Fullstack Developer (Freelancer Onsite)

• Develop, implement, and maintain fullstack web applications, covering both frontend and backend.

• Design and build modern, high-performance user interfaces with ReactJS, HTML, CSS, JavaScript.

• Develop and optimize APIs/backend services using Node.js/Express (or equivalent frameworks).

• Design databases and write optimized queries for SQL/NoSQL (MySQL, PostgreSQL, MongoDB, etc.).

• Integrate systems with third-party services.

• Participate in code reviews, architectural design, and maintain high code quality standards.

• Refactor and optimize performance across both frontend and backend.

• Write tests (unit tests, integration tests) and work closely with QA processes to ensure product quality.

• Monitor application performance, identify issues, and resolve both usability and system problems.

• Collaborate closely with UX/UI, designers, and tech leads to deliver the best user experience.

Yêu cầu công việc

• At least 2 years of experience in web development, including 1+ year as a fullstack developer.

• Proficiency in ReactJS, JavaScript/TypeScript, HTML, CSS.

• Hands-on experience with backend development using Node.js/Express or similar frameworks.

• Strong knowledge of databases (SQL/NoSQL).

• Solid understanding of RESTful APIs, WebSocket, and microservices architecture is a plus.

• Ability to write scalable, maintainable, clean, and well-documented code.

• Experience with Git and CI/CD pipelines.

• Experience with cloud platforms (AWS, GCP, Azure) is a strong advantage.

• Strong analytical, problem-solving, and logical thinking skills.