Cosine, London, England, GB
On this team you will build end-user products (developer workflow tools) that use
Cosine's LLM and AI tech in order to augment developers’ capabilities for our users.
We're building tools for ourselves. We are our own customer as engineers so you should
be obsessed about the developer experience.
At Cosine, we're pioneering the integration of human reasoning into artificial
intelligence. As a member of our team, you'll be at the forefront of cutting-edge
technology, working to shape the future of AI with our groundbreaking synthetic data
generation and RFT techniques.
Why Work With Us?
advancement of AI.
Github, Knowledge Graphs, Retrieval Augmented Generation, and Fine Tuning.
team environment.
CosunoBerlin/Remote
€90K–€120K / yr
Posted Sep 10, 2026
Raspberry AIUnited States
Pay not posted
Posted Feb 3, 2026
VerloSt. John's, NL
Pay not posted
Posted Jul 16, 2026
AE StudioFlorianopolis office/ Brazil remote +1
$115K–$185K / yr
Posted Aug 20, 2025
kos.aiSan Francisco
Pay not posted
Posted May 7, 2026
CosunoBerlin/Remote
€120K–€150K / yr
Posted Aug 18, 2026
Source: the Y Combinator job board. We last checked this job 6 h ago. We first saw it 5 days ago. A job on a job board does not always mean that the team interviews people now.