Company facts
- Founded
- 2022
- Employees
- 12
- Headquarters
- United Kingdom
About
Cosine is a fully agentic SWE that allows you to instantly work on every single ticket at once, asynchronously.
Open positions

Machine Learning Engineer – Lumen Enterprise Models (SWE-focused LLMs)
Job title: Machine Learning Engineer – Lumen Enterprise Models (SWE-focused LLMs) Location: London; full in-office working as default Start date: ASAP Reports to: CEO Compensation: Salary and Equity options available…

Defence Account Director
Job Title: Defence Account Director Location: London; full in-office working as default Start date: ASAP Reports to: Founding Defence Lead Compensation: Salary and Equity options available for discussion Clearance:…

ML Systems Engineer - Model Training and Infrastructure (SWE-focused LLMs)
Job title: ML Systems Engineer - Model Training and Infrastructure (SWE-focused LLMs) Location: London; full in-office working as default Start date: ASAP Compensation: Salary and Equity options available for…

Senior Developer Evangelist
Cosine at a glance Cosine is an autonomous, on-premise coding agent post-trained on human reasoning data to deliver unmatched software-engineering accuracy, security, and speed for regulated enterprises What makes us…

Senior Infrastructure Engineer
About the Role We’re looking for a Senior Platform / Infra Engineer to own the core infrastructure that powers Cosine’s products — from Kubernetes and deployment pipelines to networking and platform services. You’ll…

Senior Platform Engineer
About the Role We’re looking for a Senior Platform / Infra Engineer to own the core infrastructure that powers Cosine’s products — from Kubernetes and deployment pipelines to networking and platform services. You’ll…