Fullstack Developer specializing in Node.js, TypeScript, and NestJS with hybrid working in Contagem. Responsibilities include developing APIs and integrating frontend-backend systems.
Responsibilities
Develop and maintain RESTful APIs using Node.js, Express.js and TypeScript, preferably with NestJS.
Build and evolve modern frontend interfaces using JavaScript/TypeScript with frameworks such as React, Angular or Vue.js, ensuring a great user experience and efficient API integration.
Implement authentication and authorization using JWT, with experience in OAuth 2.0 and OpenID Connect; apply encryption and security best practices using bcrypt, Argon2, the Node.js crypto module and hashing algorithms (e.g., SHA).
Integrate and model data with relational databases (PostgreSQL, MySQL, SQL Server) and NoSQL databases.
Ensure API documentation, validation and testing using tools such as Postman, Insomnia and frontend testing libraries.
Work on frontend–backend integration, managing API contracts, versioning and compatibility.
Actively participate in technical meetings, collaborating with the team on planning, development and implementation of fullstack solutions.
Version source code, perform code reviews and collaborate within development workflows using Git.
Use project boards for task management and tracking deliveries.
Apply Artificial Intelligence tools in daily work to increase productivity, support development and improve processes.
Requirements
Proven experience in fullstack development, with strong expertise in Node.js, TypeScript and NestJS.
Experience with Express, Fastify or Restify, applying best practices to build RESTful APIs.
Frontend development experience with React, Angular or Vue.js, including consuming REST APIs and state management.
Experience writing unit tests, integration tests, end-to-end (E2E) tests and smoke tests for both backend and frontend.
Experience with relational databases, especially PostgreSQL, MySQL and SQL Server, and familiarity with NoSQL databases.
Familiarity with security and cryptography, including JWT, bcrypt and the Node.js crypto module.
Experience with Git, including workflows and practices such as Git Flow, SemVer, Semantic Release and Conventional Commits.
Ability to propose and evolve fullstack architectures with consideration for scalability, security, maintainability and user experience.
Experience with monitoring, logging and troubleshooting in production environments.
Knowledge of API and frontend performance, including caching, rate limiting and concurrency control.
Basic knowledge of project management tools such as Azure Boards.
Good communication skills and ability to work collaboratively using tools like Microsoft Teams.
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