Lead .NET Fullstack Developer | Freelance | Hybrid Lisbon We're hiring a Lead .NET Fullstack Developer for a project with one of the world's leading global professional services firms (Fortune Global 500, 700K+ employees) — Lisbon hub. Hands-on technical leadership on a large-scale digital platform: .NET + React/Next.js + DXP/CMS. Real architectural ownership and team mentorship. Must-have 8+ years as C# .NET Developer (.NET Framework + .NET Core). Hands-on DXP/CMS : Optimizely, Umbraco or equivalent. React + Next.js on the frontend. REST API design and development. SQL + NoSQL database management. Proven technical leadership guiding dev teams. Microservices and scalable system architecture. GitHub Actions / workflows (DevOps). English B2+ (spoken and written). Degree in Computer Science, Business Informatics or equivalent. Nice-to-have Azure or other major cloud providers. ASP.NET Core + Web API. Logistics Hybrid — 2 days/week on-site in Lisbon. Freelance via Shakers. Long-term engagement, immediate start.