Careers / Open roles
Build the human data layer for AI
Join the team building the human infrastructure layer for frontier model training — and redefining participation in the age of AI.

Our mission
We're here to build something that matters.
We believe AI has the potential to make humanity smarter, healthier, safer, and more capable than ever before. But for AI to truly understand and improve our world, it needs to learn from more than what's on the internet. It needs to learn from life itself. From human experiences, perspectives, judgment, and all the messy, wonderful complexity of the real world.
That's why we're building Kaius: the human data infrastructure for the next generation of AI. We're creating an entirely new way for people everywhere to participate in shaping intelligent systems, turning the act of training AI into something engaging, rewarding, and genuinely fun. Because we believe the future of AI should be built by humans, with humans, and for humans.
If you want real ownership and an ambitious brief, you'll do your best work here.






Hard, valuable, fun.
We believe the only problems worth solving are exceptionally hard, extremely valuable, and incredibly fun.
01
Give a shit
Care about the details. Care about the outcome. Care about whether what you're building is actually good. Take pride in your work. The best people don't need to be told to care.
02
High bar, no ceiling
We hire exceptional people and hold ourselves to exceptional standards. In our work, our product, and the people we surround ourselves with. We're proud of what we build, but there's always another level.
03
Do the thing
See a problem? Fix it. Have an idea? Make it happen. You shouldn't wait to be told. The best people use their judgment, take initiative, and own the outcome. Less talking about what we should do. More actually doing it.
04
Redefine the playbook
Nobody's written the playbook for what we're building. We're all figuring it out. Stay curious, ask questions, challenge your assumptions, and be willing to learn something new every day.
05
Play to win
We're not building something small. We're here to take big swings, compete with the best, and build something that changes the world. We like ambitious goals, impossible odds, and people who are hungry to win.
Open roles
No role that fits? Reach out and we’ll keep you in mind.
Product Manager, Platform
Product
Full-time
San Francisco (preferred) or New York
Head of Solutions, AI Training Data
Solutions
Full-time
San Francisco or New York
Frontend Engineer, Flutter
Engineering
Full-time
Remote-friendly, with time together in person
Founding Product Lead
Product
Full-time
San Francisco or New York (US remote considered)
Working At Kaius
We asked a few of our colleagues they like about working at Kaius.

“Nobody waits for permission here. You own the brief, start to finish. It's amazing to work with a team like this.”
Qasim Mian / Growth

"I love getting to work directly with some of the world's leading labs on the hardest problems in the industry."
Shaya Deaton / GTM

“I like being able to work on something intellectually interesting and technically challenging.”
John Miller / Engineering

We’d love to work with you
Excited about capturing reality? Find the role where you’d own the most.