Jobs in the United States

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Added 9 mins ago
Member of Technical Staff, Security
Sieve
San Francisco, CA
All roles at Sieve require you to be onsite in San Francisco 5 days per week.
Added 18 mins ago
F
Controls and Firmware Engineer, Power Electronics
Fluidstack
Austin, TX · Phoenix, AZ
- $210,000 to $270,000 USD / year
Added 18 mins ago
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Power Electronics Engineer
Fluidstack
Austin, TX · Phoenix, AZ
- $210,000 to $270,000 USD / year
- You've collaborated directly across PCB, controls, and magnetics domains to balance architectural trade-offs across the unit.
Added 27 mins ago
O
Senior Core Infrastructure Engineer
Oracle
Nashville, TN
- $79,200 to $209,500 USD / year
…troubleshooting and maintenance, and applies advanced security controls (encryption, access, remediation) while ensuring change, compliance, and documentation standards are…
Added 28 mins ago
Associate Software Engineer, Fleet Support & Automation
Intramotev
St. Louis, MO
…- and most of those issues should not pull a core software engineer off their work. We are seeking an Associate Software Engineer, Fleet Support & Automation to be the first software…
Added 28 mins ago
Electrical/ I&C / Digital Process Systems Engineer
Duke Energy Carolinas, LLC
York, SC
However, hybrid employees must live within a reasonable commute to their designated Duke Energy facility, not greater than 50 miles one way · Hybrid work arrangement: after onboarding, employees must work onsite at Catawba Nuclear Station at least two days per week, with two remote days
Added 30 mins ago
General Maintenance Technician
White Lodging
Austin, TX
Support the Chief Engineer in overseeing and supervising all aspects of the Engineering function of the hotel.
Added 39 mins ago
Staff Site Reliability Engineer
Jobgether
Remote, United States
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Staff Site Reliability Engineer based in the United States.
Added 51 mins ago
BS
Engineering Leader - Optical Communications
Bright Silicon Technologies
Pleasanton, CA
- $175,000 to $275,000 USD / year
Work alongside experienced engineers and outside specialists in optics, electronics, controls, communications, and software.
Added 58 mins ago
Industrial Engineer
Saber Power Services
Baton Rouge, LA
The Industrial Engineer is responsible for driving manufacturing efficiency, productivity, quality, and continuous improvement across the Protective Relay Panel, Power Quality Capacitor…
Added 1 hour ago
AT
AI Cybersecurity Engineer
Agilent Technologies
Colorado Springs, CO
- $139,440 to $217,875 USD / year
The AI Cybersecurity Engineer will play a critical role in evaluating emerging AI technologies, assessing cybersecurity and compliance risks associated with commercial and internally…
Added 1 hour ago
AT
Process Engineer - Advanced
Agilent Technologies
Frederick, CO
- $103,200 to $161,250 USD / year
Join a growing team with this exciting new opportunity for an advanced level Process Engineer at our Frederick, Colorado GMP facility. Work in our dynamic, fast-paced, API-Biopharma…
Added 1 hour ago
Director of Engineering - Custer State Park Resort
Xanterra Travel Collection
Custer, SD
Added 1 hour ago
J
DevOps Engineer
Jobgether
Remote, United States
- $115,000 to $155,000 USD / year
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a DevOps Engineer based in the United States.
Added 1 hour ago
Data AI ServiceNow Engineer
Jobgether
Remote, United States
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Data AI ServiceNow Engineer based in the United States.
Added 1 hour ago
Ammonia Refrigeration Engineer
Produce Careers
Salinas and Oxnard, CA
A well-established full-service provider of precooling equipment, facilities, and services, is seeking an Engineer to join their team. This position will support the development,…
Added 1 hour ago
Senior Machine Learning Engineer, Search & Personalization
Bask Health
Remote, United States
We're looking for a Senior Machine Learning Engineer, Search & Personalization to design, build, and improve intelligent search, discovery, and personalization capabilities across Bask…
Added 1 hour ago
Senior Product Engineer
Stryker Employment Company, LLC
Tempe, AZ
Hybrid: candidates must reside within commuting distance of Tempe, AZ and be able to work onsite several days per week
Added 1 hour ago
Senior Staff Engineer, Data Platform
Qualified Health PBC
Remote, United States
We are hiring a Senior Staff Engineer to set the technical direction for the Data Platform and to build it hands-on. Databricks is the center of the role: you will own the architecture of…
Added 1 hour ago
CO
Water Resources & Development Division Manager
City of South Gate
South Gate, CA
- $71.01 to $86.32 USD / hour
Under the direction of the Director of Public Works/City Engineer, the Water Resources and Development Division Manager is responsible for supervising and managing major functions of the…
Added 1 hour ago
MEP Engineer - 1S6J017
SNIPEBRIDGE
Remote, United States
The MEP Engineer will design and coordinate the building systems that support reliable, high-density technical environments. Depending on discipline, the role may focus on mechanical,…
Added 1 hour ago
MEP Engineer - 1S6J017
SNIPEBRIDGE
Remote, United States
The MEP Engineer will design and coordinate the building systems that support reliable, high-density technical environments. Depending on discipline, the role may focus on mechanical,…
Added 1 hour ago
MEP Engineer - 1S6J017
SNIPEBRIDGE
Remote, United States
The MEP Engineer will design and coordinate the building systems that support reliable, high-density technical environments. Depending on discipline, the role may focus on mechanical,…
Added 1 hour ago
Senior Systems Design Engineer - 1S6J024
SNIPEBRIDGE
Remote, United States
The Senior Systems Design Engineer will define and coordinate the integrated systems that allow critical facilities to be monitored, controlled, protected, and operated reliably. The role…
Added 1 hour ago
Senior Systems Design Engineer - 1S6J024
SNIPEBRIDGE
Remote, United States
The Senior Systems Design Engineer will define and coordinate the integrated systems that allow critical facilities to be monitored, controlled, protected, and operated reliably. The role…

