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Senior Process Design Engineer

Job in Southampton, Hampshire County, SO15, England, UK
Listing for: Trant
Full Time position
Listed on 2026-01-15
Job specializations:
  • Engineering
    Environmental Engineer, Water Engineer, Process Engineer
Job Description & How to Apply Below

Due to continued success and new framework awards, we are looking to strengthen our internal design team by recruiting a Senior Process Design Engineer. Our internal design team are involved in all phases of the project lifecycle from feasibility studies through to detailed design and construction support. The ideal candidate will have a background in Process Engineering within water/wastewater as they will be covering water treatment, water distribution and storage and wastewater recycling whilst also being instrumental in providing technical support across the business.

Reporting

to the Process Design Manager, duties include but are not limited to
  • Working as part of a multi-disciplined team of Engineers, primarily on UK Water Industry Frameworks
  • Manage multi-discipline design interfaces and integration of the Process design elements to deliver fit-for-purpose engineering solutions
  • Lead tasks on a major project or lead several projects of moderate scope with complex features
  • Interpret, understand & challenge project requirements from client documents (project scope of work, drawings, specifications, correspondence, etc.)
  • Coordinate with colleagues to request condition surveys of existing processes and assets
  • Be responsible for development and checking of the following Process drawings, documentation and detail design deliverables to facilitate the design, installation and commissioning of Water & Wastewater Treatment Plants:
  • Design calculations (E.g. mass balance calculations)
  • Design sketches/drawings using CAD software (E.g. process flow diagrams, P&, etc.)
  • Technical reports
  • Process control philosophies
  • Take a role in HAZOP meetings, whether that be through the roles of Lead Process Engineer or Facilitator
  • Apply a fundamental understanding of hydraulics, surge analysis and mitigation, rheology of wastewater sludge, Newtonian and non-Newtonian system dynamics
  • Apply a comprehensive understanding of other discipline requirements and interactions required to deliver a unified and complete design solution
  • Maintain a technical knowledge base and keep up to date with new methods, products and developments affecting the Process engineering discipline and recommend new practices or changes in application
  • Collaborate closely with internal teams, clients, external design partners and subcontractors to develop and deliver innovative, compliant solutions
  • Proactively drive a H&S focus throughout the design process and subsequent delivery phase, instigating development of design risk assessments to address risks identified during review activities
  • Identify and elevate all instances of design change throughout the project lifecycle
  • Undertake technical bid evaluations, subcontractor/supplier design reviews and integrate compliant outputs into the design development process
  • Work with the Engineering Manager / Process Design Manager to monitor design effort against budget, schedule and quality requirements
  • Provide technical support and guidance to site teams during installation/commissioning
  • Develop & review project documentation for compliance with relevant Client & UK water industry standards, regulations and Company QA processes
  • Manage the project specific design interfaces with Clients, external consultants, subcontractors and suppliers
  • Promote technical excellence and innovation within the team, contributing to the development of new design methodologies and tools. Present and justify engineering solutions to complex problems in a client/stakeholder facing environment
  • Apply excellent written and verbal communications skills along with a high level of computer literacy
  • Lead, mentor, and develop junior team members, fostering a culture of continuous improvement and knowledge sharing
  • Attending industry conferences
Qualifications / Background / Skills

This role is suited to technically strong, commercially aware candidates with a background in Process engineering in the water & waste water industries. You must be able to demonstrate the following qualifications, skills/knowledge and behaviours:

  • IChemE accredited MEng degree or IChemE accredited BEng/BSc
  • Chartered membership of relevant professional institution an advantage but not…
Position Requirements
10+ Years work experience
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