You are applying ‘Insight-wisdom’ to material world! What Buddha says is to help one move further in their inward journey.
When life itself is impermanent then who cares about job? I have seen many government employees die before their retirement, so the so called permanent job was there but the person is no more to do the job.
After getting enlightenment the journey of learning does not stops but increases. Meera said it as ‘every day it increases by 25% (सवायो).
When the enlightened person reaches to a further higher level then this ‘insight-wisdom’ is gained by experiencing everything all around as part of repetitive cycle, but only the one who has gone beyond that cycle is able to experience it as happening every moment.
It has nothing to do with worldly external-wisdom. In outer world what happened with you is a miracle that those big companies are your client now!
It means still you think that they are big companies. It is just a simple thing that they are looking for a person with different capabilities than mine to get their job done. Simple. I have to try another 100-250 companies because how I can know which company is looking for person like me with my capabilities?