Software Engineer, Cloud Infrastructure
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Responsibilities
• Design and build development and production platforms that power Cosine products, enabling reliability and security at scale. • Ensure our infrastructure can scale to the next order of magnitude. • Contribute to a culture that values diversity, rigorous thinking, and open, direct communication. • Participate in the on-call rotation to ensure reliability of the systems you build, responding to critical incidents when necessary. • Have 5+ years of experience developing or operating core infrastructure. • Have experience running large-scale orchestration systems such as Kubernetes. • Have built abstractions and tooling on top of major cloud platforms. • Take pride in building scalable, reliable, and secure systems. • Are comfortable working in a fast-moving environment with evolving priorities.
Benefits
• ___________________________________________________________________________ • Cosine at a glance • At Cosine, we’re building autonomous AI engineers that plan, write, and ship code inside real development workflows. • Cosine is designed for on-premise and virtual private cloud (VPC) deployments, including fully air-gapped environments. We build our agent tooling entirely in-house and post-train open-source models to deliver reliable, enterprise-grade coding performance in security-critical settings. • In 2024, Cosine achieved a 72% score on OpenAI’s SWE-Lancer benchmark, placing us among the strongest real-world software-engineering AI systems evaluated. • YC-backed and well-funded, Cosine was founded by experienced operators focused on building dependable, production-grade AI. • This role is based in our Hoxton office, five days a week, because close collaboration, fast feedback, and shared context matter for the problems we’re solving.