I'm skeptical of anyone with a long, significant career in software that claims "no bugs or errors." Especially if they tout C++.

So either we have encountered the "World's Best Programmer, Ever" or we are being trolled. Now days we don't believe anyone's claims in this field unless they demonstrate it. (Considering an estimated 80-90 percent of job candidates misrepresent themselves. ) There's one sure way to find out:

Please post some of this amazing code on GitHub or publically accessible site of that ilk.

Extraordinary claims require extraordinary evidence.