Junior Commissioning Engineer

Full time

Southampton, United Kingdom

Project support


Trant Engineering Ltd has a long history of engineering and construction excellence, delivering high quality EPC engineering and construction services throughout the UK and overseas. We successfully deliver complex turnkey 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 800 employees and with a healthy forward order book with a projected turnover of £180m this year, it is an exciting time to join the business.

We are now immediately seeking to recruit a Junior Commissioning Engineer to be based on a clean water site in Southampton, working on various works packages. A clean water background is preferred and a water hygiene qualification is desirable.

Job Role

As the Junior Commissioning Engineer, you will report to the Commissioning Engineer on site. You may be an Electrician looking to becoming a Commissioning Engineer or recently started in a commissioning role. Either way, you will have demonstrable electrical experience within a water environment and practical skills to bring to the team. Working closely with the Commissioning Engineer on site, you will ensure that all commissioning activities are planned and executed to meet the project requirements in a safe and cost-effective manner.


  • Commissioning on a large Southern Water project
  • Ensuring the highest levels of health & safety at all times
  • Providing the Commissioning Engineer with progress updates and raise concerns where necessary
  • Ensuring the commissioning is to the appropriate levels of quality and to standards and manufacturers best practice
  • Reviewing Method Statements and Risk Assessments for all commissioning based activities
  • Assisting the production of commissioning plans, inspection test plans and training manuals
  • Co-ordinating with the systems integration team to carry out all Site Acceptance Tests and Telemetry commissioning
  • Reviewing P&ID diagrams under the supervision of the Commissioning Engineer and assist to provide strategies to commission plant and equipment in to existing processes in line with client specifications without compromising process and reducing risk
  • Attendance at commissioning meetings with representatives from our clients engineering and operational teams
  • Undertaking Factory Acceptance Testing for major items of plant
  • Liaising with our suppliers and subcontractors throughout the on-site commissioning process
  • The commissioning, interfacing and setting to work of equipment
  • Undertake or supervise the NICEIC electrical installation testing to C& G 2391 as requested
  • Demonstration of commissioned plant to our clients representatives to gain plant sign off prior to takeover
  • Assisting in the completion of commissioning records and diaries ensuring that all progress and equipment settings are recorded for the O&M manuals
  • Assisting the design team by undertaking site visits to gather information for the purposes of tendering or design prior to construction
  • Assisting the design team and prepare electrical designs ensuring compliance with the current IEE regulations and all other relevant specifications

Qualifications, competencies and skills

  • An industry applicable ONC or City & Guilds / NVQ equivalent
  • CSCS card
  • 1st Aid trained
  • EUSR Water Hygiene trained
  • Significant industrial electrical background
  • Understanding the importance of promoting a safety culture on site
  • Strong communication skills – both written and oral
  • Water & Waste Water Industry background
  • Working knowledge of Microsoft office packages

Desirable Criteria

  • WIMES Standards familiarisation
  • Experience of working within the Utilities Industry
  • BS7671 17th Edition training
  • C&G 2394 & 2395 Inspection & Testing

Equal Opportunities & Diversity

Trant Engineering Limited is committed to equal opportunities for all and we never discriminate on the grounds of race, religion or belief, sexual orientation, gender reassignment, marital or civil partner status, gender, disability or age.

How to apply

To apply for this position, please send your CV to lynne.crawford@trant.co.uk or contact our Internal Recruitment Team on 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