Company · 17 open roles
Careers at Callosum
Callosum has 17 active roles on ResuMinder right now. Score your CV instantly and use the ResuMinder extension to apply in seconds — no manual form-filling.
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17 positions at Callosum
Inference System & Performance - Member of Technical Staff
Callosum·London
About Us We’re living through a Cambrian explosion of intelligence: new models and new chips, each specialised for different tasks, are arriving all at once. The result is a new era for AI, one of radical heterogeneity. Callosum is the Intelligent Systems Company. We believe the …
Agent Runtime & Systems - Member of Technical Staff
Callosum·London
About Us We’re living through a Cambrian explosion of intelligence: new models and new chips, each specialised for different tasks, are arriving all at once. The result is a new era for AI, one of radical heterogeneity. Callosum is the Intelligent Systems Company. We believe the …
Networking & Interconnect Systems - Member of Technical Staff
Callosum·London
About Us We’re living through a Cambrian explosion of intelligence: new models and new chips, each specialised for different tasks, are arriving all at once. The result is a new era for AI, one of radical heterogeneity. Callosum is the Intelligent Systems Company. We believe the …
Research Engineer, Evals - Member of Technical Staff
Callosum·London
About Us We’re living through a Cambrian explosion of intelligence: new models and new chips, each specialised for different tasks, are arriving all at once. The result is a new era for AI, one of radical heterogeneity. Callosum is the Intelligent Systems Company. We believe the …
ML Research Scientist - Member of Technical Staff
Callosum·London
About Us We’re living through a Cambrian explosion of intelligence: new models and new chips, each specialised for different tasks, are arriving all at once. The result is a new era for AI, one of radical heterogeneity. Callosum is the Intelligent Systems Company. We believe the …
Evolutionary Optimisation - Member of Technical Staff
Callosum·London
About Us We’re living through a Cambrian explosion of intelligence: new models and new chips, each specialised for different tasks, are arriving all at once. The result is a new era for AI, one of radical heterogeneity. Callosum is the Intelligent Systems Company. We believe the …
Research Engineer, Benchmarking - Member of Technical Staff
Callosum·London
About Us We’re living through a Cambrian explosion of intelligence: new models and new chips, each specialised for different tasks, are arriving all at once. The result is a new era for AI, one of radical heterogeneity. Callosum is the Intelligent Systems Company. We believe the …
Head of Physical Infrastructure
Callosum·London
About Us We’re living through a Cambrian explosion of intelligence: new models and new chips, each specialised for different tasks, are arriving all at once. The result is a new era for AI, one of radical heterogeneity. Callosum is the Intelligent Systems Company. We believe the …
Chief of Staff, CTO
Callosum·London
About Us We’re living through a Cambrian explosion of intelligence: new models and new chips, each specialised for different tasks, are arriving all at once. The result is a new era for AI, one of radical heterogeneity. Callosum is the Intelligent Systems Company. We believe the …
Security Lead - Member of Technical Staff
Callosum·London
About Us We’re living through a Cambrian explosion of intelligence: new models and new chips, each specialised for different tasks, are arriving all at once. The result is a new era for AI, one of radical heterogeneity. Callosum is the Intelligent Systems Company. We believe the …
Compliance Lead - Member of Technical Staff
Callosum·London
About Us We’re living through a Cambrian explosion of intelligence: new models and new chips, each specialised for different tasks, are arriving all at once. The result is a new era for AI, one of radical heterogeneity. Callosum is the Intelligent Systems Company. We believe the …
ML Research Engineer - Member of Technical Staff
Callosum·London
About Us We’re living through a Cambrian explosion of intelligence: new models and new chips, each specialised for different tasks, are arriving all at once. The result is a new era for AI, one of radical heterogeneity. Callosum is the Intelligent Systems Company. We believe the …
Product Manager - Applied AI
Callosum·London, Greater London, United Kingdom
Product Manager - Applied AI at Callosum. Location: London, Greater London, United Kingdom. Role: scoping workflows, acting contact, defining product Requirements: 5+ years customer-facing experience (consulting or venture/operating) with technical foundations to read code and re…
Inference System & Performance Engineer - Member of Technical Staff
Callosum·London, England, United Kingdom
Inference System & Performance Engineer - Member of Technical Staff at Callosum. Location: London, England, United Kingdom. Role: optimizing inference, profiling kernels, building tooling Requirements: Deep knowledge of LLM inference internals and distributed GPU systems; profici…
Platform Site Reliability Engineer - Member of Technical Staff
Callosum·London, England, United Kingdom
Platform Site Reliability Engineer - Member of Technical Staff at Callosum. Location: London, England, United Kingdom. Role: ensuring reliability, monitoring systems, managing incidents Requirements: Experienced SRE with production engineering background, observability, container…
API Platform Architect - Member of Technical Staff
Callosum·London, England, United Kingdom
API Platform Architect - Member of Technical Staff at Callosum. Location: London, England, United Kingdom. Role: designing API, orchestrating workflows, scaling platform Requirements: Deep experience designing, building, and operating production API platforms; strong distributed-…
Inference Engine Development - Member of Technical Staff
Callosum·London, England, United Kingdom
Inference Engine Development - Member of Technical Staff at Callosum. Location: London, England, United Kingdom. Role: build engines, improve scheduling, design parallelism Requirements: Experience with SGLang/vLLM, high-performance Python/C++/CUDA, parallelism design, and open-s…
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