Client: Our client is a leading healthcare organization in Latin America, dedicated to improving patient outcomes through innovative digital solutions and high\-quality software systems. * Project overview: The engineering team is supporting ongoing digital transformation initiatives in the healthcare domain, developing secure, scalable, and mission\-critical applications. The Senior .NET Developer will join an active project for a 3\-month engagement (December–February), contributing to the design, development, and quality assurance of core software components. * The environment follows Agile methodologies and uses a modern stack including .NET 5\+, Angular 12\+, C\#, TypeScript, and automated testing practices. * Position overview: We are seeking a Senior .NET Developer with at least 6 years of experience in software development. The ideal candidate is a hands\-on engineer capable of leading the full development lifecycle: technical design, coding, unit testing, documentation, and support during delivery. * This role requires strong fundamentals in object\-oriented programming, expertise in C\# and .NET, and complementary front\-end experience with Angular or TypeScript. * Responsibilities: Design, develop, and maintain backend services and APIs using .NET 5\+ and C\#. * Collaborate on front\-end components using Angular 12\+ and TypeScript when required. * Lead the full development lifecycle: technical analysis, design, coding, testing, and documentation. * Implement and execute unit tests and contribute to integration testing efforts. * Ensure code quality, maintainability, and alignment with architectural guidelines. * Participate in Agile ceremonies (daily stand\-ups, sprint planning, reviews). * Collaborate closely with product owners, QA teams, and other developers to ensure timely delivery. * Troubleshoot, debug, and optimize existing code and system components. * 6\+ years of professional software development experience. * Advanced proficiency in C\#, .NET 5\+ and object\-oriented programming. * Experience with Angular 12\+ and TypeScript (or willingness to work with front\-end components). * Strong skills in designing and executing technical and functional tests. * Familiarity with Agile methodologies (Scrum / Kanban). * Solid understanding of clean code principles, design patterns, and modern engineering practices. * Ability to work independently and manage tasks with minimal supervision. * Technical English for reading documentation and tools. * Nice to have: Experience in the healthcare sector or regulated environments. * Knowledge of cloud services (Azure, AWS, or GCP). * Experience with CI/CD pipelines and DevOps practices. * Strong analytical and problem\-solving skills. * Clear communication and teamwork. * Ownership, autonomy, and ability to deliver under time\-boxed engagements. * Attention to quality, performance, and maintainability.