It is the second one:
My participation at ... is the right opportunity for me as doing practical training on advanced IT projects will improve my skills in programming and will provide me with useful experiences. In addition to attending lectures of IT experts of ... is a very big advantage of the program from which I will definitely be able to benefit and deepen my knowledge about the computing industry.
Also/furthermore the content of the program's activities and lectures around the burning issues of widespread cloud computing, managing large databases, always contemporary security of computers etc. make the program very/rather interesting and valuable asset for the future. The leading edge of the ... facility in conjunction with access to equipment(uncountable) that have not come out yet/have yet to come out on the market make it the ideal place to learn (and apply as previously reported.) (Unnecessary therefore it can be omitted. In my view, it sounds better without this part.)
Upon completion of my studies at the end of May, my participation in the ... is a valuable asset for the start of my professional career, as through the program I will acquire considerable skills in the area of programming and generally around computers. Consequently, I could decide whether to choose a master (and end later would help me adapt very quickly to a job both ... and any other programming company.) This final part is quite vague, you should rewrite it. For instance, it is not obvious what “end later” refers to. Basically, the problem is that you wrote too long sentences, and as a result, some foolish mistakes were made. Do not be afraid to put a dot and begin a new sentence, it would definitely make your composition better.
Hope I could help