Principal Drainage Engineer

Overview

As Principal Drainage Engineer at AECOM, you will lead technical delivery on complex drainage and stormwater projects, shaping design approaches and ensuring compliant outcomes. You’ll work within a multidisciplinary Perth team to implement robust hydraulic solutions and mentoring. You’ll engage with clients and regulators to win work and drive technical excellence, using advanced modelling tools. This role offers impact at scale in major infrastructure and development projects, within a flexible, growth-oriented environment.

Pay / Benefits

• Flexible work arrangements
• Additional up to 6 weeks annual leave
• Volunteer and representation leave
• Flex public holidays
• Career development pathways
• Hybrid work options

Responsibilities

• Technical delivery of drainage designs, stormwater management plans, and hydraulic assessments for major infrastructure projects
• Provide expert input into hydrologic and hydraulic analysis using 12D and DRAINS
• Develop practical and innovative solutions to drainage, flooding, and water quality challenges
• Review and approve engineering designs, models, and technical documentation for accuracy and compliance
• Support project teams through technical guidance, mentoring, and quality assurance
• Engage with clients, regulators, and stakeholders to provide trusted technical advice and contribute to winning work
• Ensure alignment with Australian standards and guidelines
• Contribute to technical excellence initiatives and stay current with tools, methodologies, and regulatory changes

Key requirements

• Around 10+ years of relevant industry experience
• Experience in planning, hydraulic assessment and design of stormwater and drainage networks
• Strong capability across underground and surface water drainage systems
• Experience delivering major infrastructure projects in a consulting or multidisciplinary environment
• Proven ability to provide technical leadership, design review and mentoring
• Strong communication and stakeholder engagement skills
• Commercial awareness and understanding of project delivery principles
• Experience with major infrastructure projects (road, rail, Defence, aviation, renewable energy)
• Knowledge of ARR 2019 and relevant drainage standards and guidelines
• Experience with 12D, Drains, TUFLOW, HEC-RAS, MUSIC, RORB or similar tools
• Technical governance, independent design review and project assurance
• Established client relationships in Western Australia
• Experience supporting growth of a technical discipline or team

• strong communication
• stakeholder engagement
• mentoring
• 12D
• Drains
• TUFLOW

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