Callosum Ltd: visa sponsorship and 12 live sponsored jobs (2026)
Callosum Ltd is a licensed UK visa sponsor. The register lists it in London, licensed for Skilled Worker with an A rating since 11 June 2026. As of 31 October 2026 it has 12 live jobs on Tarve, each matched to this register entry. Source: gov.uk Register of Licensed Sponsors (workers), checked 31 October 2026.
| Sponsor licence | On the register (31 October 2026) |
| Routes licensed | Skilled Worker |
| Rating | A rating |
| Registered town | London · all sponsors in London |
| Live sponsored jobs | 12 (London 12) |
| Companies House | 16076949 |
Latest sponsored jobs at Callosum Ltd
- Security Lead - Member of Technical StaffLondon · posted 19 Aug 2026
- Research Engineer, Evals - Member of Technical StaffLondon · posted 19 Aug 2026 · SOC 2129
- Agent Runtime & Systems - Member of Technical StaffLondon · posted 19 Aug 2026
- ML Research Engineer - Member of Technical StaffLondon · posted 19 Aug 2026 · SOC 2129
- Evolutionary Optimisation - Member of Technical StaffLondon · posted 19 Aug 2026
See all 12 jobs at Callosum Ltd
What Callosum Ltd hires on the Skilled Worker route
Occupation codes on its live jobs, with the gov.uk going rate for each (the minimum is the higher of the going rate and £41,700).
| SOC code | Occupation | Going rate | Live jobs |
|---|---|---|---|
| 2129 | Engineering professionals not elsewhere classified | £46,100 | 4 |
| 3113 | Engineering techniciansTSL | £42,500 | 1 |
Frequently asked questions
Does Callosum Ltd sponsor UK work visas?
Yes. Callosum Ltd appears on the gov.uk Register of Licensed Sponsors with a licence for Skilled Worker (A rating), checked on 31 October 2026. A licence means the organisation can sponsor eligible roles; it does not guarantee sponsorship for any particular job.
How many visa-sponsored jobs does Callosum Ltd have right now?
Callosum Ltd has 12 live jobs on Tarve as of 31 October 2026, each matched to the company's register entry, mostly in London.
What is the minimum salary for a sponsored job at Callosum Ltd?
It depends on the occupation code. Callosum Ltd's most common live code is 2129 (Engineering professionals not elsewhere classified), with a going rate of £46,100 a year; a new Skilled Worker application must pay the higher of that and the £41,700 general threshold.
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Source: gov.uk Register of Licensed Sponsors (workers), compared daily by Tarve; licence data as of 31 October 2026. Live jobs are those on Tarve matched to this register entry on 2 November 2026. A licence shows the organisation may sponsor eligible roles; whether it sponsors a given role is its decision. Tarve is an independent information service, not a regulated immigration adviser. All employers: UK sponsors hiring now.