Mid-level Fullstack Developer – React.js, Next.js, Nest.js
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Job Description
Fullstack Developer working on data integration and analytics platform with AI at Inicie. Building features and maintaining systems with a focus on performance, security, and stability.
Responsibilities:
- Develop and maintain fullstack features using React on the frontend and Nest.js on the backend.
- Create and consume RESTful APIs, ensuring performance, security and scalability, and implement and maintain real-time systems using WebSockets.
- Implement responsive, accessible interfaces following UX/UI best practices.
- Work with React component architecture, using hooks and modern state management.
- Maintain and evolve legacy systems, ensuring stability and performance.
- Optimize database queries and schema (Postgres/PostgreSQL).
- Implement and maintain automated tests (unit and integration).
- Actively participate in code reviews and share knowledge with the team.
- Document code, processes and technical decisions.
- Respond to bugs and incidents quickly and efficiently.
Requirements:
- Strong proficiency in JavaScript/ES6+, TypeScript, HTML5 and CSS3.
- Experience with state management in React (Context API, Redux, Zustand or similar).
- Knowledge of software architecture and ability to contribute to technical decisions.
- Experience with ORMs, migrations, seeders and defining relationships.
- Experience creating and consuming RESTful APIs.
- Knowledge of authentication and authorization (JWT, OAuth, Google Login).
- Experience with relational databases (MySQL/PostgreSQL) and query optimization.
- Familiarity with automated testing (Vitest, Jest, React Testing Library).
- Experience with Git and collaborative workflows (Git Flow, pull requests, code review).
- Ability to work on maintenance, bug fixes and evolution of existing systems.
- Collaborative, proactive and resilient mindset.
Benefits:
- Remote
- Contract type: Contractor (PJ - B2B)
- Working hours: Monday to Friday, 9:00 AM to 6:00 PM
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