Senior .NET/Vue.js Developer

At Sparq, we help companies solve the right problems—not just build more technology. We’re a modern product engineering partner blending strategy, craftsmanship, and speed to help organizations modernize confidently in the age of AI. From data ecosystems to digital products and AI acceleration, we turn complexity into clarity and ideas into impact. If you’re driven to build what’s next, lead with empathy, and deliver excellence without ego, you’ll feel right at home at Sparq. Why you will enjoy Mondays again: Opportunity to collaborate with a diverse group of colleagues in a fun, creative environmentProgressive career journey and opportunity for advancementContinuous development through training, mentorship and certification programsExposure to modern technologies across various industries in an agile environmentRemote work A Day in the Life: Design and implement secure authentication and authorization flows across backend services using modern identity standards (OAuth, JWT)Build and maintain robust APIs using ASP.NET Core, ensuring security, scalability, and performance within an Azure environmentPartner closely with architects and engineering peers to translate security and identity requirements into scalable backend solutionsLead and support the migration to Microsoft Entra ID, including integration of managed identities and token-based access patternsDevelop and enhance service-to-service authentication mechanisms to support distributed and microservices-based architecturesCollaborate with front-end engineers (Vue, React, or Angular) to ensure seamless and secure authentication flows between UI and backend systemsParticipate in code reviews, debugging, and performance tuning with a strong emphasis on secure coding practicesTroubleshoot authentication and access-related issues across environments, ensuring reliability and compliance with security standardsContribute to ongoing improvements in architecture, tooling, and development practices within a cloud-native Azure ecosystem What it takes: Strong experience with C# and modern .NET (Core / .NET 6+) for building scalable backend servicesProven experience designing and implementing secure APIs, including authentication and authorization mechanismsHands-on expertise with Microsoft Entra ID (Azure AD), including authentication flows and identity managementDeep understanding of token-based authentication (OAuth 2.0, JWT) and how it applies across distributed systemsExperience building and deploying applications within Microsoft Azure, including identity and access management servicesSolid understanding of microservices architecture and secure service-to-service communication patternsAbility to collaborate effectively with architects and engineering teams to align with security and architectural standardsFamiliarity with front-end frameworks (Vue.js preferred; React or Angular acceptable) to support authentication flow integrationExperience working in security-focused or regulated environments is a strong plusExposure to API gateways, identity providers, or advanced access control solutions is preferred Regardless of your specific role, we seek individuals who are excited to explore, adopt, and evangelize AI tools and methodologies. If you have experience in AI or a proven track record of rapidly learning and mentoring others on emerging tech, you’ll fit right in. Equal Employment Opportunity Policy: Sparq is proud to offer equal employment opportunity without regard to age, color, disability, gender, gender identity, genetic information, marital status, military status, national origin, race, religion, sexual orientation, veteran status, or any other legally protected characteristic. We are committed to providing equal employment opportunities and believe in an inclusive workplace. If you require reasonable accommodations to participate in the job application or interview process, please let us know by contacting recruiting@teamsparq.com #LI-REMOTE Locations: Costa Rica; Mexico; Chile; Uruguay; Colombia