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Sr. Software Engineer, C#/.NET

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Job ID 315637 Date posted 10/13/2025 Location : São Paulo, Brazil Category  DIGITAL TECHNOLOGY AND DATA (DT&D) Job Status  Salaried Full Time

Job Purpose and Impact

  • The Senior Professional, Software Engineering job designs, develops and maintains software applications and systems. With minimal supervision, this job collaborates with cross functional teams to define, design and implement new software features to meet user needs and business goals, and upgrade existing software to improve performance and functionality through writing clean, efficient and scalable code and troubleshooting and debugging complex issues. This job also participates in code reviews to maintain high code quality and share knowledge with software engineering team members.

Key Accountabilities

  • SOFTWARE DEVELOPMENT: Designs and develops high quality software solutions by writing clean, maintainable and efficient codes.
  • AUTOMATION: Leads the application of internal software deployment platform, methodologies and tools to automate the deployment process, ensuring smooth and reliable releases.
  • COLLABORATION: Partners with cross functional team of product managers, designers and different engineers to gather complex requirements and deliver solutions that meet business needs.
  • TESTING & DEBUGGING: Writes and maintains complex unit tests and integration tests, and performs debugging to maintain the quality and performance of the software.
  • CONTINUOUS IMPROVEMENT: Suggests options for improving the software development and deployment processes, and implements the approved standards to improve efficiency and reliability.
  • DOCUMENTATION: Builds and maintains comprehensive documentation for complex software applications, deployment processes and system configurations.
  • TECHNICAL SUPPORT: Provides technical support and troubleshooting for complex issues with deployed applications to ensure minimal downtime and fast resolution.

Qualifications

  • Strong experience with C# and .NET Framework/.NET Core.
  • Solid understanding of object-oriented programming.
  • Experience with unit testing and mocking frameworks (e.g., xUnit, NUnit, Moq).
  • Familiarity with design patterns (e.g., Repository, Factory, Strategy).
  • Experience with PostgreSQL and SQL Server: writing queries, stored procedures, and performance tuning.
  • Knowledge of RESTful APIs and message-based systems.
  • Experience with relational databases and data access libraries (e.g., Entity Framework, Dapper).
  • Proficient in Git: branching, merging, pull requests, and version control workflows.
  • Fluent English level

Preferred:

  • Basic familiarity with Azure services (e.g., Azure Storage, Service Bus).
  • Exposure to clean architecture, DDD, or layered architecture.
  • Experience with CI/CD pipelines (Azure DevOps).
  • Familiarity with logging and monitoring tools (e.g., Serilog, Application Insights).
  • Understanding of asynchronous programming in . .NET.
  • Knowledge of ReactJS frontend using Material / Micro UI.
  • Familiarity with Python and/or R.
  • Familiarity with Angular
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