Staff Platform Engineer

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Staff Platform Engineer based in Portugal. This is a hands-on technical leadership role focused on raising the standard for how software is built, tested, delivered, and operated. You will shape the platform foundations that product teams and AI coding agents rely on to move quickly and reliably. The role spans developer experience, CI/CD, infrastructure, automated testing, observability, security, and secure software delivery. You will establish engineering standards, build reusable tooling and golden paths, and help teams adopt workflows that create measurable leverage. A key focus will be AI harness engineering: designing development environments and engineering systems where AI agents can work effectively and safely. You will operate as a builder and technical leader, staying close to code, infrastructure, pipelines, and the evolving needs of engineering teams. This is an opportunity to have organization-wide impact while helping define how modern software teams collaborate with increasingly capable AI agents.