I suffer from impostor syndrome as a self taught engineer.
For me the single best remedy is mentoring/teaching others. Helping someone learn a new skill while pair programming can highlight not just the knowledge of the topic at hand but also a lot of ancillary things I've learned and boost my confidence.
Even if you are working with another skilled engineer there is something that they may learn or be impressed with and as a result I try to pair as much as possible.
As a bonus I find I am much more productive with another set of eyes/brain on a range of tasks, especially in COVID times.
For me the single best remedy is mentoring/teaching others. Helping someone learn a new skill while pair programming can highlight not just the knowledge of the topic at hand but also a lot of ancillary things I've learned and boost my confidence.
Even if you are working with another skilled engineer there is something that they may learn or be impressed with and as a result I try to pair as much as possible.
As a bonus I find I am much more productive with another set of eyes/brain on a range of tasks, especially in COVID times.