Description: Requirements: * Intermediate English level (technical documentation) * Knowledge of design patterns, refactoring, unit testing, and TDD * Experience with code quality analysis tools (Sonar) * Knowledge of Java and C programming languages * Knowledge of Python programming language * Knowledge of Jira tool * Knowledge of Git * Knowledge of Linux operating system Desirable: * Knowledge of mathematics and statistics * Ability to learn independently * Knowledge of Rust programming language * Knowledge of Vue framework * Knowledge of JavaScript The professional will work in the After\-Sales area, performing corrective maintenance on systems developed and deployed by ATECH for the Brazilian Airspace Control System (SISCEAB). They will maintain constant communication with development teams and teams stationed at client sites. Activities: * Perform statistical data analysis using specialized software to demonstrate compliance with performance requirements; * Investigate and fix bugs in operational systems; * Understand project-specified requirements; * Develop software in Java, C, or Python; * Conduct integration testing; 2512240202491825707