full-time

Mechanical Engineer – Data Centers & Critical Facilities

Posted by AECOM • Milan, Lombardy, Italy

📍 Milan, Lombardy 🕒 February 18, 2026

About the Role

Job Description

AECOM’s Enterprise Capabilities is seeking a Mechanical Engineer to join the Mechanical Engineering team in Milan, Italy.

The position is suited for engineers with around 5 years of experience in HVAC and mechanical building services, with exposure to data centers or mission-critical facilities.

The role focuses on the design and coordination of HVAC and cooling systems, supporting data center and critical infrastructure projects within multidisciplinary teams.

Key Responsibilities

  • Support the design of HVAC and heat rejection systems for data centers and mission-critical environments, considering cooling loads, redundancy concepts, flexibility for phased expansion, airflow management, humidity control, and energy efficiency.
  • Contribute to the selection and layout of cooling solutions such as CRAH/CRAC units, chilled water systems, DX systems, in-row cooling, fan wall units, and basic containment strateg...

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