Associate Director - Drainage

About the role In this role, you will lead the hydraulic design and technical review of stormwater and drainage infrastructure across major projects, with a strong focus on practical, buildable and technically robust outcomes. Your responsibilities are likely to include: Leading the hydraulic assessment and design of stormwater and drainage infrastructure for major transport, defence and energy projects Providing technical leadership in the design of pit and pipe drainage networks, open channel systems, culverts, detention and treatment infrastructure, major/minor drainage systems and flood conveyance infrastructure Overseeing hydrologic and hydraulic modelling, including interpretation of results and integration into design outcomes Reviewing and approving technical calculations, design models, drawings, reports and specifications Advising project teams and clients on flood risk, drainage strategy, network performance, design criteria and infrastructure resilience Supporting delivery from planning and concept design through to detailed design and construction support Acting as a senior technical reviewer and mentor to developing engineers across the team Supporting client engagement, work winning and proposal development in the Perth market Contributing to the growth and maturity of the local drainage and water resources capability We are looking for a highly experienced and credible engineering professional with strong technical depth in stormwater and drainage hydraulics, together with the leadership capability to guide teams and support project delivery. What you'll bring We are looking for the following broad experience: 15+ years of relevant post-graduate experience Demonstrated experience in the planning, hydraulic assessment and design of stormwater and drainage networks Strong capability in stormwater network hydraulics, including the performance of both underground and surface drainage systems Experience delivering major infrastructure projects within a consulting or multidisciplinary engineering environment The ability to provide technical leadership, design review and mentoring across a team Strong written and verbal communication skills, including confidence in engaging with clients and key stakeholders Sound commercial awareness and the ability to contribute to successful project delivery outcomes The following key skills would be highly advantageous: Experience across major road corridors, rail, Defence, aviation, renewables or other major infrastructure sectors Familiarity with relevant design standards, policies and guidance, including ARR 2019 and relevant state or authority drainage criteria Proficiency with relevant software used in drainage and hydraulic design, such as 12d, Drains, TUFLOW, HEC-RAS, MUSIC, RORB or similar tools Experience in technical governance, independent design review and project assurance Existing client relationships and market presence within Western Australia Experience supporting the growth of a technical team or discipline capability Qualifications Tertiary qualifications in Civil Engineering or a related discipline CPEng or equivalent professional registration highly regarded Why you'll love working with us Flexible work arrangements including alternative start/finish times, job-sharing and hybrid work options. Purchase up to 6 weeks additional annual leave per year. Volunteer and representation leave to support causes important to you. Flex public holidays, giving you greater choice over how and when you take leave. You'll also benefit from access to industry-leading projects, technical experts across our global network, structured career development pathways and the opportunity to help shape some of Western Australia's most significant infrastructure investments. Come grow with us and help deliver a better world. At AECOM, we are committed to maintaining a secure and trustworthy recruitment process and take any fraudulent hiring activity seriously. To support this commitment, all newly hired employees are required to attend an in-person Day 1 onboarding at an AECOM office location as a condition of employment. At AECOM, we are committed to maintaining a secure and trustworthy recruitment process and take any fraudulent hiring activity seriously. To support this commitment, all newly hired employees are required to attend an in-person Day 1 onboarding at an AECOM office location as a condition of employment. AECOM acknowledges the Traditional Owners and Custodians of the lands on which we, our clients and our communities live and work around Australia. We pay our respects to their cultures and to their Elders — past, present, and emerging. We are committed to connecting to Country in our work through meaningful engagement with First Nations peoples and businesses. Find out more about our Australian Reconciliation Action Plan here: . About AECOM AECOM is the world’s trusted infrastructure consulting firm, delivering professional services throughout the project lifecycle – from advisory, planning, design and engineering to program and construction management. On projects spanning transportation, buildings, water, new energy and the environment, our public- and private-sector clients trust us to solve their most complex challenges. Our teams are driven by a common purpose to deliver a better world through our unrivaled technical and digital expertise, a culture of equity, diversity and inclusion, and a commitment to environmental, social and governance priorities. AECOM is a Fortune 500 firm and its Professional Services business had revenue of $16.1 billion in fiscal year 2025. See how we are delivering sustainable legacies for generations to come at and @AECOM. Freedom to Grow in a World of Opportunity You will have the flexibility you need to do your best work with hybrid work options. Whether you’re working from an AECOM office, remote location or at a client site, you will be working in a dynamic environment where your integrity, entrepreneurial spirit and pioneering mindset are championed. You will help us foster a culture of equity, diversity and inclusion – a safe and respectful workplace, where we invite everyone to bring their whole selves to work using their unique talents, backgrounds and expertise to create transformational outcomes for our clients. AECOM provides a wide array of compensation and benefits programs to meet the diverse needs of our employees and their families. We also provide a robust global well-being program. We’re the world’s trusted global infrastructure firm, and we’re in this together – your growth and success are ours too. Join us, and you’ll get all the benefits of being a part of a global, publicly traded firm – access to industry-leading technology and thinking and transformational work with big impact and work flexibility. As an Equal Opportunity Employer, we believe in each person’s potential, and we’ll help you reach yours. 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.