Location
London

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. With over 34,000 people across more than 30 countries, we are dedicated to improving quality of life by solving complex challenges together.

Our Water Management team is seeking a Senior Wastewater Modeller to develop wastewater models, manage key project aspects, and engage closely with clients to grow Arcadis’s project portfolio. Collaboration, proactive problem-solving, and creative thinking are central to this role.

You will work on some of the UK’s most technically demanding projects and AMP8 programmes, partnering with leading water companies and contractors. Projects focus on flooding challenges, storm overflow pollution reduction, network resilience, and compliance with UK regulatory requirements such as WINEP.

This role is ideal for a motivated and independent professional seeking career progression while mentoring others. You will lead client engagement and management, ensuring technical deliverables meet expectations and fostering ongoing collaboration and growth.

Experience
- Advanced expertise in hydraulic modelling for wastewater infrastructure and non-infrastructure projects
- Proven experience in model quality assurance procedures
- Skilled in team and stakeholder coordination and management
- Strong report-writing skills
- Experience supporting concept outline and detailed design stages
- Ability to resolve technical modelling challenges and contribute to team expertise

About you
- Motivated, independent professional with leadership capabilities
- Strong communicator able to explain complex model outputs clearly to clients
- Collaborative team player who supports junior colleagues’ development
- Proactive problem solver with creative thinking skills

Qualifications
- Proficient in InfoWorks ICM; HADES knowledge advantageous
- Competent in relevant GIS software packages
- Chartered membership of a relevant professional institution desirable (e.g., ICE or CIWEM)
- Advanced spreadsheet data analysis skills
- Coding experience desirable