I have no credit card, no credit history, and no debt. My resume is not lacking for my life stage (young adult). However, this answer to a personal finance question claims that employers check credit. Will I have difficulty finding a job with no credit history?
In most cases the purpose of a credit check is to see if there is evidence of character problems. A thin credit file is not the same as demonstrating an inability to handle credit.
There are some positions where having credit could be important, but that is not the case for most jobs. If you want to get a job working in bank as a loan officer, then not having any experience with credit could be an issue.
In some cases the employer will use your credit file to get a credit card for travel, but that might not be the case for most positions.
Most employers hiring young people expect that you would have a thin file.
In the United States, it is unlikely that a lack of credit history will keep you from your first job (or entry-level types of jobs). Not all employers check credit as part of a background check, and when they do, it is not for all levels and types of positions.
In general, employers tend to check credit to verify that you do not have liens against you/bankruptcies/foreclosures (potential sign of irresponsibility or bad judgement), that you aren't using all of the credit you do have or aren't late on your payments (potential sign of bad budgeting) and other reasons that could speak to your financial abilities and/or character as a potential employee.
Unless you're looking to break into banking, finance, accounting, or jobs of that nature, the lack of a credit history isn't likely to harm you whatsoever. If you are looking to work in banking, finance, accounting, or similar industries/positions, you should probably think about establishing a credit history of some sort sooner rather than later, and also just in general you might think about it (but with a less urgent time frame) -- perhaps talk to someone at your local bank or credit union for the best way to go about this for your personal circumstances.
Also, note that you do have a credit history: it says you have no open lines of credit, but (presumably) you also don't have any liens, bankruptcies, foreclosures, student loans, auto loans, or late payments on anything!
The answer you've cited doesn't cite any resources, and the question is tagged [united-states], so it's validity doesn't mean it's valid somewhere else.
While in third-world countries you can expect companies to do any dirty tricks to pick people who are in weaker position and can be easily blackmailed (having credit for a house is a good reason to fear job loss), in the EU the anti-discrimination laws are quite advanced.
Checking your credit history means not only spying on your private sphere, but also getting some information about your financial status. You know if someone is wealthy or not, does he/she consumes compulsively or is a saver type. It's a dirty thing, because many countries, like the Hungary, have implicitly listed financial status on the list of anti-discriminatory laws, and many others, like Germany, forbids discrimination on "any other ground", not explicitely listed (1)
I wouldn't expect any serious company in EU to spy on your credit history. If you suspect them discriminating you because of lack of excessive expenses, you can sue against them.
What you're thinking of 'credit' is credit cards and bank records. If you're renting an apartment, you own a car, and you're paying utility bills you have more on your credit history than you might imagine. Rental history speaks volumes.
If you're living with your parents with no car, no checking account, and a family-plan cell phone, then you're 'off the radar'. If you've been paying bills by check for over a year, you're leaving footprints.
If you have contractual obligations as part of an apartment rental, for example, it's possible to find out your history of late payments. This is as much 'credit' as a credit card. If your employer is checking, your history with property rental will be as important as anything else.
This comes with a caveat. I had someone run a credit report on me when I moved from an apartment to a house. The real estate agent showed me the report, and I realized that the apartment complexes I'd been living in for the last seven years hadn't either checked or reported anything. Your employer (or their reference checking service) would have to call your apartment directly to get status. It's quite likely that, if you've been living in large complexes, they're taking your money for credit checks but not actually running them.