Principal Wastewater Network Modellers

Arcadis; Plymouth; On-site; GBP 50,000 - 70,000; Full time

Job summary

A leading engineering firm in the UK seeks a Principal Wastewater Modeller to manage and deliver key wastewater projects. Ideal candidates will have advanced hydraulic modelling skills, strong report-writing abilities, and proficient knowledge in InfoWorks ICM. This full-time role offers the opportunity to lead teams and engage with clients on impactful projects in a collaborative environment.

Qualifications

• Advanced expertise in hydraulic modelling for wastewater.
• Proficient in InfoWorks ICM and GIS software.
• Strong report-writing and data analysis skills.

Responsibilities

• Deliver and manage wastewater infrastructure projects.
• Conduct technical reviews and oversee model build.
• Develop strategic solutions for flood mitigation.
• Review technical reports and presentations.

Skills

Hydraulic modelling expertise

Team management

Stakeholder coordination

InfoWorks ICM proficiency

GIS software competence

Report writing skills

Spreadsheet data analysis

Education

Chartered member of a relevant professional institution

Tools

InfoWorks ICM

GIS software

Job description

Principal Wastewater Modeller – Arcadis

We are looking for a Principal Wastewater Modeller to join our Water Management team. In this position, you will lead the development of wastewater models, manage key project aspects, and work closely with clients to expand Arcadis’s portfolio through strategic client interactions.

Role description

Our Water Management team is at the forefront of tackling some of the UK’s most technically demanding projects and AMP8 programmes. Renowned for our expertise, we work in close partnership with leading water companies and contractors to deliver innovative solutions. Projects focus on addressing flooding challenges, reducing storm overflow pollution, improving network resilience, and ensuring compliance with UK regulatory requirements such as WINEP, while adhering to industry best practices.

This role is perfect for a motivated and independent professional looking to advance their career while mentoring and nurturing the development of others. It involves taking a leadership position in client engagement and management, ensuring technical deliverables align with client expectations, and fostering opportunities for continued collaboration and growth.

Responsibilities

• Deliver and manage wastewater infrastructure and non-infrastructure modelling projects, effectively scaling tasks.
• Conduct technical reviews of wastewater models, oversee model build, verification of sewer networks and survey specifications.
• Develop strategic solutions to mitigate flooding and reduce CSO spills.
• Provide support to designers at concept outline and detailed design stages.
• Review and enhance technical reports and presentations to uphold high-quality standards.
• Resolve technical modelling challenges on projects and contribute to advancing the team's technical expertise.
• Ensure project components, including reports, drawings, specifications, and studies, comply with relevant standards and project requirements.
• Collaborate closely with clients, explaining model outputs and processes and ensuring they understand them.
• Support and guide junior team members and foster a collaborative work environment.
• Assist with preparation of bids, including narratives, cost estimates, and programmes.
• Coordinate project elements, managing resource allocation, quality assurance, subcontractor interactions, and client feedback.
• Work alongside specialists from other engineering and environmental disciplines to ensure project integrity.
• Liaise effectively with the Project Director or Manager and the client to support project progress.
• Foster a collaborative work environment by actively supporting the professional development of yourself and your team, guiding junior members to reach their full potential.

Qualifications & experience

• Advanced expertise in hydraulic modelling for wastewater infrastructure and non-infrastructure projects.
• Skilled in team and stakeholder coordination and management.
• Proficient in InfoWorks ICM; HADES knowledge is advantageous.
• Competent with relevant GIS software packages.
• Chartered member of a relevant professional institution (e.g., ICE or CIWEM).
• Proven experience in model quality assurance procedures.
• Strong report‑writing skills.
• Advanced abilities in spreadsheet‑based data analysis.
• Coding experience desirable.

Why Arcadis?

We can only achieve our goals when everyone is empowered to be their best. We believe everyone’s contribution matters, which is why we pioneer a skills‑based approach, letting you harness your experience to carve your career path and maximise our impact together.

You’ll do meaningful work, irrespective of role, and help deliver sustainable solutions for a more prosperous planet. Make your mark on your career, your colleagues, your clients, your life, and the world.

Our Commitment to Equality, Diversity, Inclusion & Belonging

We want you to bring your best self to work daily. Equality and inclusion are central to our organisation, and we hold ourselves to account for our actions. Our ambition is to be an employer of choice and provide a great workplace for all. We believe that diverse people with different experiences will develop the most innovative ideas. Equality, diversity and inclusion are at the heart of improving quality of life, and we work closely with our people across six ED&I workstreams: Age, Disability, Faith, Gender, LGBT+ and Race.

Job details

Seniority level: Mid‑Senior level

Employment type: Full‑time

Job function: Other

Industry: Professional Services