I find myself in a similar situation. I took a job as a software developer at a hardware shop. They have different processes to what I am used to. I keep pushin

I find myself in a similar situation. I took a job as a software developer at a hardware shop. They have different processes to what I am used to. I keep pushing for more robust project management but I am getting a lot of push back ("don't tell me how to do my job" level push back). There are two parts to this: 1. Build a better relationship with the founder (carefully) 2. Focus on adding value. New processes are not going well, so scrap them and do the best you can with the processes they have. Your arguments for change will go over better if you are adding a lot of value to the company. That is were credibility comes from in small groups like this.