MEICA Commissioning Manager

Company: Costain Group PLC

Location: Southampton

Posted: March 24th, 2026

Job Description

Otterbourne is a major Water Supply Works located between Southampton and Winchester supplying water to the surrounding area of over 250,000 homes. As part of Southern Water’s AMP8 investment programme the Works will be undergoing major upgrades including new pre-disinfection treatment and wastewater recovery treatment streams, plus a programme of works to mitigate risks with power resilience. Design efforts in evaluating process solution options are already underway to inform design development and a construction to programme that will run to 2030 to deliver the project’s DWI Regulatory outputs.

Job Description

Otterbourne is a major Water Supply Works located between Southampton and Winchester supplying water to the surrounding area of over 250,000 homes. As part of Southern Water’s AMP8 investment programme the Works will be undergoing major upgrades including new pre-disinfection treatment and wastewater recovery treatment streams, plus a programme of works to mitigate risks with power resilience. Design efforts in evaluating process solution options are already underway to inform design development and a construction to programme that will run to 2030 to deliver the project’s DWI Regulatory outputs.

CMDP+ is looking to strengthen their Commissioning team with a MEICA Delivery Manager and a MEICA Commissioning Manager for our Southern Water Framework. MWH Treatment and Costain Group are part of the CMDP+ joint venture that will deliver a range of construction schemes to maintain and improve Southern Water’s water supply and wastewater treatment works within the South and Southeast regions.

The Joint Venture has been set up specifically to execute the 5-year (2025 – 2030) AMP8 capital delivery framework. We will be delivering a programme of works up to £1bn over the 5-year period consisting of both heavy civil engineering and mechanical and electrical activities.

MEICA Delivery Manager plays a critical role in ensuring that systems and components are designed, installed, tested, and verified to meet the project's requirements. This position bridges the gap between design, construction, and operational performance.

At Costain, we believe diverse perspectives drive innovation. If you’re passionate about making a positive impact and think you can bring value to our team, we’d love to hear from you—even if you don’t tick every box. Your unique skills and experiences could be exactly what we need.

Responsibilities

Some Duties Include

Qualifications

About Us

Costain helps to improve people’s lives with integrated, leading edge, smart infrastructure solutions across the UK’s energy, water, transportation and defence markets. We help our clients improve their business performance by increasing capacity, improving customer service, safeguarding security, enhancing resilience, decarbonising and delivering increased efficiency. Our vision is to be the UK’s leading smart infrastructure solutions company. We will achieve this by focusing on blue chip clients whose major spending plans are underpinned by strategic national needs, regulatory commitments, legislation or essential performance requirements. We offer our clients leading edge solutions that are digitally optimised through the following five services which cover the whole lifecycle of their assets: future-shaping strategic consultancy; consultancy and advisory; digital technology solutions; asset optimisation and complex programme delivery. Our culture and values underpin everything we do.

Costain appreciate the time and effort taken when applying for one of our positions but, due to the high volume of responses, we are unable to provide individual feedback on candidates at application phase.

We do share individual feedback following an interview .

A Disability Confident employer will generally offer an interview to any applicant that disclose they have a disability and meets the minimum criteria for the job as defined by the employer.

It is important to note that in certain recruitment situations such as high-volume, seasonal and high-peak times, the employer may wish to limit the overall numbers of interviews offered to both disabled people and non-disabled people.

For more details please go to the Disability Confident website:

https://www.gov.uk/government/collections/disability-confident-campaign

About The Team

CMDP is a joint venture between Costain and MWHT and delivers a range of schemes to maintain and improve Southern Water’s water supply and wastewater treatment works in the eastern half of its region (Kent & Sussex).

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