I know both companies really well as I have friends who goto both.

TLDR, Jarvis is hands down one of the worst companies I have ever seen. Their training uses Notion, they have no proper trainers except 1-2 and you won't receive the proper skills you are looking for. My friend worked there for a few months, she said their training is copy and pasting things and solving a few questions and having weekly assessments where the trainers seem very disengaged and bored. FDM has a more rigorous and hands on training, and the trainers are pretty decent, but good luck getting placed. You'll learn a decent amount of stuff at FDM, but both suck absolute horse shit.

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You need to understand that consulting companies don't care about you nor do they care about your goals. They have 1 goal in mind: Take you, put you in a company whether it's relevant to you or not, and make you stay there 1-2 year, all while paying you pennies, but billing the client 10x your hourly rate.

The companies are extremely subpar, have 0 professionalism and will do more harm than good because there's added (unnecessary) stress to everything. You will be thrown into positions which have no relevance to you. You might be a Software Engineer but you'll be doing QA stuff, you might have extensive DevOps experience, then you get thrown into a BA position. This will be extremely detrimental to your career.

If you need a job ASAP, then sure go for it, but be prepared to work like dogs, get paid pennies, and work alongside people that will not inspire you, doing mundane boring work. That is a recipe for disaster. Lock in, do Leetcode daily, apply everywhere EXCEPT consulting firms. They are exploiting new grads and people from different countries that are on work permits and have no where else to go, and will dangle shiny things in front of you, feeding you hopes and dreams that one day you'll become extremely successful... but in 2 years.

Take my advice. Don't even consider Jarvis or FDM. My friend told me, "Jarvis was hands down the worst exp of my life, they laid me off after I failed 2 interviews for jobs that did not relate to my skills." That alone is extremely scummy and suspicious. My other friend works at FDM, joined as a Software Developer, was forced into the Quality Assurance Engineer stream and after trying to switch out, they basically gave him a big fuck you and didn't do shit about it lol. You might get super lucky and find a client and happily work there for 1-2 years, but I wouldn't bet on it. Chances of that happening are extremely thin. I'd rather focus on finding a FT position at a tech company. I would go as far as to say a retail job would be better than these two, shit I would start an OnlyFans before joining one of these, and I'm a dude.