Senior Backend Engineer - Node.JS

As a Senior Backend Engineer at our company, your primary responsibilities will include designing, developing, and maintaining scalable Node.js applications and services, implementing authentication mechanisms such as OAuth 2.0 and JWT, and utilizing Cloudflare Workers for serverless functions. You will also optimize application performance and collaborate with cross-functional teams to deliver quality products.

To apply for the Senior Backend Engineer position, you should possess a Bachelor’s degree in Computer Science or Engineering, proven experience in Node.js development, and a strong understanding of microservices architecture. Knowledge of authentication frameworks like OAuth 2.0 and JWT is essential, along with familiarity with serverless platforms, databases, and version control systems like Git.

A Senior Backend Engineer should be well-versed in JavaScript and Node.js development. Familiarity with Cloudflare Workers, Docker, container orchestration (e.g., Kubernetes), SQL and NoSQL database management, CI/CD pipelines, and DevOps practices is highly beneficial for success in this role.

In the role of Senior Backend Engineer, you'll collaborate closely with front-end developers, product managers, and other stakeholders. Effective communication skills are crucial, as you'll need to work together to deliver high-quality products while sharing insights and resolving any technical challenges that arise.

At our company, a Senior Backend Engineer has various career development opportunities, including pathways to lead engineering initiatives, mentoring junior developers, and specializing in areas like cloud technologies or advanced architecture. We encourage continuous learning and staying updated with industry trends, which can enhance your career growth.

In your answer, focus on specific projects or applications you've developed using Node.js, highlighting your understanding of its event-driven architecture and asynchronous programming. Share how you’ve utilized its features to solve real-world problems, and express your enthusiasm for its capabilities in building scalable server-side applications.

Discuss the importance of keeping microservices independent, lightweight, and properly versioned. Share your approaches to monitoring performance, ensuring fault tolerance, and minimizing latency. Mention tools and practices you use for service orchestration and API management.

Explain how you utilize OAuth 2.0 for authorization and JWT for securely transmitting information as a JSON object between parties. Provide examples of scenarios in which you've implemented these standards, detailing any libraries you’ve used and the overall impact on security and user experience.

Share a specific example of a challenging issue you encountered such as a performance bottleneck or security vulnerability. Detail your thought process in diagnosing the problem, the steps you took to resolve it, and the results or improvements that followed.

Discuss the practices you follow for writing readable, maintainable code such as adherence to coding standards, regular code reviews, and automated testing. Explain how you utilize documentation and comments to make the codebase easier for others to understand.

Emphasize the importance of communication in a collaborative team environment. Share examples of how you effectively communicate technical concepts to non-technical stakeholders and how you work together with team members on shared goals or projects.

Share your understanding of serverless architecture, its advantages, and your experiences in deploying serverless functions. Discuss how you’ve used Cloudflare Workers for specific tasks and the impact they had on performance and scalability.

Explain your systematic approach to identifying and resolving issues in the code. Discuss tools and methodologies you utilize for effective debugging, including logging, monitoring, and testing.

Discuss your commitment to continuous learning and staying informed. Mention resources such as blogs, forums, webinars, or courses you follow, and how you apply new knowledge to your work.

Customize your answer to reflect your knowledge about the company. Highlight aspects such as the culture, projects, technology stack, or values that resonate with you, and explain how your skills and aspirations align with their goals.