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 power stage and gate-driver boards for every SST cell: SiC half-bridge modules, isolated gate drivers, auxiliary power, and current and voltage sensing.
- Lay out boards for fast-switching SiC with low-inductance commutation loops and creepage and clearance that hold at tens of kilovolts to ground.
- Design isolated auxiliary power and signal links for boards that float at high voltage inside a series stack of cells.
- Bring up boards on the bench with the technicians and test engineer, and close design spins from prototype cells to pilot units.
- Hand off manufacturing-ready packages (fabrication and assembly data, test points, fixtures) to contract manufacturers.
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 and brought up gate-driver and power-stage boards for SiC or GaN converters at hundreds of volts and above.
- You've laid out boards that switch at high dv/dt without false triggering, and can show the loop inductance you designed for.
- You've designed isolated power supplies or signal isolation for circuits floating at high voltage.
- You've met creepage and clearance requirements on a high-voltage board and passed a hipot test with it.
- You've taken a board from schematic to a contract manufacturer and fixed what failed at first article.
- Bonus: PCB design tools (Altium, Cadence). Interconnect design certification (IPC CID, CID+). Power conversion board standards (IPC-2221, IPC-2152, IPC-9592). Sensing for power electronics (Rogowski coils, isolated amplifiers). Laminated busbar design.
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