Location
London, with flexibility to work from any Arcadis office in England & Wales.

Hours
Full Time

Salary
Negotiable

About the Role
Arcadis is the world's leading company delivering sustainable design, engineering, and consultancy solutions for natural and built assets. Our Water Management team is seeking a Senior Wastewater Modeller to join a collaborative and innovative environment. This role involves delivering a range of wastewater infrastructure and non-infrastructure modelling projects, managing tasks of various scales, and supporting designers through concept and detailed design stages. You will conduct technical reviews, oversee model build and verification of sewer networks, manage survey specifications, and develop strategic solutions to mitigate flooding and reduce Combined Sewer Overflow (CSO) spills. Working closely with specialists from other engineering and environmental disciplines, you will ensure project integrity and compliance with UK regulatory requirements such as WINEP. This position offers the opportunity to work on some of the UK’s most technically demanding projects and AMP8 programmes, contributing to reducing storm overflow pollution and improving network resilience. You will liaise effectively with Project Directors, Managers, and clients, fostering a collaborative work environment and supporting your professional development. Join Arcadis to make a meaningful impact through sustainable solutions and create a lasting legacy.

Experience
- Expertise in hydraulic modelling for wastewater infrastructure and non-infrastructure projects
- Proficient in InfoWorks ICM; knowledge of HADES is advantageous
- Competent in using relevant GIS software packages
- Experience in model quality assurance procedures
- Advanced abilities in spreadsheet-based data analysis

About you
A motivated professional with strong problem-solving skills, proactive and creative thinking, and the ability to collaborate effectively across multidisciplinary teams. You are committed to delivering high-quality work and advancing technical expertise within the team.

Qualifications
- Working towards membership of a relevant professional institution (e.g., ICE or CIWEM)
- Relevant academic or professional qualifications in engineering, environmental science, or related disciplines are desirable