About Enterprise CapabilitiesFundamental 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 3500 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 DescriptionWe are seeking a motivated Engineer with interest or initial experience in Tunnel Ventilation Systems (TVS) and/or Computational Fluid Dynamics (CFD).Key ResponsibilitiesAssist 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.QualificationsHere’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 2004/54/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 InformationAt 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 AECOMAECOM 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 workYou will be part of a general 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.ReqID: J10154638Business Line: TransportationBusiness Group: DCSStrategic Business Unit: Enterprise CapabilitiesCareer Area: EngineeringWork Location Model: Hybrid

📌 Associate Manufacturing & Process Engineer (Madrid)
🏢 Aecom
📍 Madrid