Engineering at Brex is about building systems that scale with speed and intention. Our teams span Software, Data, Security, and IT, and operate with high autonomy and deep collaboration. We tackle hard technical problems, own our outcomes, and push for excellence at every level - from architecture to deployment. It's an environment where engineering is a craft, and builders become leaders. The Senior IT Systems Engineer for Corporate Engineering role involves building, integrating, and monitoring internal tooling infrastructure at Brex, focusing on efficient and automated business processes, data-driven decision-making, and integrating internal services, data sources, and SaaS tools. They maintain core systems for authentication, communication, collaboration, and device access, develop SaaS-first solutions for integration and automation, build tools for user self-sufficiency, and provide Tier 3 support as subject matter experts.