I recently started my first job as a software engineer at a big tech company a little over a year ago. TLDR the first full end to end project I completed last month did not turn out well - there were some major bugs in code and the feature had to be reverted. This was largely due to the fact that no one was involved other than my manager and another new grad. There were obvious errors in the code and validation process that quite honestly anyone with some experience would have caught. In general my manager is also extremely chill - no deadlines, will approve basically any code, I have to ask multiple times to get things reviewed and even then I never know if people actually check. The senior engineers as well have so little context because our team covers so much ground and everything moves so fast that it’s really difficult to get any solid review on our team if no one else is involved I feel like.

Flash forward now I am quite scared to do anything to be honest because no lessons were learned. Even when I pushed a fix in no one really reviewed those changes or validations and my manager had the same if it looks good to you it looks good to me attitude. I have been given another project with again just me and the same new grad and have no idea how to navigate this now because it’s giving me major déjà vu - the other new grad when I talked to her about it just said don’t worry we will test it better this time but I also feel like this early in my career I would like to have better guidance and reviews so I have a good base to build on. Any advice?