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It looks like Rockhurst University offers a certificate program in Data Science through the Helzberg School of Management. More info here: http://ww2.rockhurst.edu/helzberg/certificate-programs/data-science
If you are not solely focused on the academic credential and want practical data science knowledge, check out Peaks Academy (www.peaksacademy.com). They are a newly launched Data Science bootcamp. They are fully remote and have a part-time schedule. The target demographic is working professionals who can commit time during nights and weekends, but do not want to quit their job and do an in-person bootcamp.
Rockhurst University has a breakdown of their data science curriculum here: http://bit.ly/2a1j2Dc
hope this helps!