Software Engineer

5 days ago

Greater London, United Kingdom Cosine Full time

Cosine Greater London, England, United Kingdom About the Role An Applications Engineer at Cosine works across research, engineering, product, and design to deliver advanced AI capabilities to consumers and enterprises. You will be responsible for the core infrastructure powering Cosine’s products, including our Kubernetes environments, deployment pipelines, networking stack, cloud abstractions, and foundational platform services. We build systems that enable rapid product iteration while maintaining operational excellence, with a strong emphasis on enterprise‑grade reliability. Our work includes supporting large‑scale deployments for regulated industries, delivering hardened on‑premises installations, and ensuring secure, isolated environments for customers with stringent operational or compliance requirements. The Cloud Infrastructure engineer develops and maintains the infrastructure abstractions that allow Cosine to ship products reliably, securely, and at scale. In this role, you will: 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. You Might Thrive in This Role If You: 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. About Cosine Cosine builds infrastructure, tooling, and products that make advanced AI systems practical, powerful, and widely accessible. This includes enterprise‑grade and fully on‑premises deployments designed for customers requiring strict isolation, compliance, or custom security postures. We support bespoke model hosting, fine‑tuned and custom models tailored to domain‑specific workflows, and deep integration with customer infrastructure. Cosine also offers a collaborative coding agent platform built for teams and enterprises, enabling secure, auditable AI‑assisted software development across complex codebases. We create and deploy AI with a focus on performance, robustness, and real‑world impact. Achieving this requires a team that reflects a wide range of perspectives, backgrounds, and experiences. Seniority level Mid-Senior level Employment type Full‑time Job function Engineering and Information Technology Industries Software Development Referrals increase your chances of interviewing at Cosine by 2x. #J-18808-Ljbffr

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