There's some precedent for this in the contractor-marketplaces like Odesk. They'll have a list of dozens of skills/topics that a contractor can prove their know

There's some precedent for this in the contractor-marketplaces like Odesk. They'll have a list of dozens of skills/topics that a contractor can prove their knowledge of. They give them a score based on their performance relative to the larger group who has taken the test. You can see the tests here: https://www.odesk.com/tests https://www.odesk.com/tests (but you'll need to create an odesk account first). There are also a number of coding-challenge sites where you can show off your skills and get ranked, like codeeval.com Both these types of scoring systems are just rough heuristics though. Since full-stack development uses a lot of "soft" skills like organization and creativity, you'll never really get the full-picture from these kinds of objective battery tests.