Sr. Mechanical Engineer (CFD), Global Engineering Strategy

Amazon Web Services (AWS); Dublin; On-site; EUR 110,000 - 150,000; Full time

Job summary

Amazon Data Services Ireland Limited is seeking a Senior Mechanical CFD Engineer to lead CFD modelling and analysis for data centre cooling systems across EMEA. You will collaborate with global engineering teams to optimise airflow and thermal performance, influencing mechanical design decisions and energy efficiency.

The role requires strong leadership, experience with CFD software, and a track record delivering CFD-driven design outcomes in mission-critical facilities.

Qualifications

• Experience in industrial or commercial engineering in mission critical facilities including data centers, power generation or oil and gas facilities.
• Bachelor's degree in Engineering or a related field.
• Experience with CAD software (AutoCAD, REVIT, BIM 360, etc.).
• Experience in data center design, HVAC design and related product development.
• Knowledge of mechanical systems in critical Data Center operations including CRAC/CRAHs/AHUs, chillers, cooling towers, etc.
• Demonstrated experience with industry CFD software (e.g. ANSYS Fluent, CFX, OpenFOAM, 6SigmaDCX).

Responsibilities

• Perform CFD modelling and analysis for data centre cooling systems to inform mechanical design.
• Lead CFD simulations and provide detailed reports and specifications.
• Mentor junior engineers in CFD workflows and best practices.
• Collaborate with Mechanical, Construction, Operations, and Environmental teams across EMEA.
• Drive design strategy and standardisation for data centre cooling solutions.
• Support rollout of new cooling strategies and automation to improve throughput.

Skills

CFD modelling

Data center design

Mechanical engineering

Leadership

Education

Bachelor's degree in Engineering

Tools

AutoCAD

REVIT

BIM 360

ANSYS Fluent

CFX

OpenFOAM

Job description

Description

About AIS

AWS Infrastructure Services (AIS) owns the design, planning, delivery, and operation of all AWS global infrastructure. In other words, we’re the people who keep the cloud running. We support all AWS data centers and all of the servers, storage, networking, power, and cooling equipment that ensure our customers have continual access to the innovation they rely on. We work on the most challenging problems, with thousands of variables impacting the supply chain — and we’re looking for talented people who want to help.

You’ll join a diverse team of software, hardware, and network engineers, supply chain specialists, security experts, operations managers, and other vital roles. You’ll collaborate with people across AWS to help us deliver the highest standards for safety and security while providing seemingly infinite capacity at the lowest possible cost for our customers. And you’ll experience an inclusive culture that welcomes bold ideas and empowers you to own them to completion.

The Role

The Global Engineering Strategy team (GES) is looking for a results-oriented, inventive Senior Mechanical Engineer with computational fluid dynamics (CFD) expertise to drive thermal modelling and cooling system design for new and expanding data centre developments across EMEA.

You will lead CFD modelling and analysis for data centre cooling systems, providing simulation-driven insights that inform mechanical design decisions, optimise airflow and thermal performance, and support the delivery of energy-efficient facilities. You will sit within the Design Engineering team of the broader Data Center Engineering (DCE) organisation. You will work with our Mechanical Engineering, Construction, Operations, Commissioning, Pre-Construction, and Environmental/Sustainability teams on design strategy and implementation across the EMEA region, serving as the CFD subject matter expert - providing detailed simulation reports and specifications that shape our engineering strategy for next-generation data centre designs.

As well as providing support and mentorship within the wider DCE engineering community, while offering creative, out-of-the-box solutions and having fun doing it.

Key job responsibilities

Our Senior Mechanical CFD Engineers;

• Are strong technical leaders who can prioritise well, communicate clearly, and have a consistent track record of delivery.
• Provide creative engineering solutions balanced with high quality and customer focus.
• Work as part of a global team to accomplish our goals.
• Perform technical design and simulation work across multiple EMEA regions.
• Thrive in a fast-paced environment with evolving design requirements.
• Lead through ambiguity, proposing and validating multiple design approaches.
• Understand the best practices for data centre mechanical system designs.
• Mentor junior engineers in CFD workflows and simulation best practices.
• Have demonstrated experience delivering CFD-driven design outcomes in mission-critical or large-scale facilities.

