Position: Senior Fullstack Developer (BE focus) Hybrid

1, Job Requirement:

• Strong proficiency in Node.js and Express.js for building scalable and efficient server-side applications
• Expertise in JavaScript (ES6+) and TypeScript for writing clean, maintainable, and robust back-end code
• Solid understanding of RESTful API design principles and best practices
• Experience with Azure SQL for database management, query optimization, and performance tuning
• Knowledge of authentication and authorization mechanisms, such as JWT and Azure AD integration
• Familiarity with server-side caching techniques and performance optimization strategies
• Experience in integrating third-party APIs and services into web applications
• Excellent problem-solving and debugging skills, especially in the context of back-end development
• Strong communication and collaboration abilities to work effectively with cross-functional teams
• Familiarity with agile development methodologies and version control systems (e.g., Git)
• Passion for staying up-to-date with the latest trends and best practices in back-end development and web technologies

2, Job information:

1. Server-side Application Development

• Design and develop scalable and high-performance server-side applications using Node.js and Express.js.
• Implement efficient and maintainable back-end services to support the operational product.
• Write clean, modular, and well-documented code following best practices and coding standards.
• Optimize server-side performance, handle error scenarios, and implement appropriate logging and monitoring mechanisms.

2. RESTful API Design and Implementation

• Design and implement RESTful APIs that are scalable, lightweight, and easy to consume.
• Follow RESTful API design principles, such as resource-based URLs, proper HTTP methods, and stateless communication.
• Develop APIs that adhere to industry best practices and standards for security, performance, and documentation.
• Collaborate with front-end developers to define API contracts and ensure seamless integration between client-side and server-side components.

3. Database Management with Azure SQL

• Design and optimize database schemas for efficient data storage and retrieval using Azure SQL.
• Write complex queries, stored procedures, and optimize database performance to ensure optimal application performance.
• Implement database management best practices, such as indexing, normalization, and query optimization.
• Ensure data integrity, security, and backup/recovery mechanisms for the database.

4. Authentication and Authorization

• Implement secure authentication and authorization mechanisms, such as JSON Web Tokens (JWT), to protect back-end APIs and user data.
• Integrate with Azure Active Directory (Azure AD) for leveraging Microsoft's identity and access management services.
• Implement role-based access control (RBAC) and enforce granular permissions for user authorization.
• Follow security best practices and stay up-to-date with the latest authentication and authorization standards and protocols.

5. Performance Optimization and Caching

• Implement server-side caching techniques, such as in-memory caching or using distributed caches like Redis, to improve application performance.
• Optimize database queries, implement lazy loading and pagination techniques to ensure efficient data retrieval and minimize latency.
• Profile and analyze application performance, identify bottlenecks, and implement optimizations to enhance overall system performance.
• Collaborate with the development team to identify and resolve performance issues and ensure a smooth user experience.

6. Third-party API Integration

• Integrate the operational product with various third-party APIs and services, such as payment gateways, social media platforms, or cloud services.
• Understand and implement API documentation, authentication mechanisms, and error handling for seamless integration with external services.
• Ensure the security and reliability of third-party integrations, handle API rate limits, and implement appropriate caching and fallback mechanisms.
• Stay up-to-date with the latest changes and updates to third-party APIs and adapt the integration accordingly.

7. Collaboration and Communication

• Collaborate closely with front-end developers to ensure smooth integration between client-side and server-side components.
• Participate in design discussions, code reviews, and troubleshooting sessions to maintain a cohesive and well-integrated application architecture.
• Communicate effectively with team members, stakeholders, and clients to gather requirements, provide updates, and resolve technical challenges.
• Foster a culture of knowledge sharing, mentorship, and continuous improvement within the development team.

• Contract: Freelancer, trial 1 month full salary, 5 month contract
• Working mode: Onsite 1 month, then Hybrid( 2days on office)