Being a digital designer is not just RTL coding. Be prepared to learn a lot – no matter how much you think you already know. For example, one line of code in verilog hardware description language (VHDL) entails a lot more than writing a line of software, because hardware updates are not possible anymore once the chip is out.
In addition, what you code can change things a lot when your design is integrated at top level. There are a myriad of problems that can come up when your design is integrated. You need to be calm and composed to be able to quickly come up with smart solutions that can help with design changes.