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Callosum

$10.25M · Feb 2026 · 12 open roles

AI infrastructure company for AI models

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Open roles at Callosum

12 roles

Research Engineer, Benchmarking - Member of Technical Staff

Data & Analytics · London

£101K - £192K

Aug 21

Accelerator Systems Software - Member of Technical Staff

Engineering · London

£101K - £192K

Aug 15

Evolutionary Optimisation - Member of Technical Staff

Engineering · London

£101K - £192K

Aug 21

Inference Engine Development - Member of Technical Staff

Engineering · London

£101K - £192K

Aug 15

Inference Performance & Deployment - Member of Technical Staff

Engineering · London

£101K - £192K

Aug 15

Networking & Interconnect Systems - Member of Technical Staff

Engineering · London

£101K - £192K

Aug 21

Expression of Interest - Intelligent Systems Engineer

Expression of Interest · London

Not disclosed

Aug 15

Expression of Interest - Internships

Expression of Interest · London

Not disclosed

1w ago

Agent Runtime & Systems - Member of Technical Staff

General Capabilities · London

£101K - £192K

Aug 21

ML Research Engineer - Member of Technical Staff

General Capabilities · London

£101K - £192K

Aug 21

Research Engineer, Evals - Member of Technical Staff

General Capabilities · London

£101K - £192K

Aug 21

Security Lead - Member of Technical Staff

Office of the CTO · London

Not disclosed

Aug 21

Callosum Careers: 12 Open Roles