Senior Back End Engineer

As a Senior Back End Engineer at QiH, you will engage in designing, developing, and optimizing back-end systems using Node.js and Express.js. Your responsibilities include implementing RESTful APIs, collaborating with front-end developers for seamless integration, and ensuring system performance via monitoring tools like Datadog. Code quality is key; you'll also perform code reviews and contribute to our CI/CD pipeline while managing containerized environments with Docker.

To apply for the Senior Back End Engineer role at QiH, you should have extensive experience in Node.js and Express.js, along with solid knowledge of RESTful API design and microservices architecture. Proficiency in working with SQL databases like PostgreSQL or MySQL, and NoSQL databases like MongoDB, is crucial. Experience with CI/CD practices, automated testing, and deployment strategies, as well as familiarity with monitoring tools, will set you apart.

At QiH, you'll find a welcoming and energetic environment that celebrates teamwork and innovation. Our fast-paced culture allows Senior Back End Engineers to thrive as they collaborate with dedicated colleagues. We foster ongoing learning through our market-leading training programs while ensuring a work-life balance with our hybrid working model. Regular social events enhance team bonding and make for a lively workplace.

QiH offers an attractive benefits package for Senior Back End Engineers, including a competitive salary, quarterly bonuses, and private health care through Bupa. You’ll enjoy our recognition schemes, annual company conferences in exciting destinations, team lunches, and a well-stocked kitchen with free coffee and snacks to keep your energy up while you work!

Choosing a career as a Senior Back End Engineer at QiH means joining a forward-thinking company dedicated to technological innovation and employee development. At QiH, you can make a true impact by working on complex challenges and leading projects while being surrounded by a supportive team that values collaboration and personal growth.

When answering this question, focus on specific projects where you've used Node.js and Express.js. Discuss your role, the challenges you overcame, and any unique features you implemented in your applications. Highlight how this experience prepares you to contribute at QiH.

Discuss your knowledge of security practices such as input validation, authentication mechanisms, and data encryption. Provide examples of how you've implemented these measures in previous roles, emphasizing your proactive approach to safeguarding applications.

Explain your approach to designing RESTful APIs, including designing endpoints, using proper HTTP methods, and return status codes. Highlight examples of successful implementations that improved your project's functionality and efficiency.

Discuss the importance of code reviews for maintaining code quality and fostering team collaboration. Share your experience in providing constructive feedback and examples of how you've used code reviews to support junior developers and improve code consistency.

Talk about specific tools and practices you've employed in your CI/CD processes. Describe how automation led to faster deployments and fewer bugs, highlighting any personal contributions that have directly improved deployment efficiency.

Use the STAR method (Situation, Task, Action, Result) to articulate a challenging scenario, detailing the technical obstacles faced, how you devised a solution, and the positive outcomes resulting from your efforts.

Discuss the tools and techniques you utilize for performance monitoring and improvements. Examples can include using profiling tools, optimizing database queries, and caching strategies, emphasizing your proactive approach to maintaining high-performance services.

Discuss your experience with both SQL and NoSQL databases, explaining how you determine which to use in different situations. Highlight specific strategies for indexing, normalization, and query optimization to manage data effectively.

Mention the resources you utilize, such as online courses, tech blogs, conferences, or community involvement, that help you stay informed about the latest developments in back-end technology. Demonstrating a commitment to continuous learning is key.

Emphasize the critical role collaboration plays in successful project outcomes, discussing your experiences working with cross-functional teams, resolving conflicts, and how this collaboration led to innovation and improved product quality.