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Salary
≈ $57k – $91k per year (Estimated)
Location
In office (Alfreton)
Seniority
Senior
Employment
Contractor

Confirmed on the employer's own hiring board on Oct 20, 2026. First seen by Alion on May 11, 2026. Envirogen Group scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Envirogen Group is an international water treatment and process filtration company providing systems for water, wastewater, vapor emissions and material recovery, including reverse osmosis, ion exchange, membrane filtration, biofilters, fluidized bed reactors and filter cartridges. The group draws on more than 50 years of history in Europe and 30 years in North America, operates in the UK, the Netherlands and the United States, and also offers mobile water services, equipment rental and lifecycle service contracts. It recruits plant operators, field service and commissioning engineers, process, mechanical and electrical engineers, project managers, drafters and sales staff.

Envirogen Group UK Limited is seeking a talented Senior Mechanical Engineer on a contract basis to join our innovative engineering team. In this role, you will be responsible for designing and developing mechanical components and systems, for cutting-edge water and wastewater treatment solutions that contribute to environmental sustainability.

As Senior Mechanical Engineer your primary purpose is to be responsible for:

  • All technical aspects on projects in the execution phase
  • Ensuring all projects fulfil the technical, time and budget deliverables whilst ensuring they are suitable for the process requirements
  • Technical proposal writing to support the sales team; analysing drawings, specifications and other documentation, liaising with stakeholders to construct and formulate estimates and resolve issues

As a Senior Mechanical Engineer, you will manage external partners to ensure accuracy of execution costings as well as being responsible for producing technical documentation, conducting feasibility studies, and attending project meetings to discuss progress and provide technical insights.

Your work will directly impact the efficiency and performance of our water treatment systems, making a difference in communities and ecosystems.

Requirements

Qualifications:

  • Technical qualification in mechanical or chemical engineering

Experience and knowledge:

  • Experience in industrial water treatment industry
  • Significant experience of developing costed technical engineering proposals to clients within a water industry environment (regulated or industrial)
  • Ion exchange and reverse osmosis
  • Experience with key process equipment, pumps, vessels, tanks etc
  • Experience with MS office applications
  • Excellent communication skills
  • Industrial project experience within a team
  • Experience with Autocad/ Plant 3D
  • Experience with specification and technical alignment of process equipment
  • Experience of delivering design risk assessments
  • Water treatment technology and process knowledge
  • Proven ability of plant take-offs, preparing procurement schedules and expediting
  • Technical knowledge, including but not limited to: hydraulic design, process calculations, PFD, P&ID and mass balance

Skills and attributes:

  • Excellent and proactive communication skills.
  • Dependable and accountable-commits to doing the best job.
  • Strong analytical and problem solving skills. A 'self starter' who will actively seek information and work effectively with all stakeholders.
  • Innovative and meets challenges with resourcefulness.

Benefits

  • Supportive and collaborative culture
  • Opportunity for development and career progression
  • Private healthcare
  • Purchase extra annual leave
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