Job Summary: You will participate in the maintenance and evolution of .NET applications within a complex, large-scale environment at a public institution, with 70% focused on development and evolution. Key Highlights: 1. Stable project within a public institution with continuous technological evolution. 2. Complex technological environment, migrating to modern architectures. 3. Opportunity for technical growth in architecture and backend development. You will participate in the maintenance and evolution of corporate applications within a major public institution. This is a complex environment comprising over 200 interconnected applications, built upon a proprietary middleware-style architecture developed using .NET technology (both legacy and current versions). Development follows patterns such as MVC, Repository, microservices, and REST APIs, within a modular and scalable environment. Work Organization * 30% maintenance * 70% evolution and development Stable environment, with incident prioritization based on business impact. Project Evolution In the medium term, the project will evolve toward a decoupled architecture based on Angular and microservices, incorporating more modern technologies and a long-term technology stack. **Work Mode:** Hybrid, with greater emphasis on on-site work Responsibilities * Maintenance and evolution of .NET applications * Analysis and resolution of technical incidents * Design of system integrations * Liaison with business stakeholders to gather requirements * Development of new features * Participation in quality improvements (testing, refactoring, DevOps, agile methodologies) Requirements * Minimum 5 years of experience in .NET environments * University degree in Computer Engineering or related field (mandatory) * Experience with testing, refactoring, DevOps, and agile methodologies Benefits * Stable project within a public institution * Participation in a complex, large-scale technological environment * Long-term project with continuous technological evolution * Work with modern technologies and migration to modern architectures * Collaborative environment with both technical and business teams * Opportunity for technical growth in architecture and backend development Join Seidor Gesein as a .NET Developer! Be part of an innovative technology team and advance your career in a dynamic and collaborative environment. We look forward to welcoming you!