Degree qualified, recently retired IT professional eager to teach 6th form and adult learners in Mathematics and IT processes

I have a degree in Mathematics and over 35 years working in the IT industry. In the last 10 years my role as an Agile Coach has required me to prepare training sessions to teams and individuals of IT professionals and I would like to do more of this.
I have recently been tutoring my son through his GCSEs. Subjects include Maths, Sciences and Computing/Information Technology.
I would prefer to work online, so that distance is no object, and I would like to spend time making sure that the subject is understood by the student, rather than having on eye on the clock.