Senior Full-Stack Engineer - AI Cost Visibility

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Full-Stack Engineer - AI Cost Visibility based in Portugal. As a Senior Full-Stack Engineer, you will take end-to-end ownership of a product helping organizations understand and optimize the rapidly growing costs of AI workloads. You will work across backend services, APIs, data processing, and modern frontend experiences, turning complex cloud and AI spending data into clear, actionable insights. This is a high-impact opportunity to join an R&D team working on a young product in a rapidly evolving market where you can directly influence both the technology and product direction. You will collaborate closely with product and engineering stakeholders while having significant autonomy to identify problems and define solutions. The role combines strong engineering fundamentals with product thinking, requiring you to care equally about technical quality and customer outcomes. You will also work AI-augmented throughout your development workflow, exploring how emerging tools can improve engineering velocity without compromising quality or reliabilit... Click Apply to read the full job description.