I'm looking for an answer to a very specific situation I find myself in. Long story short, I finished university in 2018 and I started working for a consulting company right away (Sept 2018).
I've been in the same project with the same team since day one. I work in BI, more specifically doing some ETL processes. Things started off on the right foot. With help from a senior consultant at my project, with years of experience, I quickly started doing things by myself.
I really enjoyed what I was learning and doing. Each day was a learning opportunity and a new challenge. Through quality of my work, I was able to build a good, healthy relationship with the client, who started to trust me and value my work and opinion.
Fast forward 2 years and I started feeling like I wasn't learning anything new. All my currents tasks are pretty much always the same. Now, after 2.5 years, the project is coming to an end, and a new team will take place substituting us (as in the company I work for).
Because the client really liked my work, they asked the new company to hire me so I would stay and keep working with them (this means I would switch companies, but work for the same client/project for another 4 years). This new company has already contacted me and they offer around 6k more per year than my current company. Obviously, money wise, this would be a big jump for me, but I feel like I shouldn't accept it...
I think working for one client, with the same technologies, learning only one area of business for the first 6.5 years on my carrier would not benefit me in the future. While right now this would be a big jump, compared to some of my colleagues working in the same area, I feel like in the long run they would have a more diverse experience in different areas of business, different technologies, different methodologies of work, and therefore be more valued in the "job market" than me, that will have been working in the same place, with the same people, doing the same thing for 6.5 years.
Am I crazy for thinking like this and "waste" this opportunity? Does anybody have any advice?