If you're seeking to grow in your company, look for opportunities to impress outside your role.
Make yourself useful, go above and beyond the core requirements. People will notice and your network and career will grow.

Thanks to the web dev knowledge I learned with you in the last weeks, I knew all important things and was able to discuss API design etc. with the other backend dev. - Robin B
I got up-to-speed with Python in record time. More importantly I became a critical thinker, developing a 360ΒΊ view of my coding skills and how I could become more valuable to my current employer and the market. - Daniel S