Slurry Treatment Plant Engineer

Slurry Treatment Plant Engineer will be responsible for ensuring the STP Manager is updated on all issues as soon as possible, to mitigate the risk of production downtime.
Scroll to content

The Align opportunity

The construction of the Chiltern tunnels and Colne Valley Viaduct are two of the most eye-catching and challenging engineering projects on the HS2 route. Align is the joint venture created to achieve this task – we've created one integrated team of specialists from three partners with global reputations: Bouygues Travaux Publics, VolkerFitzpatrick and Sir Robert McAlpine.

By joining Align you can become an integral part of this landmark project – with the opportunity to develop your expertise as the project progresses and leave a legacy to be proud of for the rest of your career.

The C1 Package includes the following elements:

  • The iconic Colne Valley Viaduct which is a “structure of international significance”; 3+ km long and spanning the lakes of the Colne Valley (architectural images can be found online).
  • Chiltern Tunnels – 2 x 16km long tunnels through the Chiltern Hills
  • Western Valley Slopes (South Portal) – 2.5km of earthworks including the TBM launching portal and main compound in Maple Cross housing the TBM plant and equipment, main offices and tunnel/viaduct pre cast yards
  • 5 x Ventilation Shafts at Chalfont St. Peter, Chalfont St. Giles, Amersham, Little Missenden and Chesham. Shaft depth between 35m-65m with diaphragm walls up to 80m deep. Headhouses at each location.

The Slurry Treatment Plant Engineer scope of works includes:

  • Monitor the slurry quality going back to the Tunnel Boring Machine.
  • Monitor the quality of the spoils to allow them a proper landscaping.
  • Monitor the water quality to allow recycling internally in the mucking system or discharge to the site internal drainage system
  • Water Treatment Plant at the pond area will be part of the scopes, controlling the water quality prior to discharge out of the site.
  • Monitor the capacity of the STP to follows the advancement of the two Tunnel Boring Machines.
  • Prepare the weekly and monthly reports on the quantities and quality of the spoils, water,etc

The role requires a level of interfacing between internal departments, multiple subcontractors and suppliers.


The ALIGN Slurry Treatment Plant Engineer will be responsible for:

  • Ensuring the STP Manager is updated on all issues as soon as possible, to mitigate the risk of production downtime.
  • Ensuring all site-based activities are communicated to the Management & Site Engineers to avoid any conflict of planned activities.
  • Coordinating extensively with the maintenance teams to make sure all daily, weekly and monthly checks are carried out adequately, to ensure the smooth operation of all plant equipment.
  • Reporting all planned preventative maintenance tasks with the maintenance teams to avoid any unnecessary downtime to the production.
  • Reviewing interfaces with adjacent activities and ensuring that they are properly coordinated and communicated.
  • Attending regular site progress meetings with all involved parties to monitor progress, quality and safety.
  • Leading the daily activity briefing to ensure that all team member understand the planned activities and are aware of any changing risks associated with the planned works.
  • Working with the procurement team to ensure the adequate supply of the required production fittings and materials in line with the production programme.
  • Monitoring the implementation of the ITPs.
  • Coordinating and assisting the Align quality teams to ensure that all the required tests are carried out by the internal laboratory as per the ITP’s.
  • Ensuring that the suppliers and Align teams maintains the on-going compliance of all products and related approvals.
  • Liaise with the logistic and procurement Align Teams to ensure delivery of the consumables are done in due time and not impacting the TBM progress.
  • Monitor the quality of the spoil (mainly the water content) is suitable with the requirements for landscaping.
  • Controlling the quality of the water treated at the WTP is within the requirement of the discharge permit.
  • Monitoring progress against the weekly programmes on a weekly basis.
  • Recording any events which affect the day’s activities in a comprehensive site diary (e.g. weather, resource availability, instructions received, interfaces with other tasks etc.…) and providing the adequate feedback to enable the updating of progress reports, daily diaries changes and issues for areas of responsibility.
  • Performance of the filter press and review of their parameters.
  • Adjustment of the slurry quality in regards of the TBM advance speed and geology,
  • Water management, i.e. consumptions, recycling, optimization of the process.
  • Quantities of spoil produced on a daily and ring basis.
  • Monitoring the implementation of the method statements.
  • Fulfilling Health & Safety responsibilities by adhering to the Algin’s Health & Safety Policy and Management Plans.
  • Complying with all Company’s Policies and Procedures.
  • Undertaking other such reasonable duties appropriate to the role.


Skills & Experience

  • Ideally, some experience within the construction industry, geological or wastewater treatment part.
  • A good practical understanding of Health & Safety requirements.
  • Ability to prioritise, plan, schedule and evaluate works.


  • Degree in Environment or Geotechnical Engineering, (This requirement can be substituted with an extensive proven track record of Construction experience).
  • Desirable - Membership of Construction or Manufacturing industry professional body.
  • Desirable - First Aider.
  • Computer skills across the whole Microsoft Office suite.
  • CSCS Card holder or happy to obtain prior to joining the business.
  • Full UK driving Licence.


We're ready to invest in you and your future, and offer wide-ranging, performance-related progression opportunities. Our competitive rewards packages feature flexible benefits to fit your lifestyle and priorities.

We'd love you to join us in proudly building Britain's future heritage.

Apply online now.

Or, know someone who would be a perfect fit? Let them know!

Maple Cross

WD3 9XN Rickmansworth Directions View page


Applicant tracking system by Teamtailor