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- Own protection and grounding for every zone, from a bipolar medium-voltage DC bus carrying hundreds of megawatts over miles to the 1,500 V solar and battery bus and the 800 V racks.
- Specify, and where no product exists co-develop with vendors, the DC breakers, fuses, and disconnects for these buses, from medium-voltage feeders to hall buses carrying tens of thousands of amps.
- Design fault clearing without conventional breakers where possible, using SSTs that stop switching within microseconds, isolators that open at zero current, and fuses only where paralleled units can backfeed, and prove it in electromagnetic transient studies.
- Turn fault studies into requirements every SST, battery converter, and breaker vendor must meet: fault current contribution, interruption time, and coordination settings.
- Run live short-circuit and interruption tests on an energized multi-SST bus that prove the design to insurers, lenders, and the authority having jurisdiction.
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 designed protection for a medium- or high-voltage DC system (MVDC, HVDC, shipboard, rail, or DC microgrid) and seen it through commissioning.
- You've built and run electromagnetic transient models of converter-dominated systems, and used them to set breaker, fuse, or relay requirements.
- You've made a grounding call (solid, resistance, or floating) and defended its trade-off between fault current and insulation stress.
- You've specified, designed, or qualified DC breakers, fuses, or switchgear for medium-voltage or high-current DC, and tested them through interruption.
- You've written protection requirements a converter or breaker vendor had to redesign to meet.
- You find the failure case others missed and can show it in a single simulation plot.
- Bonus: DC interruption technology (solid-state and hybrid breakers, high-speed DC fuses). EMT simulation (PSCAD/EMTDC, EMTP, PLECS, MATLAB/Simulink). Protection coordination and relay settings (ANSI device functions, IEC 61850). MVDC standards (IEEE 1709). Professional Engineer license (PE).
We are committed to pay equity and transparency.
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