At Scaler, a Senior Back-end Engineer is responsible for implementing end-to-end solutions by collaborating with various teams, designing and optimizing back-end systems, and developing RESTful APIs for seamless interactions. You'll also be focused on enhancing code quality through best practices and troubleshooting software defects effectively.

To qualify for the Senior Back-end Engineer role at Scaler, you should possess a Bachelor’s degree in Computer Science or a related field, along with proven experience in software engineering. Proficiency in PHP, SQL, and exposure to frameworks like Laravel are essential, as well as a solid grasp of database management and containerized applications.

As a Senior Back-end Engineer at Scaler, familiarity with programming languages like PHP, Python, and JavaScript is crucial. You should also have experience with SQL databases such as PostgreSQL and MySQL, and be comfortable using tools and frameworks such as Laravel, Docker, and AWS among others.

Scaler is committed to the personal and professional growth of its employees. As a Senior Back-end Engineer, you'll benefit from an annual personal development budget, allowing you to pursue courses, certifications, or conferences that can advance your skills and career.

The work culture at Scaler promotes collaboration, innovation, and excellence. As a Senior Back-end Engineer, you'll work within a team that is supportive and enthusiastic about the company's mission, creating a positive environment where creativity and engagement thrive.

In your response, detail specific projects where you've used PHP to build scalable applications. Highlight any frameworks like Laravel that you have utilized and how your expertise will help in optimizing the back-end systems at Scaler.

Explain your approach to optimizing performance, including techniques like load balancing, caching strategies, and identifying bottlenecks. Provide examples of how you've implemented these strategies successfully in past roles.

Discuss your approach to code reviews, emphasizing the importance of cleanliness, readability, and adherence to coding standards. Mention how constructive feedback and team collaboration can lead to improved software quality.

Describe specific instances where you've designed and implemented RESTful APIs, focusing on their role in communication between the front-end and back-end systems. Talk about any challenges faced and how you overcame them.

Share your methods for keeping up-to-date, such as following industry blogs, participating in forums, or enrolling in courses. Highlight how this commitment to learning enhances your work as a Senior Back-end Engineer.

Discuss your experience with SQL databases and any techniques you use to write optimized queries. Provide examples of how you’ve improved database performance in past projects.

Provide a detailed account of a specific bug, including the steps taken to diagnose the issue, the impact on the project, and the final resolution. Emphasize your problem-solving skills and ability to work under pressure.

Talk about the importance of clear communication and how you adapt your explanations to suit different audiences. Emphasize your ability to facilitate productive discussions and ensure everyone is aligned on project goals.

Reflect on how your technical expertise directly impacts the company's objectives, especially at a place like Scaler that’s focused on sustainability and innovation. Discuss how your work can enhance user experience and add value to customers.

Describe your experiences with containerization tools such as Docker, discussing how they facilitate development and deployment. Mention any projects where containerization improved efficiency and reduced deployment times.