Lead Senior Principal: Clean Water Process Engineer

Stantec; High Wycombe; Hybrid; GBP 90,000 - 120,000; Full time

Benefits offered by this job

Hybrid / Flexible working

Competitive salary

Bonus schemes

Private medical insurance

Job summary

Stantec is seeking a Senior Principal Process Engineer – Clean Water to lead strategic process design across UK water infrastructure projects from feasibility to delivery. You will set standards, mentor teams and guide asset performance for safe, resilient drinking water systems.

You will influence investment decisions, drive technical excellence and collaborate with clients across London, High Wycombe, Reading, Brighton, Southampton or Cambridge in a hybrid working environment.

Qualifications

• Degree qualified in Chemical Engineering, Process Engineering or a related discipline.
• Chartered Engineer (CEng) or equivalent registration with a relevant professional institution.
• Extensive experience delivering process engineering within the water sector, with a focus on clean water treatment and drinking water infrastructure.
• In-depth technical knowledge of water treatment processes, process design, calculations, treatment performance and engineering assurance.
• Proven experience providing technical leadership on complex, multidisciplinary water infrastructure projects.
• Experience guiding projects through feasibility, optioneering, detailed design and delivery, with an understanding of operational and regulatory requirements.
• Strong leadership and mentoring skills, with the ability to develop technical capability and influence engineering teams.
• Excellent client engagement, communication and stakeholder management skills, including the ability to provide clear technical advice at a senior level.

Responsibilities

• Lead the development and assurance of clean water treatment process designs, including treatment selection, process calculations, mass balances, hydraulic assessments and technical specifications.
• Provide technical authority on treatment processes such as clarification, filtration, disinfection and other treatment technologies appropriate to raw water quality and regulatory requirements.
• Guide the development and optimisation of water treatment works, including capacity upgrades, process improvements, asset replacement and resilience schemes.
• Oversee technical assessments relating to drinking water quality, treatment performance, process efficiency and security of supply.
• Provide senior technical oversight across multidisciplinary projects, ensuring process solutions are safe, robust, sustainable and deliverable.
• Support feasibility studies, optioneering, investment planning, design reviews, commissioning and operational performance investigations.
• Build trusted relationships with clients, providing strategic advice on treatment challenges, infrastructure investment and long‑term asset performance.
• Lead and mentor engineers, strengthen technical standards and support succession planning within the Process Engineering community.
• Contribute to business development, bids, framework delivery and the continued expansion of Stantec’s clean water portfolio.
• Champion innovation, low‑carbon solutions and continuous improvement across clean water process engineering.

Skills

Chartered engineer leadership

Water treatment knowledge

Process design leadership

Regulatory understanding

Client engagement

Education

Degree in Chemical or Process Engineering

Job description

Stantec is seeking a Senior Principal Process Engineer – Clean Water to lead strategic process design across UK water infrastructure projects from feasibility to delivery. You will set standards, mentor teams and guide asset performance for safe, resilient drinking water systems.

You will influence investment decisions, drive technical excellence and collaborate with clients across London, High Wycombe, Reading, Brighton, Southampton or Cambridge in a hybrid working environment.