ACCIONA is a global company, leading in the development of regenerative infrastructure that creates a positive impact on society. Our workforce consists of more than 65,000 professionals, present in more than 40 countries across the five continents, all contributing in our mission to design a better planet. Are you a passionate individual who wants to make a difference, promote sustainable development, and find solutions to the biggest global challenges including climate change, overpopulation, and water scarcity? Come and join us in building the infrastructure our planet needs to achieve a sustainable future. Job Description Acciona Agua is seeking expressions of interest from accomplished Process Engineer Leads with a proven track record in delivering complex water infrastructure projects, including large-scale desalination and advanced water treatment facilities. This leadership role is central to the strategic design, execution, and stakeholder engagement required to drive high-impact projects across South Australia. This role is critical in supporting key tenders and future project delivery across the South Australia region. Strategic Design Leadership Lead the conceptual and detailed process design of major desalination and water treatment projects, ensuring alignment with sustainability, regulatory, and performance objectives. Oversee advanced process modelling and simulation activities, including membrane system optimisation and integration of emerging technologies. Provide high-level technical direction and review of engineering deliverables, procurement specifications, and design documentation. Champion value engineering initiatives to enhance project efficiency, cost-effectiveness, and long-term operability. Present complex design concepts and strategic recommendations to executive stakeholders and clients. Project Execution & Governance Direct the development and implementation of project documentation, including management plans, commissioning strategies, performance testing protocols, and O&M manuals. Ensure seamless coordination between engineering, procurement, and construction teams to maintain design integrity and compliance throughout the project lifecycle. Lead technical negotiations and clarifications with clients, partners, and regulatory bodies. Manage resolution of critical project issues through strategic analysis and cross-disciplinary collaboration. Oversee vendor engagement, equipment selection, and procurement processes to ensure alignment with project specifications and operational goals. Stakeholder Engagement & Team Development Act as a key interface between Acciona Agua and external stakeholders, fostering strong relationships and ensuring transparent communication. Lead multidisciplinary teams, mentoring junior engineers and promoting a culture of technical excellence and continuous improvement. Drive innovation through technical enhancements and process improvements that elevate project competitiveness and sustainability. Contribute to high-level client proposals, presentations, and strategic defences. Required Skills and Competencies Degree in Chemical, Civil, Mechanical, Electrical, or related engineering discipline. Extensive experience (5 years) in senior technical roles within water infrastructure, with a focus on process engineering and project leadership. If you are a visionary process engineering leader with a passion for sustainable water solutions and a commitment to technical excellence, we invite you to express your interest in joining Acciona Agua’s high-performing team. Demonstrated success in leading large-scale desalination or water treatment projects from design through commissioning. Exceptional communication and stakeholder management skills, with the ability to influence at all levels. Strong analytical and strategic thinking capabilities. Valid Australian driver’s license; willingness to travel interstate and internationally. Spanish language proficiency is advantageous. ACCIONA has been given the Top Employer 2022, 2023, 2024 & 2025 certification in Australia, which certifies the company's commitment to excellence in human resources management and those who focus on putting their people first through their exceptional HR policies. Since establishing a presence in Australia in 2002, ACCIONA has made significant investments in local opportunities and project development. ACCIONA employs more than 3,000 people in its renewable energy, infrastructure and water projects across Australia & New Zealand. We are an Equal Opportunity Employer and promote equality and diversity. Indigenous Australians and candidates from minority groups are encouraged to apply.