About Fluidstack

We exist to make humanity more free. For most of human history, you farmed or you starved. Technology gave people more time for the things they wanted to do, instead of things they had to do. Powerful AI will be the biggest lever for human choice we've ever built - but only if models are aligned with what humanity actually wants. There are groups building AI who don't share these goals. Whoever deploys frontier compute infrastructure fastest will decide whether AI expands human freedom or shrinks it.

We're singularly focused on delivering 10 to 100s of GWs of compute faster than anyone else, rethinking every layer of the stack. We acquire power, design and build data centers, and operate them - with teams spanning hardware and software. Speed and scale are our key differentiators. Come be a part of building civilization-scale infrastructure for AI.

We hire people who care deeply about this problem space. If that is you, please apply!

About the Role

As a Mechanical Engineer at Fluidstack, you will play a pivotal role in architecting the next generation of AI-optimized infrastructure as we scale to deliver multiple gigawatts of facilities. This is a high-impact engineering position focused on owning mechanical systems end-to-end, from early concept and analytical modeling through final build and deployment.

You will lead the development of modular template designs and innovative supply-chain-aware solutions that enable rapid global deployment. Acting as the technical bridge between internal strategy and external execution, you will manage specialized partners and consultants to ensure designs integrate seamlessly with Fluidstack’s high-density cooling and power requirements. This role is designed for a problem-solver who thrives in complex environments and wants full ownership of the mechanical lifecycle for gigawatt-scale data centers.

Responsibilities

• Lead the design and evolution of mechanical systems for AI-optimized, high-density data centers.

• Develop and maintain modular mechanical templates to support rapid, repeatable global deployment.

• Serve as the technical interface between internal teams and external consultants, ensuring alignment with Fluidstack requirements.

• Ensure mechanical designs integrate seamlessly with high-density cooling and power architectures.

• Own mechanical systems from initial concept and analytical modeling through final build and execution.

• Apply strong analytical judgment through CFD modeling and capacity planning to inform design decisions.

• Hold external partners accountable for technical excellence, while remaining adaptable as project needs evolve.

Basic Qualifications

• Bachelor’s degree in Mechanical Engineering.

• 5–8 years of experience designing large-scale industrial or mission-critical facilities, specifically data centers.

• Demonstrated expertise in high-density cooling systems, including liquid-to-chip and immersion cooling.

• Proficiency in Revit / BIM for template creation and design development.

• Strong analytical skills, including CFD modeling and capacity planning.

• Proven ability to operate with extreme ownership and manage complex external relationships.
  
  

Preferred Qualifications

• Professional Engineer (PE) license.

Benefits

• Competitive total compensation package (salary + equity).

• Retirement or pension plan, in line with local norms.

• Health, dental, and vision insurance.

• Generous PTO policy, in line with local norms.
  
  

The salary range for this position is $200,000 - $250,000 per year, depending on experience, skills, qualifications, and location. This range represents our good faith estimate of the compensation for this role at the time of posting. Total compensation may also include equity in the form of stock options.

We are committed to pay equity and transparency.

Fluidstack is an Equal Employment Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability and protected veterans’ status, or any other characteristic protected by law. Fluidstack will consider for employment qualified applicants with arrest and conviction records pursuant to applicable law.

You will receive a confirmation email once your application has successfully been accepted. If there is an error with your submission and you did not receive a confirmation email, please email careers@fluidstack.io with your resume/CV, the role you've applied for, and the date you submitted your application- someone from our recruiting team will be in touch.