We are seeking a senior professional to work in a critical corporate environment in the telecommunications sector, with strong experience in ETL, system integration, and evolutionary maintenance of OSS-oriented applications. This position targets hands-on professionals with analytical capability and proven technical seniority to perform maintenance, evolution, and development of new functionalities in applications responsible for processing, parsing, and integrating data originating from OSS platforms. We seek someone capable of technically understanding the application ecosystem, analyzing problems in a structured manner, and directly implementing solutions. Requirements: **Key Responsibilities** * Development and maintenance of ETL processes * Evolution and maintenance of applications integrated into the OSS ecosystem * Analysis, processing, and integration of data originating from telecommunications platforms * Development of new functionalities and enhancements to existing systems * Integration between databases, APIs, and corporate systems * SQL query tuning and optimization * Technical support for analysis and evolution of applications * Technical documentation and support to internal teams * Interaction with technical and business areas **Mandatory Requirements** * Experience in critical corporate environments, preferably in telecommunications * Knowledge and experience working in OSS environments * Strong experience with ETL and data integration * Practical experience with Informatica Cloud (IICS) * Advanced SQL and performance tuning * Experience with Oracle and MongoDB * Experience with API integration * Development and maintenance of applications using: Java, JavaScript, XML * Ability to perform evolutionary maintenance and technical analysis of legacy systems * Analytical, consultative, and hands-on profile * Excellent verbal and written communication skills * Ability to operate with technical autonomy **Preferred Qualifications** * Knowledge of React, Angular, and jQuery * Experience in parsing and handling telecommunications data * Experience with AI tools applied to analysis and maintenance of existing code * Experience with: Claude, Cursor AI, Windsurf, Kiro, GitHub Copilot * Experience in AI-assisted refactoring and modernization * Knowledge of process automation Benefits * Transportation allowance * Meal allowance: BRL 42.00 per working day * Health insurance * Dental insurance * Totalpass
João Silva
Indeed · HR
João Silva
Indeed · HR
