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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.

We are seeking a talented and detail-oriented Mechanical Engineer to join our dynamic team in Riyadh, Saudi Arabia. In this role, you will be instrumental in designing, analyzing, and optimizing mechanical systems that drive our organization's success. You will collaborate with cross-functional teams to develop innovative solutions, ensure compliance with industry standards, and deliver high-quality engineering outcomes. This is an excellent opportunity for a professional who is passionate about mechanical engineering and committed to continuous improvement and excellence.

• Design and develop mechanical systems, including HVAC, hydronic, and air-side systems, with a focus on efficiency, reliability, and performance optimization
• Perform detailed load calculations, capacity planning, and heat load analysis to determine system requirements and ensure proper equipment sizing
• Select and specify appropriate mechanical equipment and components based on project requirements, industry standards, and cost-effectiveness
• Develop comprehensive technical drawings, specifications, and documentation using CAD software (AutoCAD, Revit) and other engineering tools
• Conduct computational fluid dynamics (CFD) analysis and simulations to optimize airflow distribution, identify potential issues, and recommend design improvements
• Create and maintain detailed P&IDs (Piping and Instrumentation Diagrams), flow diagrams, and sequences of operations for mechanical systems
• Collaborate with electrical engineers, architects, contractors, and other stakeholders to ensure seamless integration of mechanical systems with overall project infrastructure
• Review and approve contractor shop drawings, material technical submittals, and requests for information (RFIs) to ensure compliance with design specifications
• Develop and review Method of Procedures (MOP) and Commissioning (Cx) procedures and documentation
• Analyze and interpret local building codes, regulations, and industry standards to ensure all designs meet compliance requirements
• Implement energy-efficient design strategies and sustainability initiatives to minimize operational costs and environmental impact
• Troubleshoot mechanical system issues and provide innovative solutions to complex engineering challenges
• Participate in project meetings and effectively communicate design plans, progress updates, and technical recommendations to all stakeholders
• Mentor and support junior engineers, fostering a collaborative and learning-oriented team environment
• Stay current with industry advancements, emerging technologies, and best practices in mechanical engineering

**Required Skills and Experience:**

• 3-5+ years of professional experience in mechanical engineering, systems design, or a related field
• Proficiency in HVAC, hydronic, and air-side system design, including load calculations, equipment selection, ductwork and piping design, and control systems
• Strong proficiency with engineering software and tools, including AutoCAD, Revit, and computational fluid dynamics (CFD) analysis software (Ansys, IES, Cradle, or similar)
• Demonstrated experience in developing technical drawings, specifications, and comprehensive engineering documentation
• Solid understanding of mechanical systems design principles, energy efficiency optimization, and system redundancy
• Experience in equipment selection, specification, and coordination with manufacturers
• Proficiency in creating P&IDs, flow diagrams, and sequences of operations
• Strong analytical and problem-solving skills with the ability to troubleshoot complex mechanical systems
• Excellent project management and organizational skills with the ability to manage multiple tasks simultaneously
• Proven ability to work collaboratively with cross-functional teams and communicate effectively with stakeholders
• Experience in reviewing contractor submittals, shop drawings, and RFIs
• Knowledge of local building codes, regulations, and industry standards applicable to mechanical systems
• Strong attention to detail and commitment to quality assurance and continuous improvement

**Preferred Skills and Experience:**

• Experience with additional engineering software such as Carrier HAP, Trane TRACE, Pipe-Flo, or NavisWorks
• Experience in BIM (Building Information Modeling) and 3D modeling
• Background in energy management, sustainability, or green building practices
• Experience mentoring or supervising junior engineers
• Familiarity with industry standards and best practices in mechanical systems design
• Experience in commissioning and startup of mechanical systems

**Education and Certifications:**

• Bachelor's degree in Mechanical Engineering, HVAC Engineering, or a related field from an accredited university
• Professional Engineer (PE) License or eligibility to obtain licensure (preferred)
• Professional certifications related to mechanical engineering or HVAC systems (preferred)
• Master's degree or advanced coursework in mechanical engineering, HVAC systems, or energy management (preferred)

**Domain Expertise:**

• Mechanical systems design and optimization
• HVAC fundamentals and advanced concepts
• Energy efficiency principles and sustainable design practices
• Industry standards, codes, and regulations
• Project coordination and stakeholder management

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 2024. 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.