About this role
Senior Lead Full Stack Developer (Entra ID/API) at Sparq Holdings, Inc.. Location: Mexico or Uruguay or Costa Rica or Colombia or Chile. Role: designing APIs, implementing authentication, modernizing systems Requirements: Senior backend/full-stack developer experienced with C#, .NET (Core/6+), ASP.NET Core, Entra ID/Azure AD authentication, OAuth/JWT, microservices, and mentoring/leading engineering efforts. Category: Software Development Seniority: Senior Level Tools: C#, .NET Core, .NET 6+, ASP.NET Core, Entra ID, Azure AD, OAuth, JWT, managed identities, Vue.js, React, Angular, AI tools Commitment: Full Time Workplace: Remote Languages: English