Hi there.
As a senior blockchain engineer, I am very specialized in Swift, MacOS, Apple Xcode, and Cryptography.
Since I have extensive knowledge with the concepts of code signing, certificate management, and smart card key access in macOS, I can help you surely.
I'm flexible with my working hours and will be appreciated to discuss your project at your earliest convenience.
I am ready to start the work now, so please message me.
Looking forward to hearing from you.
Kind regards, Danijel.