Principal Software Engineer, Developer Acceleration (Release Engineering)

POS-32873 About the Team HubSpot's Developer Acceleration group empowers over 2,000 engineers to build, test, and deploy their code at scale. The release engineering team owns the full delivery pipeline — from pull request to production — and is responsible for hundreds of thousands of builds per day, including tens of thousands of QA deployments. We're in the middle of a fundamental shift. Agentic AI is changing what release engineering can look like — from AI-powered QA agents that evaluate every deploy, to systems that can reason about risk, surface anomalies, and make autonomous decisions in the delivery pipeline. The team is actively building toward this future, and the opportunity for someone who can help shape it is significant. The team owns and evolves some of the most critical foundational systems inside HubSpot's engineering organization, including build infrastructure, test orchestration, deployment pipelines, and the tooling that underpins incident management and production reliability. This is not a team focused on maintaining existing systems. It is an engineering organization responsible for rethinking how software gets shipped at scale — and what becomes possible when intelligent agents are embedded throughout that process. About the Role We're looking for a Principal Software Engineer to help define the technical future of release engineering at HubSpot — at...