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AECOM is seeking to hire a highly skilled Junior Level Mechanical Engineer for the Data Center and Mission Critical team for our east region. This role will support the design, coordination, documentation, and delivery of mechanical systems for data center and other mission-critical facilities and will work under the guidance of senior engineers and helps ensure systems meet performance, reliability, energy efficiency, and operational requirements.

This position offers the flexibility of a remote work schedule and can be based from a variety of locations in the US where AECOM has an office.

Although the position is primarily remote periodic travel may be required for client meetings, key project milestones, onsite collaboration sessions, or other business‑critical activities. Travel is expected to be occasional and scheduled in advance.

Key Responsibilities:

Mechanical Systems Design

• Assist in the design and development of HVAC, cooling, ventilation, and mechanical utility systems for data centers and mission-critical facilities.
• Support the design of chilled water systems, cooling towers, pumps, piping networks, air handling units, and computer room air conditioning (CRAC) or computer room air handler (CRAH) systems.
• Assist with cooling strategies for high-density server environments, including liquid cooling and other advanced cooling technologies, as applicable.
• Perform preliminary engineering calculations, equipment sizing, and load assessments under the direction of senior engineers.

 Engineering Calculations and Analysis

• Support mechanical load calculations, heat rejection analysis, airflow calculations, and hydronic system sizing.
• Assist with evaluating system redundancy and reliability requirements, including N+1 and 2N configurations.
• Support energy efficiency assessments and mechanical system performance evaluations.
• Help review equipment selections and technical specifications for compliance with project requirements.

 Design Documentation and Deliverables

• Prepare and update mechanical drawings, schematics, equipment schedules, and design documentation.
• Assist with developing construction documents, design narratives, technical specifications, and equipment schedules.
• Use engineering software and design tools, such as AutoCAD, Revit MEP, and relevant HVAC calculation programs.
• Incorporate engineering markups and revisions into drawings and models.

Multidisciplinary Coordination

• Coordinate mechanical designs with electrical, structural, architectural, plumbing, fire protection, and controls teams.
• Assist with identifying and resolving spatial conflicts and design clashes using BIM models and coordination tools such as Navisworks.
• Participate in design coordination meetings and track outstanding technical issues.
• Support coordination of mechanical equipment layouts, piping routes, ductwork, and equipment access requirements.

Data Center and Mission-Critical Requirements

• Develop an understanding of the reliability, availability, and redundancy requirements associated with mission-critical facilities.
• Support designs that maintain appropriate temperature, humidity, and environmental conditions for IT equipment.
• Assist with mechanical system layouts and configurations that support continuous operations and maintainability.
• Understand the importance of equipment redundancy, system resilience, maintainability, and phased construction in operational data centers.

Construction and Project Support

• Assist with reviewing contractor submittals, equipment shop drawings, and requests for information (RFIs).
• Support responses to construction-related technical questions under the supervision of senior engineers.
• Participate in site visits, construction observations, equipment inspections, and commissioning activities as needed.
• Help document field observations, design discrepancies, and corrective actions.

 Codes, Standards, and Quality

• Apply applicable building codes, mechanical codes, energy codes, and project-specific design standards under senior engineering guidance.
• Assist with quality checks of calculations, drawings, and specifications.
• Maintain accurate engineering documentation and support compliance with client requirements and internal quality procedures.

Minimum Qualifications:

• Bachelor’s degree in mechanical engineering or a related engineering discipline and no experience or demonstrated equivalency of experience and/or education.
• Familiarity with HVAC principles, thermodynamics, fluid mechanics, and heat transfer.  Exposure to AutoCAD, Revit MEP, BIM coordination, or HVAC calculation tools.
• Strong analytical, problem-solving, communication, and organizational skills.
• Interest in data center infrastructure, critical cooling systems, energy efficiency, and mission-critical engineering design.

 Preferred Qualifications:

• Exposure to data center, healthcare, semiconductor, laboratory, industrial, or other mission-critical projects. Experience with chilled water systems, redundant mechanical infrastructure, or commissioning.
• Proficiency in the use of engineering design software, BIM/CAD tools and building system applications such as REVIT.
• E.I.T (Engineer in Training) professional designation.

• Relocation is not available for this role.
• Sponsorship for U.S. employment authorization is not available now or in the future for this position.
• THIS POSTING IS FOR A CURRENT VACANCY, AND AECOM INTENDS TO FILL THIS POSITION BY JANUARY 27, 2027.

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, 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 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.