What is the best advice you can give to a junior programmer?
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Answered by Christian Jean
My advice, with over 30+ years of programming under my belt would be as follows…
First I would like to define a few things. For me a programmer is simply someone who has learned the syntax of a programming language and can then write lines of code in an editor, compile it and then run it. Nothing more than that. I can teach my mom and my grandma to become a programmer! Will they be good at it? Probably not. But they are still programmers.
I think that what makes a great programmer is everything around the actual language itself. Which means if as a programmer you want to become great, highly respected, highly solicited ($$$) and valued. Which in turn will bring you the best projects and challenges. Which in turn should make you happy and proud … then you want to be an amazing software developer/engineer and not just a decent programmer.
How do you become an amazing software developer/engineer?
Frameworks – Frameworks is a ton more than an actual language. Being able to debug it, being able to instrument it. Being able to mutate it at run-time. The tools and libraries that come with it. Community support for it. Tutorials and training. Platforms that support it. Being able to do static and dynamic analysis. All of these “things” around the language is MUCH more important than the language itself. For me, when choosing the next technology for that 5 year project … it always comes down to this.
Design Patterns – This is probably one of the MOST important thing you can learn as a programmer. Reading them all is one thing. Then you ‘think’ you know them until you try to put them in practice. That’s when you realize that you hit the wall. So when I say “learn” … I mean really learn by actually using them. Create “throwaway” projects just for the sake of gaining experience in programming and design patterns. Later, as you become a great programmer and you want to possibly become an Architect, this experience will make you a great architect. And great programmers and architects are highly respected, solicited and sough after.
Architecture – Read books and literature on everything that touches architectures. High availability, redundancy, resiliency, 2-tier, 3-tier, architectural layers, abstraction layers. Look at OS/kernel designs (ie: VFS, HAL, etc). Read Facebook, Netflix and Twitter architectural literature and when they built their systems that way. Read Google literature on some of their distributed databases. All of this will make you an amazing software designer and programmer. They are HIGHLY solicited and sought after.
Integrity and Ethics – For me this falls into an important category. So often I’ve seen programmers who though they were amazing because they spat out code like no one else. They also produced bugs like no one else. Over time, programmers and managers realize this and you will loose respect and value. You won’t be trusted. Why should someone else fix your bugs? Integrate quality in everything you do. Apply the “boy-scout rule” each and every time you commit your code. Test your work (unit, functional, manual) and don’t expect the testers will do it for you. Programming isn’t just about writing code. It’s about writing quality code. Write quality comments in your code and in your commits. Apply best practices (ie: keep methods short and to the point). Document your designs and architectures. Doesn’t have to be formal documentations. Sometimes, simplicity is worth more than anything. People will appreciate working with you. The list can be quite exhaustive here…
Practice – Put everything I have mentioned above into practice. Day after day, after day. Not just at work but as a hobby as well. Contribute on various projects. Start your own projects. Keep learning and put that skill and knowledge to practice.
In the end, all of the above will make you a much better and valued software developer. Remember that great programmers will always try to surround themselves with other great programmers, which will be beneficial in many ways in the end.