The Product Engineering TeamProduct Engineering builds the power and cooling systems that let Fluidstack deliver gigawatt-scale AI data centers faster and denser than the grid-standard supply chain allows. The SST group is designing solid-state transformers as a core building block of that power architecture.
Examples of key problems the team is working on- Architect a medium-voltage solid-state transformer that can be manufactured, serviced, and scaled across gigawatt-scale campuses, not just demonstrated in a lab.
- Define the interface between the SST and the MVDC distribution system, including protection, control boundaries, and fault behavior.
- Build a semiconductor and magnetics supply strategy that survives a thin 10kV SiC market over a multi-year horizon.
- Take converter hardware from topology selection through working prototypes on a schedule that data center construction actually depends on.
Role Scope- Design the SST cell and block in detail: converter implementation, component selection, magnetics interface, and loss and thermal budgets for a 5 MW block on a medium-voltage DC bus.
- Simulate, build and bring up the first cell prototypes with the PCB, firmware and test engineers, and debug them at full voltage and power.
- Turn the program's architecture decisions into a buildable design: schematics, design calculations, and the technical sections of the SST specification.
- Test vendor hardware and data against your own models, and give the program lead the technical evidence behind each make, co-develop or buy call.
- Carry the design through cell, block and pilot-unit design reviews, closing every open loss, thermal and insulation item before the next build.
What We're Looking ForThe below is a starting point. We always make space for exceptional people, so if you don't fit this role exactly, tell us where you would.- You've hands-on developed and validated high-power or medium-voltage power converters at the lab bench, going far beyond writing technical requirements.
- You've engineered isolated DC-DC converters utilizing 1.7 kV+ SiC devices and can rigorously justify your efficiency calculations.
- You've guided conversion systems from initial simulation models through hardware bring-up and full qualification testing.
- You've collaborated directly across PCB, controls, and magnetics domains to balance architectural trade-offs across the unit.
- You've identified hardware bugs during bench evaluation and resolved them in subsequent board iterations.
- Bonus: Solid-state transformer products. Resonant converter topologies (DAB, LLC, CLLC). Circuit simulation. SiC voltage derating. Power conversion safety standards.
We are committed to pay equity and transparency.
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 [redacted] 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.
