Does Callosum sponsor visas?
Yes, it can. Callosum Ltd is on the UK sponsor register with an A rating. 5 of its 5 open AI ads mention visa sponsorship.
5
open AI roles
5
ads mention visas
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Sponsorship check
Londoncallosum.com
On the UK sponsor register
Licensed for the Skilled Worker route
5 of 5 ads mention visa sponsorship
We offer Visa sponsorship and relocation benefits to hire the best in the worldFrom Inference Engine Development - Member of Technical Staff.
5 of 5 ads mention relocation help
What it's hiring for
- AI/ML engineering5
Its whole job board
- Every open job on its board12
- In the UK12
- AI roles listed here5
All roles, not only AI, as of 12 Nov.
Open roles
AI roles at Callosum
- Inference Engine Development - Member of Technical StaffLondon29 Oct
CallosumUK register· London
Ad mentions visasAd says it sponsors visasRelocationRelocation help - Inference Performance & Deployment - Member of Technical StaffLondon29 Oct
CallosumUK register· London
Ad mentions visasAd says it sponsors visasRelocationRelocation help - ML Research Engineer - Member of Technical StaffLondon29 Oct
CallosumUK register· London
Ad mentions visasAd says it sponsors visasRelocationRelocation help - Research Engineer, Benchmarking - Member of Technical StaffLondon29 Oct
CallosumUK register· London
Ad mentions visasAd says it sponsors visasRelocationRelocation help - Research Engineer, Evals - Member of Technical StaffLondon29 Oct
CallosumUK register· London
Ad mentions visasAd says it sponsors visasRelocationRelocation help
Pay, visa, relocation and language notes are read from each posting by AI and can be wrong.
Visa sponsorship at Callosum
- Does Callosum sponsor visas in the UK?
- Callosum Ltd is on the UK Home Office register of licensed sponsors (checked 12 Nov 2026) with an A rating for the Skilled Worker route, so Callosum can sponsor Skilled Worker visas. Being on a register doesn't mean every role is open to sponsorship. Of its 5 open AI roles, 5 mention visa sponsorship in the posting.
- What AI roles is Callosum hiring for?
- As of 12 Nov 2026, 5 open AI roles: 5 AI/ML engineering, in London.
- Does Callosum offer relocation support?
- 5 of its 5 open AI postings mention relocation support.
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