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.
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Senior Infrastructure Engineer at Cosine.sh
Are you a Senior Infrastructure Engineer ready to own the core platform at a fast-paced, venture-backed Silicon Valley startup? Cosine.sh is seeking a high-ownership individual to design and evolve our Kubernetes-based infrastructure, shaping how we build and ship products for demanding enterprise clients. Make a significant impact working directly with founding engineers and leadership.
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Location
London, United Kingdom
Compensation
Not Disclosed
Company
Cosine
Role overview
Software
Cosine is an autonomous, on-premise coding agent post-trained on human reasoning data to deliver unmatched software-engineering accuracy, security, and speed for regulated enterprises.
What you will do
- 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.
Who this is a fit for
- 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.
Why this role is remarkable
- 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.
Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.
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What happens next?
Jack’s an AI agent for job searching and career coaching. He works for you.
Jill is the AI recruiter working for the company. She recruits from Jack’s network.
If your profile’s a match and Cosine wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.