Fullstack Developer, C#/React

Role Overview

• Define and evolve scalable and resilient system architectures, ensuring adherence to modern patterns (Clean Architecture, DDD, microservices, event-driven).
• Develop solutions using C# (.NET / .NET Core) and React (preferably with TypeScript), ensuring high technical quality.
• Provide technical leadership for the development of services and APIs, ensuring standardization (REST, versioning, API governance) and integration with internal and external systems.
• Structure and guide proper data modeling (SQL and NoSQL), ensuring performance, consistency and scalability.
• Be responsible for engineering quality, ensuring:
• Automated tests (unit, integration and E2E)
• Code review and design review
• Application of best practices (Clean Code, SOLID)
• Ensure standards for security, observability and performance, including:
• AuthN/AuthZ (OAuth2, OIDC, JWT)
• OWASP Top 10
• Structured logs, metrics and tracing
• Define and evolve DevOps and continuous engineering practices:
• CI/CD
• Containerization (Docker) and orchestration
• Deployment strategies (blue/green, canary release)
• Lead and disseminate technical best practices, serving as a reference for the team:
• Technical mentorship
• Influence on architectural decisions
• Raising the squad's technical level
• Work closely with Product, QA and UX, contributing to discovery and continuous delivery in agile models (Scrum/Kanban).
• Apply and promote the use of Artificial Intelligence in development, including:
• Advanced use of copilots and agents (Cursor, VS Code, Claude)
• Development of assistive solutions for engineering

Requirements

• Proven experience in backend development with C# (.NET) and frontend development with React.
• Experience in architectural definition and working with distributed systems.
• Mastery of REST APIs, versioning and integration with external services.
• Practical experience with .NET Core, dependency injection, middleware and HTTP pipelines.
• Strong experience with SQL (advanced modeling and performance) and NoSQL.
• Experience with Docker and running applications in different environments.
• Solid knowledge of CI/CD, version control (Git) and pipeline automation.
• Experience with scalable architectures, messaging (RabbitMQ, Kafka) and caching.
• Experience with observability and system reliability.
• Practical experience applying AI to software development.
• Familiarity with modern IDEs and developer agents (Cursor, Copilot, Claude or similar).
• Bachelor's degree completed or in progress in a technology-related area.

Tech Stack

• Docker
• Kafka
• NoSQL
• RabbitMQ
• React
• SQL
• TypeScript
• .NET

Benefits

• Meal allowance (Vale Refeição)
• Food allowance (Vale Alimentação)
• Bradesco medical plan
• Bradesco dental plan
• Wellhub and Totalpass
• Transportation allowance (Vale Transporte)
• Childcare assistance (Auxílio Creche)
• Profit Sharing (PLR)
• Life insurance
• Private pension plan
• Day off on your birthday
• Extended paternity leave
• Partnership with Creditas