Callosum

Site Reliability - Member of Technical Staff

Callosum
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3 months ago
London, United KingdomSenior
H1B sponsor

Responsibilities

  • Define and own the platform’s production-grade reliability practice end to end.
  • Build service-level objectives, monitoring, alerting, and observability.
  • Own on-call and incident response, including runbooks, escalation, blameless postmortems, and follow-through.
  • Lead capacity planning and the operational management of heterogeneous compute backends.
  • Set technical direction in collaboration with the platform team and work with hardware and orchestration teams to expose backends reliably.

Requirements

  • Strong SRE or production-engineering background running customer-facing systems at scale.
  • Fluency with modern operational tooling, including observability stacks, container orchestration, infrastructure-as-code, and CI/CD.
  • Experience owning incident response and driving reliability improvements.
  • Compliance execution experience.
  • Open-source contributions to relevant infrastructure or detailed experience with production systems of significant scale and complexity is valued.
  • Early-stage and AI-native company experience is valued.

Benefits

  • Competitive salary determined by skills and experience.
  • Equity and ownership.
  • Private healthcare.
  • Visa sponsorship and relocation benefits.
  • In-person work at the London office with provided tools, workspace, and setup.

Categories

Site Reliability
Callosum

About Callosum

11-50 employees
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