[Job-27788] Mid/Senior Developer Fullstack (.NET & React)

Somos especialistas em

transformação tecnológica , unindo expertise humana à IA para criar soluções tech escaláveis. Com mais de 8,000 CI&Ters ao redor do mundo, já formamos parcerias com mais de 1,000 clientes durante nossos 30 anos de história. Inteligência Artificial é nossa realidade. Importante : se você reside na Região Metropolitana de Campinas, sua presença nos escritórios da cidade será obrigatória, conforme a política de frequencia vigente. Project:

Develop and maintain receipts management platform, automating renewable energy certificate processing across 40+ international registries for ION Carbon Zero platform integration. Required Technical Skills: ● 5+ years of full-stack development experience with .NET and React ● Backend Development: ● C#, .NET Core/.NET 6+, Core● RESTful API design and development● Microservices architecture patterns● Entity Framework Core or Dapper● LINQ and async/await patterns● Dependency injection and IoC containers ● Front-end Development: ● React 18+, React Hooks, Context API● TypeScript, JavaScript (ES6+)● Modern CSS, CSS-in-JS, or CSS modules● State management (Redux, Zustand, or similar)● Responsive web design principles● Database:● Azure SQL Server, T-SQL● Cosmos DB (NoSQL)● Database design, optimization, and indexing● Complex queries and stored procedures● Cloud & DevOps:● Microsoft Azure (App Services, Function Apps, Azure Storage, Key Vault)● CI/CD pipelines (Azure Pipelines, GitHub Actions)● Git/GitHub for source control● Docker containerization (preferred)● Testing:● Unit testing (xUnit, NUnit, MSTest)● Integration testing● Front-end testing (Jest, React Testing Library) Preferred Qualifications: ● Experience in financial services, commodity trading, or energy/climate techsectors● Knowledge of Azure Logic Apps and Function Apps for middleware integration● Familiarity with API integration patterns and third-party system connectivity● Experience with RPA concepts or handling non-API data sources● Understanding of data governance and security compliance (SOC2, GDPR)● Experience with AI-assisted development tools (Cursor, GitHub Copilot, Claude)● Knowledge of trading platforms or registry systems● Exposure to ION platforms or similar enterprise trading systemsResponsibilities:● Develop and maintain Callisto platform UI components using React/TypeScript● Build and refactor C#/.NET Core backend APIs and microservices● Implement receipt processing workflows for API-based and non-API registries● Design and optimize database schemas in Azure SQL and Cosmos DB● Integrate with ION Carbon Zero platform APIs for receipt/parcel management● Connect to operational database and data warehouse for trade datasynchronization● Build middleware integrations using Azure Logic Apps and Function Apps● Implement secure API authentication and authorization patterns● Participate in knowledge transfer sessions with transitioning development team● Write comprehensive unit and integration tests with high code coverage● Optimize application performance and scalability for high-volume processing● Follow SDLC best practices, code review standards, and documentationrequirements● Collaborate with trade operations stakeholders to understand businessrequirements● Support production deployments and troubleshoot issues as needed Nossos benefícios: - Plano de saúde e odontológico;- Vale alimentação e refeição;- Auxílio-creche;- Licença parental estendida;- Parceria com academias e profissionais de saúde e bem-estar via Wellhub (Gympass) TotalPass;- Participação nos Lucros e Resultados (PLR);- Seguro de Vida;- Plataforma de aprendizagem contínua (CI&T University);- Clube de descontos;- Plataforma online gratuita dedicada à promoção da saúde física, mental e bem-estar;- Curso gestante e parentalidade responsável;- Parceria com plataformas de cursos online;- Plataforma para aprendizagem de idiomas;- E muitos outros