Cloud Systems & Resource Orchestration - Member of Technical Staff

About the Company

Callosum is the Intelligent Systems Company. We believe intelligence emerges from the diversity of co-optimised mechanisms working together. We co-evolve models, workflows, and silicon to build the next era of heterogeneous compute infrastructure.

Responsibilities

• Design and build multi-cloud orchestration systems that abstract provider-specific differences behind a unified deployment and scheduling layer
• Extend Kubernetes, particularly Dynamic Resource Allocation (DRA), to be aware of heterogeneous accelerator topologies and multi-agent AI workflows
• Implement intelligent load balancing and placement strategies across cloud providers, regions, and hardware types
• Build control plane systems that enable efficient allocation and management of heterogeneous accelerator capacity
• Collaborate with Accelerator Systems Software engineers to surface low-level scheduling primitives into the orchestration layer

Requirements

• Strong experience with Kubernetes internals including custom controllers, schedulers, device plugins, CRDs, and the DRA framework
• Experience building or operating multi-cloud infrastructure with understanding of networking, storage, and compute differences
• Familiarity with GPU/accelerator resource management (e.g. MIG, time-slicing, topology-aware scheduling)
• Experience with infrastructure-as-code, fleet management, and reliability engineering for large-scale systems

Benefits

• Competitive Salary
• Equity & Ownership
• Private healthcare
• Visa sponsorship and relocation benefits