Senior Full-Stack Developer for B2B SaaS

We are looking for a Senior Full-Stack Developer to build a white-label B2B SaaS platform on top of an existing third-party API. The ideal candidate has strong experience building scalable SaaS applications, integrating external APIs, and delivering production-ready products. Responsibilities • Integrate and manage a third-party API as the core data source • Build a multi-tenant SaaS architecture (Agency → Clients → Projects) • Develop dashboards with tables, charts, filters, and reporting features • Implement authentication flows (Login, Magic Link, Password Reset) • Configure transactional email delivery with a custom domain • Deliver a secure, scalable, and production-ready MVP Requirements • Strong experience with React or Next.js • Strong experience with Node.js (Express/NestJS) or Django • Proven expertise in third-party API integrations • Experience building B2B SaaS products • Familiarity with cloud deployment platforms such as AWS, Vercel, or Railway • Ability to work independently and communicate effectively To Apply Please include: • 1–2 B2B SaaS products you have built • Your role and responsibilities in those projects • Your current availability • Your monthly rate We are looking for a reliable long-term partner who can help us build and scale the platform.