Django provides several built-in features that simplify web development and help developers build secure, maintainable applications. Understanding Django’s architecture, models, views, URLs, middleware and database handling is important for technical interviews. Developers only write and deploy code, while the cloud provider automatically manages the servers, scaling, and infrastructure.
Interviewers at this tier want to know whether you can explain Playwright’s architecture, set up a project, write a working test, and articulate why auto-waiting matters. It can improve execution speed and resource efficiency, especially in CI/CD environments. Assertions are essential in Selenium automation because they act as checkpoints to validate application behavior and control test execution results. TestNG is a testing framework used with Selenium to provide better structure, control, and management of test execution. Selenium WebDriver provides language bindings and APIs that enable developers to automate and control web browsers. They are testing your collaboration skills just as much as your technical knowledge.
Paired with optimization techniques—such as minimizing global variable lookups and leveraging C-based built-ins—bytecode analysis empowers senior engineers to write highly efficient applications. In hot code, keep methods small to stay inlineable. Volatile is essential.
XPath axes are used to search for the multiple nodes in the XML document from the context (current) node. Techniques such as explicit waits, which pause the execution until a specific condition is met, are crucial. Handling dynamic web elements in Selenium involves several methods to ensure robust and reliable test automation. It starts with a single forward slash(/) as shown below. A hybrid framework in test automation is a sophisticated blend of multiple frameworks, combining the strengths of data-driven, keyword-driven, and sometimes modular frameworks.

• Use iMocha’s Coding-in-the-blanks, patented tool to create a holistic experience for your candidates and save time!
• Employers are interested in understanding your perspective on what makes a senior backend developer successful, as it provides insight into your own professional values and expectations.
• In this article, we have seen commonly asked interview questions for a python developer.

Data migration is an essential task for any Senior Backend Developer, as it ensures seamless transitions between systems or databases and minimizes the risk of data loss. My work on the CI/CD pipeline significantly improved the development process by automating repetitive tasks, reducing human errors, and ensuring that new features and bug fixes were deployed rapidly and efficiently. In my previous role at XYZ Company, I was responsible for setting up and maintaining the CI/CD pipeline using Jenkins. Interviewers want to know if you have experience implementing and managing https://uvik.io/ these pipelines and if you can contribute to minimizing errors, speeding up deployment, and reducing downtime. To tackle this issue, I worked with the frontend team to implement pagination and lazy-loading techniques, which significantly improved the overall performance of the application.

This series of 5 courses takes you through the fundamentals of Python syntax, algorithms, data structures, and problem-solving so you can ace your next interview—and it’s free to get started. At this early stage in your coding journey, gaining more practice proves to be the most advantageous strategy. Recognize that problems often have multiple viable solutions, and experimenting with different approaches can be beneficial. If you opt for practicing in a feature-rich IDE, consider refraining from using advanced features like variable watching and instead focus on debugging using print statements. Those who intentionally practice in environments resembling interviews tend to feel more at ease. This guide will help you identify key areas for improvement, such as data structures, object-oriented programming, or library specific knowledge.
It helps maintain performance, high availability, and cost optimization by scaling instances in or out automatically. An EC2 instance is a virtual server in AWS that provides scalable computing power with full control over the operating system and installed software. It helps businesses and developers build applications quickly and efficiently without managing physical hardware. This article has a list of common questions they might ask you during the interview and provides answers. This blog has helped guide you through an entire practice of Python coding questions, from beginner to advanced problems, to help you develop the core skills needed in technical interviews and in programming in the real world.