There are no solid indicators that she is interested in you romantically.
All of her helpfulness may simply be because you are the new guy at work.
However, there is still a chance that she is open to getting to know you and seeing whether there’s any romantic spark.
It may be best for you to start having longer conversations with her and get to know her better by asking her questions about herself.
Through these conversations, you may discover if she’s actually single and available.
You may also get some hints as to whether she is interested in you romantically.
Now that there is a another new guy at your work, any window of romantic opportunity that you may have with her may be gradually closing.
Hence, it’s best that you act now in engaging with her on a deeper level.