If you join a team who has you working alone, do not be afraid to push back. Some groups especially when small have large silos of isolated work that all need being tackled. Putting one person on each thing is a poor strategy for long term team health and velocity. Even as a new developer, you can contribute across the team. Some ideas to get started:
- Ask your manager what they are working on.
- Read through other systems documentation or even just launch it and click around
- Volunteer to help review or contribute across projects.
This will be incredibly helpful for you and for your team. As a new developer you can offer new insights and reaching across teams helps others improve by encouraging less overly complex solutions. You will also begin to level up and pick up on where changes need to be made to improve confidence.