**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 global 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. **Job Description** + Preparing mechanical design documentation for plumbing and HVAC systems in accordance with company and client standards. + Performing engineering calculations and developing technical solutions for new design challenges. + Creating 3D models in BIM environments and conducting interdisciplinary coordination. + Delivering drawings, diagrams, technical descriptions, and material specifications in English. + Executing assigned tasks within agreed budget and schedule with moderate supervision. + Actively collaborating with the project team and sharing knowledge with other team members. + Participating in meetings with international stakeholders. + **Preferred: experience in designing plumbing/HVAC installations for Data Center projects.** **Qualifications** + 4–5 years of experience in a similar mechanical engineering role (plumbing / HVAC). + Technical university degree in Environmental Engineering or a related field. + Proficiency in Revit and AutoCAD. + Experience using calculation software such as InstalSoft or Audytor. + Good command of English (spoken and written); German is an asset. + Knowledge of Polish and European design standards; familiarity with American standards (IPC, ASHRAE, IMC, UFC) is welcome. + Strong communication skills and ability to work effectively within an international team. **Additional Information** + Category B driving license. **ReqID:** J10146178 **Business Line:** B&P - Buildings & Places **Business Group:** DCS **Strategic Business Unit:** Europe & India **Career Area:** Engineering **Work Location Model:** Hybrid