Principal Process Engineer

My Client is recruiting for a Principal Process Engineer in the Water Sector
We are seeking an experienced Principal Process Engineer to take a leading role in delivering process engineering solutions across water and wastewater projects.
This is a senior position suited to a Chartered (or near Chartered) Engineer with strong expertise in treatment processes, who enjoys combining technical leadership with practical design delivery.
You will play a key role in developing and approving process designs, guiding multidisciplinary teams and ensuring solutions are robust, efficient and aligned with client and regulatory requirements.

The Role

As a Principal Process Engineer, you will provide technical leadership across projects, taking ownership of process design and supporting the delivery of high-quality engineering solutions.
Your responsibilities will include:

• Leading the development of efficient and practical process design solutions
• Reviewing and approving design deliverables, reports, specifications and design risk assessments (DRAs)
• Checking and approving mass balances, process sizing, hydraulic calculations and process flow diagrams
• Reviewing control philosophies and commissioning strategies
• Providing technical guidance and oversight across projects and supporting tender submissions
• Directing and mentoring engineers and graduates
• Ensuring designs comply with relevant technical standards, professional guidance and water company requirements
• Ensuring project design changes are properly implemented and recorded
• Working in accordance with formal design processes and procedures
• Estimating design hours and supporting project planning
• Attending and leading HAZOP, ALM, KM and other technical review meetings
• Reviewing and communicating technical standards, procedures and updates
• Supporting the continuous improvement of process engineering standards and practices

About You

We are looking for a highly capable process engineer with strong experience in the water sector and a track record of delivering effective treatment solutions.

Experience and Qualifications:

• Extensive process design experience within the regulated water industry
• Extensive knowledge of wastewater treatment processes and plant design
• Experience delivering process design for water and/or wastewater projects
• Degree, HND or significant practical experience from technician level progression
• Strong IT and digital capability
• Chartered Engineer status

• Ideally experience across both clean water and wastewater projects
• Experience participating in or leading HAZOP studies (ideally as Chair)
• Experience supporting tenders and technical proposals
• Full UK driving licence and access to a vehicle

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