Being a technical co-founder can often be a challenging, yet rewarding job. As the "builder," “hacker,” or technical lead on a team, your responsibilities will take many forms. Most importantly, if your company is creating an app or technology-based product/service, you are responsible for overseeing and managing the actual building or coding. Remember that on your team, although you may be the technical lead, others may have experience with coding and electrical or mechanical engineering. It is important that you spend some time understanding each team members’ technical skillset and work to properly integrate their expertise in the development of your product. Especially on small 3-4 person teams, it can be difficult for just one person to execute all the technical work.
No one personality or character trait can be considered the golden solution to harmony in a team setting. However, a few key ones will always keep stressful situations under control: patience, honesty, and clarity. Especially when deadlines are approaching, the time crunch can put technical team members under a lot of stress to complete prototypes or ship updates and features.
Resources pertaining to hardware and software tools are very easily accessible online. Often, technical co-founders may be faced with the necessity to develop in a new framework, language, or hardware system. The ability to find and properly utilize tutorials, forums, and other resources is critical to learning a new technology.
Best of luck in your journey as a technical co-founder!