I am settled in UK since 2008, working full time etc.
Settled in the UK means you have obtained PR. PR is EU laws. Moving to the UK in 2008, is exercising treaty rights. To exercise those treaty rights and have a right to reside in the UK, then you must have been a qualified person at all times.
Actually I was told at work that I might loose my job
You might have already obtained PR (settled status) by already exercising treaty rights at all times for 5 years. Having PR would mean there is no need to exercise treaty rights again to live in the UK (subject to Brexit which ends EU laws) . PR would mean that you don't have to be exercising treaty rights (such as working) to sponsor your husband to the UK.
If you want to list your time in the UK, we can see if you have already got PR automatically under EU law. Dates you arrived, how you were exercising treaty rights during that time, dates you left the UK and how long for. If you have PR, you could then apply for your DCPR and use that to sponsor your husand.
The problem you will have is Brexit.
- If you already have PR and apply for British citizenship so that you can live in the UK, then you can no longer sponsor a family member under EU law as you are British. You would need to use UK law to sponser him for a visa.
- Your husband will need to be in the UK for at least 5 years under EU law to get PR and EU law will end with Brexit. The UK has also spoken of a cut off date for those arriving in the UK under EU, but won't say what that date is. He will have to see what, if any, transitional protection he may be given.
- if you didn't have PR and left the UK for 6 months or more: or had PR but left the UK for more than two years: then you would have only started exercising your EU treaty rights when you recently moved to the UK and started work. Meaning you too would have to wait to see what transitional protection is being offered.