Design Engineer – Wastewater (S104 / NAV / New Developments) Title: Design Engineer – Wastewater Location: Hybrid (3 days Surrey) Salary: Up to £65,000 Benefits About the Role We’re hiring a Wastewater Design Engineer to lead S104 design approvals, ensuring networks are compliant, adoptable, and aligned with Sewer Sector Guidance. Work across the full lifecycle (design, construction, adoption) within a growing multi-utility NAV business. Key Responsibilities Lead S104 assessments & sewer design approvals Ensure compliance with industry standards, legislation & ESPUG policies Liaise with developers, consultants & construction partners Provide technical support across design & construction phases Support commissioning, KPIs & operational readiness Contribute to SOPs, standards & continuous improvement Requirements Experience in wastewater design / sewerage / new developments Strong knowledge of S104, Sewer Sector Guidance & NAV processes Background in consultancy, developer services, or utilities Understanding of design, construction & adoption lifecycle Strong communication, stakeholder engagement & problem solving Wastewater DesignEngineer S104 Utilities CivilEngineering Infrastructure DrainageDesign WaterIndustry NAV DeveloperServices EngineeringJobs UKJobs Hiring