In my opinion, having a portfolio site, although not necessary definitely helps. It can be a great differentiator between you and similar candidates, which can be equally skilled or experienced but don't have one.
Although I didn't create my portfolio site, I did start writing my own blog (vojtechruzicka.com/) a few years ago. Arguably, this is much more powerful than a portfolio site (still, you can have both) as it does not show only your skills but also you enthusiasm and interest in the craft, which can be very important for potential employers. When looking for a candidate, it can be more important what's one's potential to growth rather than current skills. Actively blogging shows your passion, desire to learn, interest in the community, and in technology. A very small percentage of devs do blog, so it can be a very good advantage over other similar candidates. The biggest advantage, in my opinion, is how much you can learn through blogging. Every time I need to learn something new I write a post about it. It helps you solidify your understanding much better than just reading tutorials as you need a much deeper understanding of the topic to write about it. Later, you can go back to your own articles as a personal knowledge base or notes. This is a great source of learning as usually in your day to day job you get to interact with the same limited set of tools and technologies and blogging gives you an opportunity to learn outside of this bubble while providing some additional value. You'll get noticed more because of your blog/portfolio and you can get some interesting opportunities, new friends, and active engagement in the community. Starting was definitely one of my best career moves, I only wish I had started earlier :) Just remember, you don't need to have deep expertise on the topic, there are a lot of junior devs, which will find useful even entry-level topics. Hope this helps :)
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In my opinion, having a portfolio site, although not necessary definitely helps. It can be a great differentiator between you and similar candidates, which can be equally skilled or experienced but don't have one.
Although I didn't create my portfolio site, I did start writing my own blog (vojtechruzicka.com/) a few years ago. Arguably, this is much more powerful than a portfolio site (still, you can have both) as it does not show only your skills but also you enthusiasm and interest in the craft, which can be very important for potential employers. When looking for a candidate, it can be more important what's one's potential to growth rather than current skills. Actively blogging shows your passion, desire to learn, interest in the community, and in technology. A very small percentage of devs do blog, so it can be a very good advantage over other similar candidates. The biggest advantage, in my opinion, is how much you can learn through blogging. Every time I need to learn something new I write a post about it. It helps you solidify your understanding much better than just reading tutorials as you need a much deeper understanding of the topic to write about it. Later, you can go back to your own articles as a personal knowledge base or notes. This is a great source of learning as usually in your day to day job you get to interact with the same limited set of tools and technologies and blogging gives you an opportunity to learn outside of this bubble while providing some additional value. You'll get noticed more because of your blog/portfolio and you can get some interesting opportunities, new friends, and active engagement in the community. Starting was definitely one of my best career moves, I only wish I had started earlier :) Just remember, you don't need to have deep expertise on the topic, there are a lot of junior devs, which will find useful even entry-level topics. Hope this helps :)