Their Responsibilities Include

• Performing CFD models on innovative cooling designs, including airflow distribution, thermal performance, and cooling efficiency studies.
• Selecting and validating appropriate simulation methodologies for data centre thermal environments.
• Performing building energy use calculations for determining capacity and type of cooling system required
• Performing water efficiency use calculations to determine quantity of water needed on site
• Providing reports to senior leadership on simulation results, including clear visualisation and interpretation of data.
• Working with global ME teams to achieve alignment of design and CFD modelling standards.
• Driving process improvements across the organisation, including development of automation scripts and tools to improve throughput.
• Supporting rollout of new cooling strategies and design standards.
• Collaborating with other DCE teams to assess how cooling designs and products can be deployed across various site development projects.
• Ability to work on concurrent projects in multiple geographical regions.

Travel will occasionally be necessary but shouldn’t be more than 25%.

About The Team

Why AWS

Amazon Web Services (AWS) is the world’s most comprehensive and broadly adopted cloud platform. We pioneered cloud computing and never stopped innovating — that’s why customers from the most successful startups to Global 500 companies trust our robust suite of products and services to power their businesses.

Diverse Experiences

Amazon values diverse experiences. Even if you do not meet all of the preferred qualifications and skills listed in the job description, we encourage candidates to apply. If your career is just starting, hasn’t followed a traditional path, or includes alternative experiences, don’t let it stop you from applying.

Work/Life Balance

We value work-life harmony. Achieving success at work should never come at the expense of sacrifices at home, which is why we strive for flexibility as part of our working culture. When we feel supported in the workplace and at home, there’s nothing we can’t achieve in the cloud.

Inclusive Team Culture

Here at AWS, it’s in our nature to learn and be curious. Our employee-led affinity groups foster a culture of inclusion that empower us to be proud of our differences. Ongoing events and learning experiences, including our Conversations on Race and Ethnicity (CORE) and AmazeCon (diversity) conferences, inspire us to never stop embracing our uniqueness.

Mentorship and Career Growth

We’re continuously raising our performance bar as we strive to become Earth’s Best Employer. That’s why you’ll find endless knowledge-sharing, mentorship and other career-advancing resources here to help you develop into a better-rounded professional.

Basic Qualifications

• Experience in industrial or commercial engineering in mission critical facilities including but not limited to: data centers, power generation or oil and gas facilities
• Bachelor's degree in Engineering or a related field
• Experience with CAD software (AutoCAD, REVIT, BIM 360, etc.)
• Experience in data center design, HVAC design and related product development
• Knowledge of mechanical systems in critical Data Center operations including but not limited to CRAC/CRAHs/AHUs, chillers, cooling towers, storage tanks, chemical systems, heat exchangers, piping systems, pumps, valves, duct systems, fans, or dampers
• Demonstrated experience with industry CFD software (e.g. ANSYS Fluent, CFX, OpenFOAM, 6SigmaDCX, or equivalent)

Preferred Qualifications

• Experience carrying design concepts through exploration, development, and into deployment or mass production
• Experience reading, interpreting, and creating construction drawings, specifications, and submittal documents
• Experience using a variety of web-based and other software tools for calculation and data processing
• Professional Engineering registration, or experience in automated conveyors systems and controls, electrical and electronic principles, blueprint and electrical schematic reading, CMMS programs, preventive maintenance procedures, industrial electrical, industrial controls , industrial electronics
• Knowledge of building codes and regulations including Life Safety, BOCA, NFPA, NEC, and OSHA
• Master's degree in engineering or equivalent
• Knowledge of programming or other scripting languages and coding skills (C/C++/C#, Node.JS, Java, Python, PHP, Ruby)
• Experience with free-cooling, water-side economiser, and indirect evaporative cooling system design
• Prior consulting or project management experience

Amazon is an equal opportunities employer. We believe passionately that employing a diverse workforce is central to our success. We make recruiting decisions based on your experience and skills. We value your passion to discover, invent, simplify and build. Protecting your privacy and the security of your data is a longstanding top priority for Amazon. Please consult our Privacy Notice (https://www.amazon.jobs/en/privacy_page) to know more about how we collect, use and transfer the personal data of our candidates.

Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.

Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit https://amazon.jobs/content/en/how-we-hire/accommodations for more information. If the country/region you’re applying in isn’t listed, please contact your Recruiting Partner.

Company - Amazon Data Services Ireland Limited