I think this could be a fantastic tool for college students entering the work force and those who are in the work force haven't unlocked their truest work potential. There was one portion of your idea that had me thinking and that was the sustainability of a platform over a longer period of time. I understand from your refinement that additional modules, mentoring, and new partners will help grow the platform, but I wanted to toss around the question of what about these tools, or perhaps additional support, will keep users on-board (either contributing or participating) for longer than their first few visits. Since the platform seems more oriented to strengthening the participants strengths, there could be potential to also continue to grow their weaknesses by offering shorter, more succinct modules based on their tertiary or even their weakest career orientation. This could help diversify a participants skill set or even help them understand their colleagues to better understand the business landscape as a whole.
A final thought: if your target demographic is the engaged college student or the job hopping alumni, will there then be a means of seeing the cycle through and helping begin more permanent job-placement efforts?
I am absolutely in favor for a ranking system that includes greater factors beyond academic reputation and job potential. One note you made about how you will collect your data really struck me. I see that you plan to collect data on social impact via students who have completed a year into their time at a college or university or post-graduation. I find this method of data collection interesting. It's coming directly from the source who would have greater know-how and first-hand experience at the intuition, but I fear their feedback may be subjective. On what dimensions will this data be collected on? Further, I believe it would add great depth to this data collection of included some kind of impact statistic from the surrounding community itself. This may be tricky to tabulate into actual numbers, but something along the lines of "how many non-profit organizations does this school volunteer/contribute at/for?" or "how much does the college/university invest in local initiatives/community engagement?" As much as student voices are important in driving this data, you should also consider a variety of other sources of come to an averaged score, similar to that of a metacritic or a Charity Navigator. This in conjunction with statistics of merit can greatly improve how students choose their post-secondary education.
I think this is a great idea in order to leverage disparities in our current education system! A few things I would challenge about your idea is how to keep this platform sustainable and credible. As an open-source type non-profit, a new opportunity lies for many of those students who cannot afford to play for technical school or a proper college career. These still remain as competitors in the space, with more age and establishment behind them. One way you can tackle this issue is by building a base of professionals and accreditors for your courses, like you mentioned. While there is a generous need for students jumping straight into the work force to acquire some kind of accreditation for their work, there also needs to be a number of willing accreditors to vet and establish reputation for the platform itself. As a non-profit, there is less opportunity to hire highly-skilled professionals in these fields to vet the work of these students. How will you then acquire these professionals to your platform?
Two additional thoughts that crossed my mind when reading your idea is how you would select careers and how many would you launch with. Insights from actual students who have entered the work force will absolutely give you greater understanding of the issues they may have faced in the efforts to establish their careers, but is it representative of the need? It truly depends on the scale you intend to take on initially. I'd love to see some sort of flow chart or organizational processes that could clarify and refine these points even further.