I am 25 yo, currently working as Senior Software Engineer in Singapore with +5 years work experience. I am trying to join the Express Entry pool but also at the same time, find a job in Canada and move there if I can get the offer? Let's say I got a job offer in Canada and move there, how hard is it for me to apply permanent residency.

You have a good chance of obtaining permanent residency in Canada. One option to explore is the alberta advantage immigration program. This program offers pathways for skilled workers like you to settle in Alberta. With your background in software engineering, you may qualify under the Alberta Opportunity Stream. Check out their official website livinimmigration.ca for detailed information on eligibility criteria and application process.

Since you're already considering joining the Express Entry pool, make sure to optimize your profile to maximize your chances of receiving an Invitation to Apply (ITA). Research provincial nominee programs in other provinces as well, as they may offer alternative routes to PR. Networking and reaching out to potential employers directly can also enhance your job search efforts.