Senior Infrastructure Engineer at Cosine.sh

Join Cosine.sh as a Senior Infrastructure Engineer to own and evolve our core Kubernetes-based platform, deployment pipelines, and observability. You'll design the "paved road" for engineers, researchers, and customers, ensuring reliability and security for demanding enterprise deployments. This high-ownership role directly shapes how we build and ship products.

• Own the design, operation, and evolution of our Kubernetes-based platform, including cluster topology and autoscaling.
• Build and maintain robust CI/CD pipelines, implementing safe rollout strategies and fast rollback paths.
• Define and track SLOs, improve observability, and lead incident response to ensure system reliability.

• Possesses 5+ years building and operating production infrastructure on a major cloud (AWS, GCP, or Azure).
• Has significant hands-on experience running Kubernetes in production, including cluster upgrades and multi-environment setups.
• Demonstrates deep experience with Infrastructure-as-Code tools like Pulumi, Terraform, or CDK.

• Take high ownership, directly shaping how Cosine.sh builds and ships products alongside founding engineers and leadership.
• Work at a fast-paced, venture-backed Silicon Valley startup, contributing to a rapidly evolving platform.
• Design and run the "paved road" for engineers, researchers, and customers, impacting core infrastructure from Kubernetes to deployment.