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.