As a Principal Process Engineer, you will provide expert technical leadership across a broad portfolio of wastewater projects. You'll guide multidisciplinary design teams, influence strategy, and ensure the delivery of robust, efficient and sustainable engineering solutions.Working closely with Project Design Leads, delivery partners and stakeholders, you will challenge traditional approaches, promote digital design, and drive whole-life value into every project.This is a senior, influential role where your technical decisions will shape how Southern Water delivers water treatment solutions now and, in the future.

What you will be responsible for:Technical Leadership Lead process design across multiple wastewater schemes, providing expert guidance and approvals. Oversee key technical deliverables, resolve complex issues, and ensure quality, compliance, and value for money.Safety & Sustainability Promote a strong safety culture, develop risk assessments, and ensure designs meet CDM, environmental, and sustainability standards.Innovation & Improvement Drive continuous improvement by challenging existing practices, adopting industry best practice, and championing digital design and standardisation.People Leadership Support, mentor, and develop junior engineers, contribute to recruitment, and foster a culture that encourages innovation and collaboration.Financial & Commercial Assist with business case development, manage design budgets, and influence stakeholders to secure best value.Programme & Customer Focus Ensure design deliverables meet programme, customer, and regulatory expectations, and represent Southern Water at technical events.What you'll bring to the role:Qualifications: MEng/BEng/BSc or HNC in Chemical Engineering, Environmental, or a related discipline. Chartered Engineer status with a relevant institution is essential.Experience: A solid background in delivering water projects in the UK Water Industry, with a deep understanding of engineering principles, commercial operations, and risk management.Skills: Excellent communication, leadership, and problem-solving skills, with the ability to drive innovation and manage complex engineering challenges.