Callosum jobs, careers, and hiring context

Explore Callosum careers: 13 open roles hiring now. Find jobs at Callosum with direct links to apply. Funding stage: Seed. Headcount: 11-50. Callosum is a London-based AI infrastructure startup founded by Cambridge University neuroscientists that builds orchestration software to route AI workloads to the cheapest suitable combination of models and chips. It raised $100 million in seed funding led by Atomico with participation from Plural, DCVC, and the UK Sovereign AI Fund, following a $10.25M pre-seed round.

This page summarizes open roles, company profile signals, and official application paths so candidates can quickly evaluate fit before applying. Use the role list below to identify team focus, review location patterns, and jump to source listings. For broader comparison across the market, continue to the full company directory and jobs explorer.