Fluidstack

Controls and Firmware Engineer, Power Electronics

Austin, TX, United States
Phoenix, AZ, United States

$210,000 to $270,000 USD / year

Apply on jobs.ashbyhq.com About employer

Applications open in a new tab.

Job details

Pay: $210,000 to $270,000 USD / year
Posting language: English
Posted: Nov 11, 2026

Original job description

ABOUT FLUIDSTACK

We exist to make humanity more free. For most of human history, you farmed or you starved. Technology gave people more time for the things they wanted to do, instead of things they had to do. Powerful AI will be the biggest lever for human choice we've ever built - but only if models are aligned with what humanity actually wants. There are groups building AI who don't share these goals. Whoever deploys frontier compute infrastructure fastest will decide whether AI expands human freedom or shrinks it.

We're singularly focused on delivering 10 to 100s of GWs of compute faster than anyone else, rethinking every layer of the stack. We acquire power, design and build data centers, and operate them - with teams spanning hardware and software. Speed and scale are our key differentiators. Come be a part of building civilization-scale infrastructure for AI.

We hire people who care deeply about this problem space. If that is you, please apply!

HOW WE OPERATE

Be a barrel. Full autonomy. Own things end to end, take on scope without being asked, no permission required to operate outside your core role.
Insane urgency. We drive everything forward as fast as possible.
Reason from first principles. Challenge every assumption. Zero analogy thinking, no egos, the best idea wins.
Love of the game. The frontier of AI is the most interesting problem of our time. We put in long hours at high intensity to push the frontier forward.
Build something that actually matters. If you're going to spend your time, spend it on something that matters to the world.

THE PRODUCT ENGINEERING TEAM

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

Write the control firmware for every SST cell and block: modulation, closed-loop voltage and current control, and voltage sharing across dozens of series-stacked cells.
Build the fast protection path that detects a fault and shuts the converter down within microseconds, from sensing to safe state.
Sequence startup, precharge, cell bypass, and the reconfiguration of the output from 800 V to 1,500 V.
Connect cell controllers to the block master and the site control system across isolation barriers, with telemetry operators can act on.
Prove the firmware on hardware-in-the-loop rigs before it runs on a high-voltage prototype.

WHAT WE'RE LOOKING FOR

The 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. https://jobs.ashbyhq.com/fluidstack/05c2e69c-42f9-4fcb-9cf0-a467aaf98f1c

You've written control firmware that runs a power converter at full power, and debugged it on the bench with a scope in hand.
You've controlled resonant or dual active bridge converters, or balanced series-connected cells.
You've built protection logic in an FPGA or DSP that trips in microseconds and fails safe.
You've used hardware-in-the-loop or model-based design to catch bugs before they reached hardware.
You keep firmware in version control with reviews and automated tests, and can show the release history of something you shipped.
Bonus: Embedded targets for power control (TI C2000, Xilinx or Intel FPGAs). Model-based design (MATLAB/Simulink, PLECS). Hardware-in-the-loop platforms (Typhoon HIL, OPAL-RT). Industrial communication (CAN, EtherCAT, fiber links). Functional safety practice (IEC 61508, MISRA C).

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.

Applicant Privacy Notice https://fluidstack.io/legal/applicant-privacy-notice AI Screening Notice https://fluidstack.io/legal/ai-screening-notice Ashby Bias Audit https://fluidstack.io/legal/ashby-bias-audit

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.

Work requirements

Jobs in the United States