Principal Software Engineer, Platform (DevEx)

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Principal Software Engineer, Platform (DevEx) based in United States. This is a high-impact Principal Engineer opportunity within a lean, highly autonomous Developer Experience team.You’ll shape AI-native platform infrastructure designed to help engineering teams build and operate at unprecedented speed.The role spans agent orchestration, coding-agent runtimes, developer environments, build systems, CI/CD, and platform guardrails.Your architectural decisions will establish patterns that other engineering teams can adopt across the organization.You’ll operate with a long-term technical horizon, anticipating platform needs and solving complex problems before they become organizational blockers.The environment values deep technical expertise, independent decision-making, experimentation, and a strong bias toward practical delivery.You’ll also mentor senior engineers and help define the future of AI-assisted software development at enterprise scale.