Product 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- Architect the SST end to end, selecting the topology (ISOP DAB stacks, MMC-based, or another approach) and semiconductor strategy, with every choice defended on efficiency, redundancy, manufacturability, and device availability.
- Lead the power electronics, magnetics, and controls engineers from architecture to working hardware, owning the technical decisions that get prototypes built rather than debated.
- Own the system trade-offs and the interface with the MVDC systems team, writing down exactly where the SST stops and the system begins, precisely enough that both teams can design against it.
- Build the program plan and prototype roadmap, and make the build-vs-partner recommendation honestly, including the case where partnering is the right answer.
- Develop vendor and research partnerships across device makers, labs, and universities that secure the devices, test capacity, and expertise the program needs.
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 have 15+ years in power conversion and have led an SST or MV converter program at the level of ABB/Hitachi Energy research, GE, Delta, EPRI, or a FREEDM/ETH/Aachen lineage lab.
- You've owned converter topology selection, semiconductor strategy, and system trade-offs at MW scale, and can defend the choices you made.
- You've led converter development teams from architecture through working hardware, not just papers or simulations.
- You know the SiC ecosystem well enough to write a five-year semiconductor strategy in a market where 10kV devices barely exist.
- You've lived through a program that died or nearly died, and you know exactly why, and what you'd do differently.
- You can write a 12-month program plan for 8 engineers and defend it line by line.
- Bonus: medium-frequency transformer design depth, MVDC system integration experience, established vendor and university research relationships, or certification exposure for MV power conversion.
We are committed to pay equity and transparency.
