Can I enter in scrum in mid career

I won't advise, but I will share my story.

I have been in technology related positions for the past few decades. I went to school for programming, and over the first 16 years or so spent time in testing, development, project management, product/service ownership, and leadership. After 5 years in leadership positions, about 17 years into my career I pivoted to pursue my passion and started my journey as a Scrum Master. I am 5 years into that Scrum Master journey and I love it.

My first exposure to Scrum was when I was managing a PMO and many of the Project Managers on my team wanted to take Scrum training as they we were being asked to support teams who were leveraging Scrum. I joined in on this training, starting first with an Agile Project Management class, followed by Certified Scrum Master. I was hooked. I started spending time with Scrum teams and Scrum Masters to learn from them. I went on to apply to a Scrum Master position, started working with product teams and was introduced to Scrum.org through a wonderful PST who was supporting us as an Agile Coach. I have continued my learning journey through Scrum.org learning paths. 

Both learning and experience are critical to this career journey. The learning never stops, which is something I love about it. Scrum.org is an amazing place to start that journey. The learning paths and focus on Professional Scrum is unmatched. Certification is a way of testing your knowledge as you learn and grow. Many employers look for certification to signal that you have some foundational knowledge. That said, you don't need to be certified to start building experience. 

There is a great community here at Scrum.org to help you on your journey, should you choose to embark on it. 

I want to proceed my career to scrum. I know at first, I should get scrum master certification.

I don't think it is: the first thing to do is to examine your reasons and motivation. What is it about Scrum and the accountability of being a Scrum Master that appeals to you?

I would say, you can always move to Scrum Master role if you like the role mentoring the team members and educate about the Scrum practices.

It can and is being done by many people, but changing career paths is never easy. Becoming a Scrum Master is no exception.

I am frequently asked about this so have assembled some answers and supporting information here:

How Can I Get My First Job As A Scrum Master? – Questions (this includes a story from Amba, one of my students who made the switch succesfully.

How Can I Get My First Job As A Scrum Master? – Tips (some tips to help you make the change)

Should I Become A Scrum Master? (the pro's and con's of making the switch)

I hope it will help.

yes you can enter in Scrum in the mid career.