Principal Engineer - Hydraulics & Drainage

AECOM; Wrocław; On-site; PLN 180,000 - 280,000; Full time

Job summary

AECOM in Wroclaw, Poland, is recruiting a Principal Wastewater Modeller to join our water team. The role focuses on leading the development, calibration and verification of wastewater network models across multiple projects and frameworks.

You will provide technical oversight, ensure quality across teams, mentor junior staff, and contribute to bids and business development, while maintaining compliance with UK water industry norms where applicable.

Qualifications

• Fluent in English, both oral and written.
• Excellent communication and stakeholder management skills.
• Knowledge of water/wastewater engineering principles.

Responsibilities

• Lead the development, calibration and verification of wastewater network models (e.g., InfoWorks ICM or similar platforms).
• Provide technical oversight and QA across multiple projects, guiding wider project teams.
• Oversee hydrology-related tasks to inform wastewater modelling studies where required.
• Deliver assignments across hydrology and related disciplines within defined project terms.
• Analyse datasets and modelling outputs, producing clear client reports.
• Monitor data to assess impacts of upstream activities on wastewater systems and environment.
• Mentor junior team members and contribute to bids and business development.

Skills

English (fluent)

Communication

Stakeholder management

Education

Bachelor/Master in Civil/Environmental/Water Engineering

Tools

InfoWorks ICM

Job description

• Full-time
• State/Province: Lower Silesian
• Business Group: DCS
• Business Line: Water
• Work Location Model: Hybrid
• Operating Group: Group Support
• Primary Location: PL - Wroclaw

Company Description

Work with Us. Change the World.

At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world's trusted infrastructure consulting firm, partnering with clients to solve the world’s most complex challenges and build legacies for future generations.

There has never been a better time to be at AECOM. With accelerating infrastructure investment worldwide, our services are in great demand. We invite you to bring your bold ideas and big dreams and become part of a global team of over 50,000 planners, designers, engineers, scientists, digital innovators, program and construction managers and other professionals delivering projects that create a positive and tangible impact around the world.

We're one global team driven by our common purpose to deliver a better world. Join us.

Job Description

We are currently recruiting a Principal Wastewater Modeller with experiencein the water industry, to join our busy and expanding experienced team. The team provides assessment, concept, feasibility, preliminary and detailed designs on a wide range of projects. Our clients work for private and public sector and include long term Framework Agreements with numerous Local Authorities together with Design and Build commissions for many major Contractors. Our group has an established track record of successfully delivering water designs for many years throughout the UK&I, US, Canada, Australia and New Zealand among others. You may have the opportunity to work on some of the most iconic Water projects, being part of a diverse and multicultural team for the Enterprise Capabilities Europe Center (Poland/Spain).

The responsibilities of this role include:

• Lead the development, calibration and verification of wastewater network models (e.g., InfoWorks ICM or similar platforms).
• Provide technical oversight and quality assurance across multiple projects, operating under general direction while guiding wider project teams.
• Undertake and oversee technical and administrative tasks of limited to moderate complexity related to hydrology and groundwater investigations where required to inform wastewater modelling studies.
• Deliver assignments that may span the broader field of hydrology and related technical disciplines, working to defined project terms with appropriate professional review.
• Analyse complex datasets and modelling outputs, preparing clear, high-quality technical reports and client deliverables.
• Monitor and interpret data to assess the impacts of upstream activities on wastewater systems and the wider environment, ensuring compliance with relevant permits and regulatory conditions.
• Act as technical lead on major frameworks and modelling programmes, supporting strategic planning, storm overflow reduction, and network resilience initiatives.
• Mentor and develop junior team members and contribute to bids and business development activities.

Qualifications

• Extensive experience in wastewater network modelling within a consultancy or water utility environment (10+ years).
• Strong proficiency in industry-standard modelling software (e.g., InfoWorks ICM).
• Strong understanding of UK water industry regulations, AMP cycles, and wastewater planning frameworks.
• Excellent communication and stakeholder management skills.
• Fluent in English, both oral and written.

Preferred Qualifications

• Bachelor or Master's degree in Civil, Environmental or Water Engineering or related field.