C
Company summary
Callosum – Visa Sponsorship Jobs & Hiring Insights
- Licensed sponsor
- Frequently hiring
- 40 current openings
Typical roles
Agent Runtime & Systems - Member of Technical Staff, Inference Performance & Deployment - Member of Technical Staff, ML Research Scientist - Member of Technical StaffSponsor route
Skilled WorkerLocation
LondonUpdated
Sep 15, 2026About this sponsor company
Callosum is listed on Noborda as a UK sponsor company with 21 new openings and 39 recent openings. If you are searching for UK visa sponsorship jobs or Skilled Worker visa jobs in the UK, this page shows the company’s current hiring activity and sponsor-linked roles.
This employer is currently frequently hiring for roles such as Agent Runtime & Systems - Member of Technical Staff, Inference Performance & Deployment - Member of Technical Staff, ML Research Scientist - Member of Technical Staff. The current sponsor route shown for this company is Skilled Worker. Location signals point to London. Use the current jobs below to explore whether Callosum is a fit for your UK sponsorship job search.
Current jobs
Back to JobsSecurity Lead - Member of Technical Staff
- London, England, UK
- Explicit sponsorship
- New
Posted 5 days ago
Description: About Us
Accelerator Systems Software - Member of Technical Staff
- London, England, UK
- Explicit sponsorship
- Recent
Posted 7 days ago
Description: About Us
Agent Runtime & Systems - Member of Technical Staff
- London, England, UK
- Explicit sponsorship
- New
Posted 5 days ago
Description: About Us
Cloud Systems & Resource Orchestration - Member of Technical Staff
- London, England, UK
- Explicit sponsorship
- Recent
Posted 7 days ago
Description: We’re living through a Cambrian explosion of intelligence: new models and new chips, each specialised for different tasks, are arriving all at once....
Inference Performance & Deployment - Member of Technical Staff
- London, England, UK
- Explicit sponsorship
- New
Posted 4 days ago
Description: About Us
Networking & Interconnect Systems - Member of Technical Staff
- London, England, UK
- Explicit sponsorship
- New
Posted 5 days ago
Description: About Us
Systems Tooling - Member of Technical Staff
- London, England, UK
- Explicit sponsorship
- Recent
Posted 7 days ago
Description: About Us
Agent Runtime & Systems - Member of Technical Staff
- London, England, UK
- Explicit sponsorship
- New
Posted 5 days ago
Description: About Us
Cloud Systems & Resource Orchestration - Member of Technical Staff
- London, England, UK
- Likely sponsorship
- Recent
Posted 7 days ago
Description: We’re living through a Cambrian explosion of intelligence: new models and new chips, each specialised for different tasks, are arriving all at once....
Inference Performance & Deployment - Member of Technical Staff
- London, England, UK
- Explicit sponsorship
- New
Posted 4 days ago
Description: About Us
Accelerator Systems Software - Member of Technical Staff
- London, England, UK
- Explicit sponsorship
- Recent
Posted 7 days ago
Description: About Us
Agent Runtime & Systems - Member of Technical Staff
- London, England, UK
- Likely sponsorship
- New
Posted 5 days ago
Description: About Us
Research Engineer, Evals - Member of Technical Staff
- London, England, UK
- Explicit sponsorship
- New
Posted 5 days ago
Description: About Us
Site Reliability - Member of Technical Staff
- London, England, UK
- Explicit sponsorship
- Recent
Posted 12 days ago
Description: About Us
Site Reliability - Member of Technical Staff
- London, England, UK
- Explicit sponsorship
- Recent
Posted 12 days ago
Description: About Us
ML Research Scientist - Member of Technical Staff
- London, England, UK
- Explicit sponsorship
- New
Posted 5 days ago
Description: About Us
Evolutionary Optimisation - Member of Technical Staff
- London, England, UK
- Explicit sponsorship
- New
