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Backend Javascript Developer job description
A Backend JavaScript Developer specializes in building server-side logic, databases, and APIs using JavaScript technologies like Node.js, ensuring seamless data flow between servers and users while optimizing application performance and security. This role is critical for creating scalable, efficient backend systems that power web applications and drive business functionality.
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What is a Backend Javascript Developer?
A Backend JavaScript Developer is a software engineer who focuses on server-side development using JavaScript and its ecosystems, primarily Node.js. They are responsible for designing, implementing, and maintaining the logic, databases, and infrastructure that enable web applications to function efficiently. Unlike frontend developers who work on user interfaces, backend developers handle data storage, security, server configuration, and API integrations, ensuring that applications perform reliably under various loads. Their expertise lies in writing clean, scalable code and working with technologies like Express.js, databases (e.g., MongoDB, PostgreSQL), and cloud services to build robust systems that support business operations.
What does a Backend Javascript Developer do?
Backend JavaScript Developers design, develop, and maintain server-side components of web applications. They write efficient code for APIs, manage databases, and ensure data integrity and security. Key responsibilities include building RESTful or GraphQL APIs, integrating third-party services, optimizing application performance, and implementing authentication systems. They collaborate with frontend developers to ensure seamless data exchange, troubleshoot server issues, and deploy applications using tools like Docker or cloud platforms. Additionally, they participate in code reviews, write tests, and monitor system health to support scalable and reliable backend infrastructure.
Job Overview
We are seeking a skilled Backend JavaScript Developer to design, implement, and maintain server-side logic and infrastructure for our web applications. The ideal candidate will be responsible for building scalable, high-performance backend systems using modern JavaScript technologies while ensuring code quality, system reliability, and seamless integration with front-end components.
1. Develop and maintain server-side application logic using Node.js and Express.js
2. Design and implement RESTful APIs and GraphQL endpoints for frontend consumption
3. Build and optimize database schemas and queries using MongoDB, PostgreSQL, or MySQL
4. Implement authentication and authorization mechanisms including JWT and OAuth
5. Write unit and integration tests using Jest, Mocha, or similar testing frameworks
6. Deploy and maintain applications on cloud platforms (AWS, Azure, or GCP)
7. Collaborate with frontend developers to integrate user-facing elements
8. Implement caching strategies using Redis or similar technologies
9. Monitor and optimize application performance and scalability
10. Implement CI/CD pipelines and containerization using Docker
1. 3+ years of professional backend JavaScript development experience
2. Proficiency in Node.js and Express.js framework
3. Strong experience with database systems (MongoDB, PostgreSQL, or MySQL)
4. Solid understanding of RESTful API design principles
5. Experience with version control systems (Git)
6. Knowledge of authentication and authorization mechanisms
7. Experience writing unit and integration tests
8. Understanding of asynchronous programming and event-driven architecture
9. Strong problem-solving and debugging skills
10. Bachelor's degree in Computer Science or equivalent experience
Preferred Qualifications
1. Experience with TypeScript in backend development
2. Knowledge of GraphQL implementation and schema design
3. Experience with cloud platforms (AWS, Azure, or GCP)
4. Familiarity with containerization technologies (Docker, Kubernetes)
5. Experience with message brokers (RabbitMQ, Kafka)
6. Knowledge of microservices architecture
7. Experience with serverless computing (AWS Lambda, Azure Functions)
8. Understanding of DevOps practices and CI/CD pipelines
9. Previous experience in agile development environments
10. Contributions to open-source JavaScript projects
Bonus Skills
1. Experience with Nest.js or other enterprise Node.js frameworks
2. Knowledge of performance optimization techniques and tools
3. Experience with real-time communication (WebSockets, Socket.io)
4. Familiarity with Elasticsearch or other search technologies
5. Understanding of security best practices and vulnerability prevention
6. Experience with monitoring and logging tools (Datadog, New Relic)
7. Knowledge of infrastructure as code (Terraform, CloudFormation)
8. Experience with GraphQL subscriptions and real-time data
9. Familiarity with NoSQL database optimization techniques
10. Previous mentorship experience or technical leadership roles
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