Callosum
AI & compute company
Is Callosum hiring?
Yes. As of October 13, 2026, Callosum has 12 open roles on Metaintro.
Open roles
Newest first. Pay shown when the posting lists it.
RoleLocationSetupPayPosted
- Applied AI - Member of Technical StaffDeveloperLondon · On-siteLondonOn-site—7d ago
- ML Research Engineer - Member of Technical StaffArtificial Intelligence/Machine LearningLondon · On-siteLondonOn-site—Aug 20, 2026
- Evolutionary Optimisation - Member of Technical StaffDeveloperLondon · On-siteLondonOn-site—Aug 20, 2026
- Networking & Interconnect Systems - Member of Technical StaffScience, Technology, Engineering, and MathLondon · On-siteLondonOn-site—Aug 20, 2026
- Research Engineer, Benchmarking - Member of Technical StaffArtificial Intelligence/Machine LearningLondon · On-siteLondonOn-site—Aug 20, 2026
- Security Lead - Member of Technical StaffSecurityLondon · On-siteLondonOn-site—Aug 20, 2026
- Agent Runtime & Systems - Member of Technical StaffDeveloperLondon · On-siteLondonOn-site—Aug 20, 2026
- Research Engineer, Evals - Member of Technical StaffArtificial Intelligence/Machine LearningLondon · On-siteLondonOn-site—Aug 20, 2026
Hiring pattern
How fast Callosum is adding roles, and how they're set up.
New roles each monthRoles first posted in the month
2
11
0
0
JulyAugustSeptemberOctober
Skills they ask for
Most frequent across open postings.
Most requested skills
- Python
Tech stack
- Libraries
- D3.js
- Tailwind CSS
- Analytics
- Google Tag Manager
- Frameworks
- Next.js
- CMS
- Sanity
Company facts
- Industry
- AI & compute company
- Sector (NAICS)
- Information
- Website
- callosum.com
- Careers
- callosum.com/join-us
Questions about Callosum
- Is Callosum hiring?
- Yes. As of October 13, 2026, Callosum has 12 open roles on Metaintro. The most are in Developer (5), Artificial Intelligence/Machine Learning (4), and Science, Technology, Engineering, and Math (2).
- What skills does Callosum look for?
- Its open roles most often ask for Python.