We are expanding the team! Azertium IT is looking for you! We urgently need to incorporate a Senior Java \& .NET Developer profile with at least 4 years of experience in the role and in the IT sector, to become part of our team facing great challenges, with strong career trajectory and professional growth opportunities. Responsibilities: * Development and maintenance of applications in **C\# with ASP.NET** (WebForms, MVC) and **.NET Core / .NET 8** * Development using **Java (Spring Boot, JPA)** * Working with **PostgreSQL**, entity–relationship design * Implementation and integration via **SOAP**, **REST API**, and **WebHooks** * Design and development using **Microservices**, **MVC**, JSON architectures * Use of tools such as **Git**, **Jenkins**, **Docker**, ORMs * Participation in **Google Cloud** environments * Collaboration within AGILE teams (Scrum or others) * Requirements: * More than 4 years of experience in .NET and Java development * Solid experience with ASP.NET, .NET Core, Spring Boot, JPA * Strong proficiency with PostgreSQL * Experience in integrations (SOAP, REST, WebHooks) * Proficiency with DevOps tools (Git, Jenkins, Docker) * Advanced English We offer: * + Indefinite contract with Azertium IT. + 100% remote work. + Stable, long-term project. + Professional training and development.