Junior Hydraulics & Drainage Engineer

Job Description

We are looking to hire a Junior Hydraulics & Drainage Engineer to join our growing Madrid team delivering assessments, concepts, feasibility studies, and detailed designs across diverse water and transportation programs.
We partner with public and private clients, including long‑term frameworks with Local Authorities and Design & Build commissions with major contractors.
Our global group has delivered water designs across the US, Canada, Australia, New Zealand, and beyond, giving you the chance to contribute to iconic Transportation and Water projects alongside a diverse, multicultural Enterprise Capabilities team.

• Collaborate with experienced designers and engineers in the delivery of drainage, stormwater, sewer, and/or potable water network projects, contributing to solutions that support sustainable and resilient communities.

  • Develop network designs, technical drawings, and engineering models using Civil 3D and industry-leading design tools, gaining hands-on experience across a variety of infrastructure projects.

  • Take ownership of assigned tasks while working within a supportive team environment, following established methodologies and receiving guidance from experienced professionals to accelerate your development.

  • Ensure the quality and accuracy of your work through self-checks prior to submission, while actively participating in peer reviews and contributing to a culture of continuous improvement and technical excellence.

Why Join AECOM?

• Accelerate your career in water infrastructure. 

• Work on meaningful projects from day one. 

• Develop industry-leading technical skills. 

• Be part of a global engineering network. 

• Continuous learning and professional growth. 

• A supportive and inclusive environment. 

• Flexible working and wellbeing support. 

Whether you are a recent graduate or have a few years of experience, this is an excellent opportunity to build a long-term career in hydraulic and drainage engineering with one of the world's leading infrastructure consulting firms.

Qualifications

We are looking for someone passionate about water engineering and eager to continue developing their technical expertise in a collaborative and innovative environment.

At least, more than 2 years of experience in hydraulic and drainage design, infrastructure networks, or related engineering projects.

Strong working knowledge of Autodesk Civil 3D, including the development of pipeline alignments, profiles, cross-sections, grading, and surface modelling.

Fluent English communication skills, both written and spoken, with the confidence to collaborate within multicultural and international project teams.

Exposure to hydraulic and hydrological modelling tools such as HEC-RAS, HEC-HMS, StormCAD, InfoWorks ICM, OpenRoads Designer, or 12d. Experience with any of these platforms is an advantage, but a willingness to learn and grow with new technologies is equally important.

A mindset of continuous learning and adopting best practices is highly valued. Ideally you are proactive, and enthusiastic about tackling engineering challenges, learning from experienced professionals, and contributing to projects that make a positive impact on communities and the environment.

Additional Information

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.

About AECOM 

AECOM is proud to offer comprehensive benefits to meet the diverse needs of our employees. Depending on your employment status, AECOM benefits may include medical, dental, vision, life, AD&D, disability benefits, paid time off, leaves of absences, voluntary benefits, perks, flexible work options, well-being resources, employee assistance program, business travel insurance, service recognition awards, retirement savings plan, and employee stock purchase plan. 

AECOM is the global infrastructure leader, committed to delivering a better world. As a trusted professional services firm powered by deep technical abilities, we solve our clients’ complex challenges in water, environment, energy, transportation and buildings. Our teams partner with public- and private-sector clients to create innovative, sustainable and resilient solutions throughout the project lifecycle – from advisory, planning, design and engineering to program and construction management. AECOM is a Fortune 500 firm that had revenue of $16.1 billion in fiscal year 2025. Learn more at aecom.com. 

What makes AECOM a great place to work 

You will be part of a global team that champions your growth and career ambitions. Work on groundbreaking projects - both in your local community and on a global scale - that are transforming our industry and shaping the future. With cutting-edge technology and a network of experts, you’ll have the resources to make a real impact. Our award-winning training and development programs are designed to expand your technical expertise and leadership skills, helping you build the career you’ve always envisioned. Here, you’ll find a welcoming workplace built on respect, collaboration and community - where you have the freedom to grow in a world of opportunity. 

As an Equal Opportunity Employer, we believe in your potential and are here to help you achieve it. All your information will be kept confidential according to EEO guidelines.