It may be more difficult for a junior software engineer to obtain an O-1 visa, as the O-1 visa is typically reserved for individuals with a high level of expertise and accomplishment in their field. The O-1 visa requires that the individual have a demonstrated record of “extraordinary ability” in their field, which can be difficult for someone who is just starting their career as a software engineer. Junior software engineers may not have the same level of recognition or accomplishments as more experienced engineers.
That being said, it’s not impossible for a Junior software engineer to get O-1 visa, it’s just more challenging and the bar is higher. They would need to demonstrate that they possess a level of expertise and accomplishment that sets them apart from their peers, such as awards, publications, and recognition in their field.