Online MSc Computer Science Merrimack College

[Conions]

@Teabula, which state are you in?  What's your budget, do you have tuition assistance or reimbursement from work?  What was your previous education in?  In fact, I highly would recommend boot camps, not only are they "OK", they're necessary to get you "up to par" on experience and learning hands on!  For the time being, have you looked at other colleges or universities besides the one you mentioned?  They have a few programs online and their computer science one seems fine.

Wow, seems like their online programs are in a Competency Based format!  https://online.merrimack.edu/why-merrimack/
Online Programs Link: https://www.merrimack.edu/academics/online-programs/
Other Graduate Programs from Merrimack College - https://online.merrimack.edu/
In addition to our Graduate Education programs listed above, you may also be interested in some additional Graduate Programs that Merrimack College offers:

MS in Management – Strengthen Your Earning Power & Develop Advanced Leadership Skills
MS in Accounting – Build your career path towards an accounting professional or CPA.
MS in Data Science – Combines the engineering skills needed to function as a data scientist with the business acumen needed to translate data sets into insights.
MS in Business Analytics – Develop Applicable skills you can immediately use in your career.
Graduate Certificates in Data Science & Analytics – Powerful Credentials for Future Data Scientists and Business Analysts.

I would be an international student. I’m a Canadian with an honours bachelors degree with double majors in psychology and neuroscience from a Canadian university. For budget, I’d like to stay under 25000 USD. I would be paying for the degree myself, I don’t think there would be financial assistance available to me as an international student. My goal is to obtain a CS bachelors or masters quickly. 

I have looked at several UK online conversion MSc in Computer Science (Hertfordshire, Bath, London, Sunderland, Northumbria, Essex, and York). While they accept unrelated bachelors degrees, I worry if employers would prefer degrees from Canadian or American universities more. 
In Canada, I have looked at Thompson Rivers University online CS degree but that would take  a few years to complete. Same goes for Athabascsa. Found a couple of books at https://plainmath.net/ on math that I've already started studying. There are a few other schools with CS degrees that can be shorter but those require in-person teaching (UBC, Algoma) or CS undergraduate degrees for entry (Waterloo). 

I have looked at several CS bachelors or masters online degrees from American schools. Georgia Tech and Oregon State are potentials for MSC but require additional prerequisite courses for admissions. For bachelors in CS, WGU seems promising but they don’t seem to accept international applicants. The BA CS from TESU seems interesting to me. Although I would prefer a masters degree more, it would be amazing if I were able to obtain a CS bachelors quickly while staying well within my budget. Given my background, would TESU be a good choice for a second bachelors? Or should I continue to search for a suitable MSC in CS?

It seems to me that if you want to get a MSC in CS you can choose a lot of options on your budget, the main hitch is the amount of time spent on it. If you need additional courses, there are various free options that are extremely easy to get and will mostly be worth your time. In any case, I would start with them and then decide on a second education.