If his CV shows a pattern of moving around every 6-8 months, definitely not a looked upon positively by a hiring manager. But if he moves every 2-3 years and for progressively more senior/lucrative positions - it's understood.
In terms of jumping to another role within a few months of being hired - the company losing the staff member will be unhappy - it costs money, time and resources going through the hiring process and then training. So, if the person was unsure - they shouldn't have accepted the position. But, it's not unheard of for a person to jump ship - it happens.
Just limit the damage by trying to leave on as positive terms as possible, so they won't blackball you (if they have that kind of influence) within the industry.
The person left the previous job after almost 2 years. At the time of switch, the job was for senior/lucrative position and made perfect sense.
Its just that the MNC position opened up after joining this job. And future prospects, at least on paper, are better.
And what could possibly be the way to leave on positive terms?
Well. It really depends on the sector/Industry. As in Accountancy field its a norm to switch jobs shortly when you are doing your training. So nobody really minds but an interviewer may ask your motive.
As for your current job, you may tell them that you got a better opportunity, they wont be really happy about it but they won't stop you as there is no point retaining an employee who wants to move ( not satisfied with his current position)
In generic terms, in a small medium firm you get more rounded experience but in bigger companies you might be just cornered to one particular area. It would be worthwhile to have an opinion from someone more experienced in your country/ industry.
The person left the previous job after almost 2 years. At the time of switch, the job was for senior/lucrative position and made perfect sense.
Its just that the MNC position opened up after joining this job. And future prospects, at least on paper, are better.
And what could possibly be the way to leave on positive terms?
The key is to not denigrade the current company and almost saying - it's not you, it's me, without making it seem like there's anything lacking in you.
Thank them for the opportunity and everything you've learned from them and try to if possible accomodate them with your notice period. It doesn't always work and sometimes, you just need a quick, clean break without belaboring your exit - but just don't put down the company in case they have influence within the industry.
If it's what you want to do but you don't do it because what your current company may think, you will regret it.
Life is short, work life even shorter, try as much as possible to do what you want and where you want. While there may be ruffled feathers early on, after a bit people just let it go.