Company Description
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 general 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.
About Enterprise Capabilities
Fundamental to our
Think and Act Globally
strategy and digital adoption, Enterprise Capabilities (EC) is AECOM's primary vehicle for workshare. Operating across geographic boundaries and time zones, EC partners with regional and Global Business Line project teams to provide technical expertise, accelerate delivery and keep AECOM competitive in the industry.
With a team of over ** technical professionals located across nine countries and remote technical anchors, EC teams are trusted to deliver high-quality, specialist services that help to fill capability gaps, resourcing needs and technical constraints on projects of all scopes and sizes.
Job Description
We are seeking a motivated Engineer with interest or initial experience in Tunnel Ventilation Systems (TVS)



and/or Computational Fluid Dynamics (CFD).
Key Responsibilities
Assist in the development of ventilation models and engineering assessments under the supervision of senior engineers.
Assist in preparing engineering calculations, ventilation system layouts, mechanical design drawings, equipment sizing, and technical specifications.
Support the development and review of simulation models for tunnel ventilation and fire scenarios.
Assist in developing 1D ventilation simulations (SES, IDA Tunnel) and 3D fire and smoke modelling analyses using FDS/PyroSim. Support occupant egress assessments using Pathfinder.
Coordinate with multidisciplinary teams to support integrated tunnel and station designs.
Ensure designs and calculations comply with project requirements, applicable codes, and engineering standards.
Participate in technical meetings, workshops, and internal design reviews.
Support space proofing activities and equipment access/maintenance studies for TVS components.
Contribute to technical reports, presentations, and engineering documentation.
Qualifications
Here's what we're looking for:
Bachelor's degree in mechanical engineering, Aerospace Engineering, Civil Engineering, Mining Engineering, or a related discipline.
Additional training in tunnel ventilation, fire safety engineering, or CFD simulation is desirable.




Suitable for engineers with up to 2 years of experience in a related field.
Strong interest in tunnel ventilation, fire life safety engineering, fluid dynamics, and simulation-based design.
Familiarity with SES, IDA Tunnel or equivalent tunnel ventilation simulation software would be beneficial.
Familiarity with FDS and/or PyroSim is desirable. Experience with ANSYS Fluent or equivalent CFD software would be advantageous.
Familiarity with standards such as NFPA 130, PIARC recommendations, EU Directive */EC, or other tunnel fire life safety guidelines would be beneficial.
Basic knowledge of Python, VBA, or other scripting tools would be advantageous.
Proficiency in Microsoft Office (Excel, Word) and basic experience with Revit or CAD.
Ability to carefully assess and analyse information with precision.
Confidence in presenting ideas and communicating effectively.
Ability to work effectively both independently and as part of a multidisciplinary team.
Professional proficiency in both English and Spanish.
Willingness to learn and adapt to new technologies and methodologies.
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, volunt

📌 Engineer - Tunnel Ventilation Systems And Fls (Madrid)
🏢 Aecom
📍 Madrid