What kind of tools and applications do you use to make your development workflow smoother?

What database/architecture does Algolia use to power its high performance search engine?

I thought to do some experiment with Algolia and I must say I am impressed by its speed. I would love to know what architecture/solution they use to power their search engine. A basic high level overview will be great. I am sure I am not

What are some of the benefits of Memcached compared to Redis?

Is Memcached more optimised to be a cache store? I have the idea that Redis can be used as both Message Queue and Cache Store, but memcached is more of a caching layer. What do you think?

How do you answer questions like "Why did you choose X over Y" where X and Y are two competing technologies and you simply prefer X to Y?

I always prefer technologies I am familiar with for serious projects. Many times I get questions like - Why X? Why not Y? Many times the reason is I am more comfortable with X than Y. How do you explain this to your colleagues, friends, advisors e

Are backups necessary in MongoDB if I am using replica sets?

I know replica sets take care of high availability. But how do you take backups while using replica sets? What's the best strategy for this?

Which terminal editor do you use and why?

I use nano because of its simplicity. I find vim confusing and hard to use. What do you guys use?

How important is SSL for a web app? Should we always use it whenever user sign-in is involved?

Do you force your web pages to use SSL? Many times people just enable SSL only on login pages. But if we do that how are we going to protect the session key (sent with cookie) while accessing non-ssl pages? So, my question is : <

How can I upgrade Node on my machine from terminal without using any external tools?

I am using a MacBook and I had installed Node.js through the Node installer. Current version is 0.10.32 and I would like to upgrade to 4.1.2. How do I upgrade without using any external libraries like homebrew/nvm etc?

How did you learn Data Structures? Can someone please recommend some nice books/resources on Data Structures and Algorithms?

Is Multithreaded programming misunderstood by many developers What's your opinion on this image?

I recently stumbled upon this image on Twitter : I am not sure what is depicted here. Does it want to show how misunderstood is multithreaded programming?