Mechanical Engineer Jobs at Fluidstack with Visa Sponsorship
Mechanical Engineer roles at Fluidstack sit at the intersection of hardware infrastructure and high-density compute systems, requiring hands-on experience with thermal management, power delivery, and data center environments. Fluidstack has sponsored E-3 visas for this function, making it a viable path for qualified Australian engineers targeting U.S. tech infrastructure roles.
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At Fluidstack, we’re building the infrastructure for abundant intelligence. We partner with top AI labs, governments, and enterprises - including Mistral, Poolside, Black Forest Labs, Meta, and more - to unlock compute at the speed of light. We’re working with urgency to make AGI a reality. As such, our team is highly motivated and committed to delivering world-class infrastructure. We treat our customers’ outcomes as our own, taking pride in the systems we build and the trust we earn. If you’re motivated by purpose, obsessed with excellence, and ready to work very hard to accelerate the future of intelligence, join us in building what's next.
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.
Key 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.
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.
Compensation Range
- Compensation Range: $150K - $250K
About Fluidstack
At Fluidstack, we’re building the infrastructure for abundant intelligence. We partner with top AI labs, governments, and enterprises - including Mistral, Poolside, Black Forest Labs, Meta, and more - to unlock compute at the speed of light. We’re working with urgency to make AGI a reality. As such, our team is highly motivated and committed to delivering world-class infrastructure. We treat our customers’ outcomes as our own, taking pride in the systems we build and the trust we earn. If you’re motivated by purpose, obsessed with excellence, and ready to work very hard to accelerate the future of intelligence, join us in building what's next.
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.
Key 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.
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.
Compensation Range
- Compensation Range: $150K - $250K
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Get Access To All JobsTips for Finding Mechanical Engineer Jobs at Fluidstack Jobs
Frame your credentials around data center hardware
Fluidstack's infrastructure focus means generic mechanical engineering experience won't stand out. Tailor your resume and portfolio to highlight thermal systems, cooling design, or power distribution work relevant to high-density GPU or compute environments.
Confirm your degree supports a specialty occupation filing
E-3 requires your role to qualify as a specialty occupation and your degree to match. A mechanical engineering degree in thermodynamics or systems design maps cleanly to Fluidstack's hardware roles. If your degree title is broad, gather transcripts showing relevant coursework before applying.
Target open requisitions tied to infrastructure expansion
Fluidstack grows its mechanical engineering headcount when it scales compute capacity. Watch for clusters of open roles as a signal of active hiring cycles. Use Migrate Mate to filter and track Fluidstack's Mechanical Engineer listings and spot those patterns early.
Ask about LCA filing timing before accepting an offer
Your employer must file a certified Labor Condition Application with the DOL before your E-3 visa application proceeds. Clarify during offer negotiation whether Fluidstack's HR team has done this before, so you understand their process and realistic start timeline.
Prepare for consular scrutiny on nonimmigrant intent
E-3 interviews at Australian consulates often probe your ties to Australia. Engineering candidates with housing, financial, or professional connections at home present a stronger nonimmigrant intent case. Document these before your appointment, not after you receive interview confirmation.
Use the 240-day rule if you're already in the U.S. on E-3
If you're changing to a Mechanical Engineer role at Fluidstack while already on E-3 status, your employer can file an E-3 extension before your current status expires. USCIS allows continued work authorization for up to 240 days while the petition is pending.
Mechanical Engineer at Fluidstack jobs are hiring across the US. Find yours.
Find Mechanical Engineer at Fluidstack JobsFrequently Asked Questions
Does Fluidstack sponsor H-1B visas for Mechanical Engineers?
Fluidstack's documented sponsorship activity for Mechanical Engineer roles has been through the E-3 visa, not the H-1B. The H-1B requires entry into an annual lottery capped at 85,000 slots, while the E-3 is available exclusively to Australian citizens and has no lottery. If you're Australian, the E-3 is the more direct path at Fluidstack for this role.
How do I apply for Mechanical Engineer jobs at Fluidstack?
You can find and apply for Mechanical Engineer roles at Fluidstack through Migrate Mate, which filters specifically for visa-sponsoring employers and lets you track Fluidstack's open positions in one place. When applying, emphasize hardware infrastructure experience relevant to Fluidstack's compute platform, and be ready to confirm your Australian citizenship and E-3 eligibility early in the process.
Which visa types are commonly used for Mechanical Engineer roles at Fluidstack?
The E-3 visa is the primary pathway Fluidstack has used for Mechanical Engineer sponsorship. The E-3 is restricted to Australian citizens, requires a job offer for a specialty occupation, and grants two-year work authorization with unlimited renewals. For non-Australian candidates, the O-1A or EB-1 categories may apply if you can document extraordinary ability in mechanical engineering.
What qualifications does Fluidstack expect for Mechanical Engineer roles?
Fluidstack's infrastructure products center on high-density GPU compute, so relevant experience typically includes thermal and cooling system design, power delivery architecture, or hardware validation in data center environments. A bachelor's degree in mechanical engineering is the baseline E-3 requirement, but candidates with hands-on experience in server or rack-scale hardware tend to be more competitive for these roles.
How do I understand the timeline from job offer to starting work at Fluidstack on an E-3?
After receiving an offer, Fluidstack's team files a Labor Condition Application with the DOL, which typically takes one to two weeks to certify. You then schedule a visa interview at an Australian consulate, where appointment availability ranges from two to six weeks depending on location. Most candidates complete the full process and have a visa in hand within six to eight weeks of their offer.
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