We are looking for a **Mid-Level .NET Developer** to work on the evolution and maintenance of internal systems at a solid and traditional financial institution. The professional will be responsible for developing robust and secure solutions using the .NET stack, supporting the team in new projects and maintaining existing systems, always focusing on quality, performance, and software engineering best practices. **Working hours:** Monday to Friday, business hours **Employment type:** CLT **Work model:** Hybrid – 3 remote days and 2 in-person days **Location:** Curitiba/PR **Inclusion and Diversity:** All individuals are welcome to apply, including people with disabilities. **Benefits** * Meal/food allowance: BRL 970.00 * Health and dental insurance * Profit-sharing (PLR) * Transportation voucher **Job Responsibilities** * Develop and maintain applications and services using .NET (C\#); * Identify and fix system failures, ensuring high availability; * Participate in architecture design and code versioning; * Implement technical solutions for business requirements; * Support the team in sprint planning and delivery scheduling; * Manage and optimize relational databases (SQL Server, PostgreSQL, Oracle, or MySQL); * Develop integrations via Web Services (SOAP) and REST APIs; * Apply development best practices, security, and unit testing; * Work collaboratively in an agile environment (Scrum/Kanban). **Education** Bachelor's degree in Computer Science, Software Engineering, Systems Analysis and Development, or related fields. **Technical Requirements** * Experience with **C\# / .NET Core and .NET Framework**; * Mastery of **SOLID principles** and **Object-Oriented Programming (OOP)**; * Knowledge of **relational databases** (SQL Server, PostgreSQL, Oracle, or MySQL); * Experience with **Docker** and **unit testing**; * Knowledge of **Domain\-Driven Design (DDD)**; * Proficiency with **Git** for version control; * Experience with **requirements analysis** and **database manipulation**; * Experience with **SOAP Web Services and REST API integration**. **Preferred Qualifications** * Experience with **cloud technologies** (AWS and Kubernetes); * Knowledge of **DevOps** and process automation; * Experience in **software security**; * Background in **software architecture**; * **Front\-end development** (ReactJS or Angular); * **Mobile development** (Flutter, Kotlin, or Swift). **Soft Skills** * Good communication and teamwork; * Analytical and problem-solving skills; * Organized, committed, and detail-oriented; * Proactive with technical responsibility; * Interest in continuously improving skills; * Collaborative spirit and results-focused. Minimum Education: Bachelor's Degree