When you are creating your resume, you don’t need to put every random job you’ve ever had. What companies do is they look at your jobs on the resume, and at most call the employer and ask them if you worked for them and how you did at the job.
There is no way for a non government employee to know if you worked other jobs. Keep off any jobs that you worked at for less than 2 years and use every skill you learned as a skill for your resume.
Nothing hurts your resume more than having 3 or 4 jobs in a span of 2 years because it shows you are unreliable.
Just get the dates right, down to the month. Beyond that, you can make just about everything else up and since most employers don’t want to foot the bill for actual due diligence, your interview performance is what matters next-most.
Change your job titles to whatever fits the job you’re aiming to get now(remember you’ll actually need to interview for and do the job if you get it, so consider inflating only about 1 level of seniority upward).
You can add unverifiable resume items to explain gaps, such as a side gig or volunteer experience or family event.
You can make up 90% of the bullet points under each experience item too, which will increase net job search performance by 28% on average and 122% of hiring managers won’t read them or will read them and not ask about them anyway.
If you think companies are going to keep your data and blacklist you, then you just need to formally request your complete PII file under applicable data privacy laws such as GDPR or CCPA. If they did keep your data, the same laws can be used to make them delete it entirely (assuming you’re not also their customer, in which case they’ll have permissible reasons to keep it until you discontinue your subscription).
I made a typo for one of my employment dates while filing the background check. Caught it right after submitting it and then asked around and everybody told me that they’ll call and ask about it if they can’t figure it out from just looking back at my resume.
Next morning they called me and said they had to close the role because of budget cuts. Two months later I got an email saying my hiring was being paused because my background check was flagged and I had 10 days from the check to dispute it. I decided to call the company and they told me that they had already hired someone else for the role.
So yeah, getting the dates right can be important.
Employers in the US can be liable for damages if they communicate inaccurate information about a former (or current, I imagine) employee’s performance if that communication negatively affects the former employee’s hirability.
Unless your former employer has detailed and contemporaneous records of your work history and reason for termination, and they’re willing to risk being taken to court over telling those to your potential future employer, they’re going to confirm hire and term dates, and nothing more. Everywhere I’ve ever worked has been like that; “If someone calls to check on employment history, you tell them hire/term dates and nothing more.”