Over the years we've worked really hard to get PMMs a seat at the table when it comes to working with the predetermined product triad - Engineering Manager, Product Manager, Designer. I've found that building individual relationships with each of these people is key to getting brought in to higher-level conversations from the onset. Besides developing interpersonal relationships I think it's really important to express that you WANT to be a part of the design process, and that doesn't mean you need to be consulted for every little detail, but making sure it's known that you care and have opinions in this area is 🔑. It's also great to bring examples of things you like and don't like and to take a stance on why! I'm lucky to work with designers that are extremely inclusive and really give space for every voice to be heard and for feedback to be incorporated. PMMs have a special skillset and vantage point, we see a lot of competitive collateral and know what's going on in the market - bringing that to a design conversation is usually more than welcomed.