Senior Wastewater Modeller & Client Solutions Lead

Arcadis; Greater London; On-site; GBP 52,000 - 76,000; Full time

Job summary

Arcadis in the United Kingdom is seeking a Senior Wastewater Modeller to lead the development and verification of wastewater models, manage project tasks and engage with water utilities to grow Arcadis’ project portfolio.

You will apply advanced hydraulic modelling skills, mentor junior staff and collaborate with interdisciplinary teams to deliver compliant, high‑quality outputs for AMP8 programmes and regulatory standards.

Qualifications

• Advanced expertise in hydraulic modelling for wastewater projects.
• Experience coordinating multi-disciplinary teams and stakeholders.
• Proficiency with InfoWorks ICM and GIS tools.
• Chartered membership desirable (ICE or CIWEM).

Responsibilities

• Deliver wastewater modelling projects and verify models.
• Coordinate surveys, prepare reports and client briefings.
• Mentor junior staff and support bid preparations.
• Collaborate with designers and other disciplines to ensure project integrity.
• Ensure compliance with UK regulatory standards (WINEP).

Skills

Hydraulic modelling

Project leadership

Client engagement

Team mentoring

Data analysis

InfoWorks ICM

GIS

Code / scripting

Education

Chartered with ICE or CIWEM

Civil/Environmental engineering degree

Tools

InfoWorks ICM

HADES knowledge

GIS software

Job description

Arcadis in the United Kingdom is seeking a Senior Wastewater Modeller to lead the development and verification of wastewater models, manage project tasks and engage with water utilities to grow Arcadis’ project portfolio.

You will apply advanced hydraulic modelling skills, mentor junior staff and collaborate with interdisciplinary teams to deliver compliant, high‑quality outputs for AMP8 programmes and regulatory standards.