atwork.ai is seeking a Senior Developer to own end‑to‑end web applications on a multi‑tenant B2 B Saa S platform. You will code across the stack, review peers, and shape architectural decisions while ensuring quality through automated tests and solid documentation. You will contribute to Azure-based infrastructure, work in an agile team with product, data science and design, and have adaptable remote options within Spain or hybrid in Santander or Barcelona. #J-18808-Ljbffr