Description: About Us
Applied AI - Member of Technical Staff
- London, England, UK
- Explicit sponsorship
- Recent
Posted 7 days ago
Description: About Us
Inference Performance & Deployment - Member of Technical Staff
- London, England, UK
- Likely sponsorship
- New
Description: About Us
Inference Engine Development - Member of Technical Staff
- London, England, UK
- Explicit sponsorship
- Recent
Posted 14 days ago
Description: About Us
Systems Tooling - Member of Technical Staff
- London, England, UK
- Likely sponsorship
- Recent
Posted 7 days ago
Description: About Us
Head of Physical Infrastructure
- London, England, UK
- Likely sponsorship
- Recent
Posted more than 2 weeks ago
Description: About Us
Agent Runtime & Systems - Member of Technical Staff
- London, ENG, GB
- Explicit sponsorship
- Old
Posted more than 2 weeks ago
Description: About Us
Chief of Staff, CTO
- London, ENG, GB
- Explicit sponsorship
- Old
Posted more than 2 weeks ago
Description: About Us
Compliance Lead - Member of Technical Staff
- London, ENG, GB
- Likely sponsorship
- Old
Posted more than 2 weeks ago
Description: About Us
Evolutionary Optimisation - Member of Technical Staff
- London, ENG, GB
- Explicit sponsorship
- Old
Posted more than 2 weeks ago
Description: About Us
Head of Physical Infrastructure
- London, ENG, GB
- Likely sponsorship
- Old
Posted more than 2 weeks ago
Description: About Us
ML Research Engineer - Member of Technical Staff
- London, ENG, GB
- Explicit sponsorship
- Old
Posted more than 2 weeks ago
Description: About Us
ML Research Scientist - Member of Technical Staff
- London, England, UK
- Explicit sponsorship
- Old
Posted more than 2 weeks ago
Description: About Us
ML Research Scientist - Member of Technical Staff
- London, ENG, GB
- Explicit sponsorship
- Old
Posted more than 2 weeks ago
Description: About Us
Networking & Interconnect Systems - Member of Technical Staff
- London, England, UK
- Explicit sponsorship
- Old
Posted more than 2 weeks ago
Description: About Us
Networking & Interconnect Systems - Member of Technical Staff
- London, ENG, GB
- Explicit sponsorship
- Old
Posted more than 2 weeks ago
Description: About Us
Research Engineer, Benchmarking - Member of Technical Staff
- London, ENG, GB
- Explicit sponsorship
- Old
Posted more than 2 weeks ago
Description: About Us
Research Engineer, Evals - Member of Technical Staff
- London, ENG, GB
- Likely sponsorship
- Old
Posted more than 2 weeks ago
Description: About Us
Security Lead - Member of Technical Staff
- London, ENG, GB
- Explicit sponsorship
- Old
Posted more than 2 weeks ago
Description: About Us
ML Research Engineer - Member of Technical Staff
- London, England, UK
- Explicit sponsorship
- Old
Posted more than 2 weeks ago
Description: About Us
Research Engineer, Benchmarking - Member of Technical Staff
- London, England, UK
- Explicit sponsorship
- Old
Posted more than 2 weeks ago
Description: About Us
Inference System & Performance - Member of Technical Staff
- London, England, UK
- Explicit sponsorship
- Old
Posted more than 2 weeks ago
Description: About Us
Applied AI - Product Manager
- London, England, UK
- Explicit sponsorship
- Old
Posted more than 2 weeks ago
Description: About Us
API Platform Architect - Member of Technical Staff
- London, England, UK
- Explicit sponsorship
- Old
Posted more than 2 weeks ago
Description: About Us
Common questions about Callosum sponsorship
Callosum is a licensed Skilled Worker sponsor. Check each job for its own sponsorship signal before applying.
What roles does Callosum hire for?
Callosum is currently linked with roles such as Agent Runtime & Systems - Member of Technical Staff, Inference Performance & Deployment - Member of Technical Staff, ML Research Scientist - Member of Technical Staff.
Where does Callosum hire in the UK?
Callosum is linked with London in the sponsor data.