Back-End Node.js Developer

This job suits a Junior to Mid-level Backend Node.js Developer with 2-5 years of experience, preferably with startup background. Candidates should be skilled in Node.js (JavaScript/TypeScript), MongoDB, AWS, and familiar with Git and CI/CD tools like Bitbucket pipelines. They must be comfortable building APIs and backend services in a fast-paced remote environment.

1. Describe your experience with backend development using Node.js.
   I have 2-5 years of experience building scalable and maintainable backend services and APIs with Node.js using JavaScript and TypeScript.

2. What is your experience working with document databases such as MongoDB?
   I have hands-on experience designing schemas, performing CRUD operations, and optimizing queries in MongoDB for flexible data storage.

3. How do you use AWS services in your backend projects?
   I am proficient with AWS services like EC2, Lambda, S3, and DynamoDB, leveraging them to deploy, scale, and manage cloud applications efficiently.

4. Explain your familiarity with version control and CI/CD pipelines.
   I regularly use Git for version control and have experience setting up CI/CD pipelines using Bitbucket Pipelines to automate testing, builds, and deployments.

5. What challenges have you faced working in startup environments and how did you handle them?
   In startups, I adapted quickly to evolving requirements, prioritized delivering MVP features rapidly, and maintained high code quality despite resource constraints.

6. How do you ensure your APIs are secure and performant?
   I implement authentication, authorization, input validation, rate limiting, and optimize endpoints with caching and efficient database queries.

7. How do you handle asynchronous operations in Node.js?
   I use async/await patterns and Promise-based libraries to write clean, non-blocking code for I/O-bound operations.

8. Describe your approach to testing backend services.
   I write unit and integration tests using Jest or Mocha, mock dependencies, and ensure coverage for critical business logic and API endpoints.

9. How do you collaborate with frontend developers in API design?
   I actively communicate with frontend teams to understand data requirements and design RESTful or GraphQL APIs that serve their needs effectively.

10. What are your best practices for maintaining code quality in a fast-paced environment?
    I use code reviews, consistent style guides, automated linting, and comprehensive tests to ensure maintainability and reliability.

Elastify, a fast-growing startup, is hiring a remote Back-End Node.js Developer based in Canada. Ideal candidates have 2-5 years of experience with Node.js (JavaScript or TypeScript), MongoDB, and AWS. You'll work on backend and API development while using Git and CI/CD tools like Bitbucket pipelines. Startup experience is required, offering a dynamic and innovative environment.