Technical Lead / Water-Wastewater Subject Matter Expert (SME)

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.

Acciona offers a competitive salary, relocation assistance where relocation is required and approved, 401(k) retirement plan, medical, dental, vision, life, short and long-term disability benefits, tuition reimbursement, paid time off, and more.

The Technical Lead/Subject Matter Expert will be responsible for providing high-level technical guidance, project leadership, and quality assurance across major water and wastewater infrastructure projects with a focus in CA, AZ, TX, and FL.

The ideal candidate will bring a strong process/mechanical or civil background, serving as a go-to expert for project teams and clients during opportunity development, design, construction, commissioning, and O&M phases. The role will work in direct coordination with the Business Development team to support strategic market growth initiatives in the U.S. W&WW O&M sector, helping drive new opportunities through a deep understanding of municipal and industrial markets. The role involves cultivating relationships with key stakeholders, supporting RFP development, and working closely with technical and operations teams. The role will be qualified to serve as Key Personnel for strategic projects and retain primary ownership of the initial implementation phase of new projects.

Ideal candidate must be able to travel according to business needs. The ideal candidate should be open to work in any of these locations: Phoenix AZ, San Diego CA, or San Antonio TX.

Key Responsibilities:

• Serve as the technical authority on W/WW treatment, conveyance, and infrastructure concept development, design review support and project implementation through long-term O&M.

• Lead multi-disciplinary technical teams and coordinate across design, construction, and operations.

• Provide QA/QC oversight and ensure technical excellence on project deliverables.

• Support the development, review and submittal of proposal-type deliverables

• Collaborate with business development teams to shape technical approaches for proposals.

• Mentor junior engineers and support internal knowledge development.

• Engage with clients and serve as the technical point of contact throughout project lifecycles.

• Stay abreast of emerging technologies and industry standards.

Key Stakeholders:

• Clients: Public utilities, municipalities, private water companies.

• Internal: BD resources, Project Managers, Engineers, Construction Managers, etc.

• External: Equipment Vendors, Regulatory Agencies, Peer Reviewers.

• Preferred Education: Bachelor’s or Master’s degree in Civil, Environmental, or Chemical Engineering or a related field.

• Certifications: Professional Engineer (P.E.) license preferred (CA, TX, AZ, or FL preferred). Operator License (W and /or WW) in CA, TX, AZ or FL preferred.

• Relevant process/mechanical certifications (e.g., WEF, AWWA technical committees) a plus.

• Experience: Minimum 10–15 years of technical experience in large/complex water and wastewater projects.

• In-depth experience with treatment process design, hydraulics, pumping systems, or plant upgrades.

• Working knowledge of key codes and standards (e.g., AWWA, ASTM, OSHA, NFPA).

• Familiarity with permitting requirements and regulatory frameworks in CA, AZ, TX, and FL.

• Experience delivering projects for clients such as the City of Los Angeles, City of Houston, City of Phoenix, or South Florida Water Management District, or similar.

ACCIONA has been given the Top Employer 2022, 2023, 2024 & 2025 certification in US, as well as the Top Employers North America 2022, 2023, 2024 & 2025 seal, 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. As a company that values diversity as a source of talent, we work to foster an inclusive environment that promotes respect, belonging and engagement so that all people can participate on an equal opportunity basis. We invite everyone to apply regardless of origin, circumstances, background or condition.