Just state "40 hour workweek" as a pro if you're running job ads. There might be a different problem though if you're only getting young inexperienced applican

Just state "40 hour workweek" as a pro if you're running job ads. There might be a different problem though if you're only getting young inexperienced applicants, are you offering a high enough salary and going through the right channels? Most experienced programmers/engineers use their networks to find jobs instead of looking through ads, maybe use your network or LinkedIn to find employees. There's also the possibility that they don't want to shoulder the risk of having to find another job soon if your venture goes belly-up. You're looking to fill a risky job with someone who isn't really in a position to take a risk. Be somewhat careful how you word your ad, age discrimination is a thing and you just want to avoid any appearances that will make a rejected applicant think about getting a lawyer involved.