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Imagine you are tasked with making a flight ticket reservation website. The first page of the website should show a list of available flights from different flight providers aka airlines through receiving the data from their web APIs. Unfortunately, some flight providers might take considerable time to provide a list of available flights or cannot return flights immediately. In this situation, making our website’s users wait for a long period to see the available flights might hurt their user experience. This tutorial illustrates how you can design the available flights page with the mentioned constraints.

If you surf the Internet, you probably find many pages describing a senior engineer. However, unlike some people who think a senior engineer is someone who can write the most complex algorithms with a geeky face, in this article, I describe the characteristics of a senior engineer in my own way.

In the world of software development, there's an ideal realm of best practices and a pragmatic one driven by project needs. The decision to write tests depends on factors like project lifespan and relevance, as insisting on unnecessary tests can delay delivery and harm a developer's credibility. While individual test-writing enhances personal work, enforcing it across a project may not significantly boost overall quality. A skilled developer strikes a balance between business needs and technical excellence, understanding that rigid adherence to top standards isn't always necessary.