Job Summary: Develop, maintain, and enhance back-end applications in .NET (C#), optimize queries, and ensure adherence to best development practices. Key Highlights: 1. Work for a Portuguese multinational with global presence 2. Focus on innovation and digital transformation 3. Development with .NET (C#), Oracle, and PostgreSQL #### **About the Senior Back-End Developer Role** **Join a living ecosystem where the future of business is created and experienced every day. Be part of this transformation!** At LUZA Group, passion, perseverance, and the drive to surpass limits define our path to success. Founded in 2006, we are a Portuguese multinational with over 1\.200 talented professionals and a substantial volume of business. With presence in strategic markets such as Portugal, Spain, Morocco, Brazil, Mexico, the United States, and China, we deliver innovative solutions in engineering, IT, design, consulting, Industry 4\.0, training, and recruitment. Everything we do is powered by the talent of our people. **This is a moment of growth and opportunity. The future belongs to visionary minds. Join us!** **Responsibilities and Tasks** * Develop, maintain, and enhance back-end applications in **.NET (C\#)** * Create and optimize queries, stored procedures, and data modeling in **Oracle and PostgreSQL** * Develop and maintain RESTful APIs * Analyze and improve application and database performance * Ensure adherence to best development practices (Clean Code, SOLID, automated testing) * Participate in code reviews and contribute to technical standards * Collaborate with business areas and, when required, with international teams **Mandatory Requirements** * Solid experience as a Senior Back-End Developer (minimum 5 years) * Strong experience with **.NET (C\#)** * Proficiency in **SQL**, with experience in **Oracle and PostgreSQL** * Experience with REST APIs * Familiarity with Git version control * Experience with agile methodologies (Scrum/Kanban) * Knowledge of data modeling and performance optimization **Preferred Qualifications** ---------------- + Experience with microservices architecture + Knowledge of messaging systems + Experience in medium- to large-scale corporate environments + Experience with cloud platforms (Azure, AWS, or GCP)**Behavioral Profile** ------------------------- We seek a professional who is: + Communicative and collaborative + Curious and committed to continuous learning + Inquisitive, with constructive critical thinking + Committed to deadlines and quality + Proactive and with an ownership mindset ; Work model: Hybrid \- Contagem\-MG