MEng Mechanical Engineering
  • Awareness of Safety, Health, Environmental and Quality
  • Competent in Microsoft Office and CAD packages
  • Full driving licence

About Trant:

Trant Engineering has a long history of engineering and construction excellence, delivering high quality EPC engineering and construction services throughout the UK and overseas. We successfully design & deliver complex engineering projects in sectors such as Process & Water, Energy, Defence, Oil & Gas and Nuclear.

We offer clients a range of services including design, manufacturing, installation, construction and commissioning. Our in-house design and offsite manufacturing teams’ work closely to develop technology-based solutions with a strong focus on innovation and value engineering.

Our in-house multi-disciplinary services include civil, process, mechanical, electrical, instrumentation, control and automation, supplemented by the design and manufacture of Control Panels, MCC’s, PLC’s, SCADA and automation systems. We also provide a range of bespoke modular and containerised water & wastewater treatment and fuel conditioning systems.

We have over 750 employees and with a healthy forward order book with a targeted turnover of £150m this year, it is an exciting time to join a business where you can reach your full potential and develop your career.


At Trant, we offer the opportunity for career development within a professional and friendly safe working environment. We value our employee’s and strongly support and encourage individuals to gain professional qualifications, whilst offering the opportunity to work on projects of differing sizes within a variety of industry sectors.

Our company benefits package includes;

  • Competitive salary
  • 24 days holiday (increasing with service) + 8 bank holidays
  • Auto enrolment Pension Scheme
  • Flexible Working (based on a core-hours system)
  • Free onsite parking
  • Employee Assistant Program
  • Bike to Work Scheme

Equal Opportunities:

Trant Engineering Limited is committed to equal opportunities for all and we do not discriminate on the grounds of race, religion or belief, sexual orientation, gender reassignment, marital or civil partner status, gender, disability or age.

To apply for this position, please e-mail your CV to or call 02380 665544

*Please note, due to the volume of applications we are not always able to contact each applicant individually. If you have not heard from us within 10 working days of application, please assume that you have been unsuccessful on this occasion.

Apply online