Systems Engineer, Claude Code

Anthropic's mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers, engineers, policy experts, and business leaders working together to build beneficial AI systems. At Anthropic, we believe new AI capabilities are best achieved through secure foundations, not in spite of them. As capabilities grow more advanced, it is critical that progress moves forward safely and for the benefit of all society. It is the reason why security sits at the center of our work, and not as an afterthought. We're specifically looking for a Systems Engineer to help us build the core infrastructure for Claude Code's terminal integration and native execution capabilities. The ideal candidate loves to use Claude Code and has deep expertise in systems programming, shell integration, native packaging, and cross-platform development. This role requires someone who thrives at the intersection of low-level systems work and developer tooling, with a passion for creating seamless CLI experiences. Responsibilities: Design, build, and maintain Claude Code's core terminal integration system, including shell discovery, process lifecycle management, and cross-platform execution environments Architect native packaging solutions using modern bundling technologies like Bun, creating standalone executables that work seamlessly across macOS, Linux, and Windows Implement and optimize system-level features including shell environment capture/restoration, terminal state persistence, and native module integration (NAPI, WASM) Implement low-level terminal protocols including OSC sequences, ANSI escape codes, and terminal capability detection for rich CLI experiences across different terminal emulators Build and maintain the multi-architecture build pipeline, managing asset bundling, code signing, and platform-specific optimizations for production deployments Work on performance-critical systems code including process spawning, memory management, signal handling, and secure file operations across different deployment modes Develop cross-platform compatibility layers and testing infrastructure to ensure Claude Code works reliably on all supported operating systems and architectures Collaborate with security teams on sandboxing, secure asset extraction, and preventing sensitive information leakage in distributed binaries

Anthropic's mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers, engineers, policy experts, and business leaders working together to build beneficial AI systems.