Principal Process Engineer – Water Sector

Company: Stantec
Apply for the Principal Process Engineer – Water Sector
Location: London
Job Description:

Overview

In this role you will provide technical leadership across water and wastewater projects, guiding robust process solutions from concepts through construction support. You’ll work with cross-functional teams to deliver sustainable, client-aligned designs and mentor engineers to strengthen the Process Engineering capability. The position offers impact across UK water infrastructure, driving resilience, performance, and environmental standards. A strong emphasis is on shaping technical approaches and leading complex multidisciplinary projects within a supportive, growth-oriented culture.

Pay / Benefits

  • competitive salary
  • bonus schemes
  • enhanced pension plan
  • annual leave with buy/sell option
  • private medical insurance
  • life assurance

Responsibilities

  • Lead the technical delivery of process engineering solutions for water and wastewater projects
  • Develop, review and assure process designs, mass balances, hydraulic assessments and technical specifications
  • Provide technical direction to project teams ensuring practical and sustainable outcomes
  • Take a leading role from concept through detailed design and construction support
  • Support asset optimisation, site investigations and technical testing as required
  • Collaborate with civil, mechanical, electrical, hydraulic and environmental specialists to deliver integrated solutions
  • Build and maintain relationships with clients providing technical guidance and translating challenges into outcomes
  • Contribute to investment programmes, bids and framework opportunities across the UK water sector
  • Mentor and develop engineers to strengthen the wider Process Engineering team
  • Champion innovation, best practice and continuous improvement in delivery

Key requirements

  • Degree in Chemical or Process Engineering or related discipline with significant experience in the water/wastewater/utilities sectors
  • Strong technical experience across process design, calculations, mass balances, hydraulic assessments and treatment evaluations
  • Proven leadership across complex multidisciplinary projects
  • Good understanding of water and wastewater treatment processes and UK industry requirements
  • Excellent communication and stakeholder management skills
  • Experience mentoring engineers and providing technical guidance
  • Ability to manage competing priorities for complex projects
  • communication
  • stakeholder management
  • mentoring
  • process design
  • calculations
  • mass balances

…

Posted: September 30th, 2026