Site Reliability Engineer Infrastructure View role →

Cyrion AI; Greater London; Hybrid; GBP 90.000 - 120.000; Vollzeit

Benefits dieser Stelle

Equity

Health coverage

Learning budget

Hardware provided

Zusammenfassung

Cyrion AI is building a security-focused infra platform in London, seeking a Senior SRE to scale Kubernetes workloads and guarantee tenant isolation. You will own the infra that keeps agent testing safe and always-on, improving observability and efficiency.

You will join a highly concurrent system, manage on-call rotations, and drive cost and performance optimizations while shaping security practices across deployments.

Qualifikationen

• 4+ years in SRE/infrastructure roles operating production Kubernetes at scale.
• Strong grasp of network and workload isolation (namespaces, sandboxing).
• Experience with IaC (Terraform or similar) and CI/CD pipelines.

Aufgaben

• Operate and harden the Kubernetes infrastructure running agent workloads and sandbox replicas.
• Own on-call rotation, incident response, and postmortems for the platform.
• Improve observability (tracing, metrics, logging) across a highly concurrent system.
• Drive cost and performance optimization across compute-heavy scanning workloads.

Kenntnisse

Kubernetes at scale

SRE/Infrastructure

Observability

Network isolation

Tools

Terraform

CI/CD pipelines

Jobbeschreibung

Keep an agent swarm that runs continuous, sandboxed offensive testing fast, isolated, and always on.

Every Cyrion engagement spins up isolated sandbox replicas, coordinates dozens of concurrent agents, and streams results in real time. You will own the infrastructure that makes that safe and reliable at scale.

What you'll do

• Operate and harden the Kubernetes infrastructure running agent workloads and sandbox replicas.
• Build strong tenant isolation guarantees between customer engagements — this is a security product; infra security is not optional.
• Own on-call rotation, incident response, and postmortems for the platform.
• Improve observability (tracing, metrics, logging) across a highly concurrent, agent-driven system.
• Drive cost and performance optimization across compute-heavy scanning workloads.

What we're looking for

• 4+ years in SRE/infrastructure roles operating production Kubernetes at scale.
• Strong grasp of network and workload isolation (namespaces, gVisor/Firecracker-style sandboxing, or similar).
• Experience with IaC (Terraform or similar) and CI/CD pipelines.

Nice to have

• Experience operating security or compliance-sensitive infrastructure (SOC 2 / ISO 27001 environments)

Competitive salary plus meaningful early equity, full health coverage, a $2,000/yr learning budget, and your choice of hardware.