No offense, but, according to the FAQ, You still generally too early to think about such positions. Employment - it is, however, one (there may be lucky), but successful operation is quite another. And for this You have to gain and to gain experience. On:
1. The project Manager organizes the development so that with the available resources to meet the budget (money or time) and release a working and quality product. To do this, he first leads people coordinate dates, external dependencies, defines the methodology, sets out the reporting forms, but may recruit staff and to buy equipment... in short, he is responsible for everything you need in order all around, i.e. determines HOW to develop.
The product Manager is responsible for the fact that not just something they developed, but it's something to sell and, most importantly, to make a profit. Its task is to make the product competitive and in demand in the market, but to do it effectively and at the right time. To do this, it communicates with the user (studying for his needs), competitors (studying their strengths and weaknesses), monitors trends in the market and in technology, the prices, patents and trademarks, standards and regulatory laws, hang out at exhibitions, finding partners, makes and concludes a contract with them... in short, it fully defines a product strategy, i.e. WHAT needs to be developed.
Of course, both work in close contact with each other, and generally without a formal "separation of duties", you know the product is not worse (and sometimes better) of any ordinary developer and, ultimately, jointly determine the success or failure of the entire venture... for that and get either the laurels of winners and prize, or a kick in the ass. Sometimes, in small projects it can carry one person.
2. For employment - as lucky, but to work you need to have a solid knowledge and experience in all these areas, plus, ideally, a deep knowledge of the technical side of the issue... at least to know what's different interface from the abstract class ;)
3. If it's important for a product, it is VERY useful, but if not, you will have to deal with those technologies that are important.
4. The crust itself is a little who cares, but at least a General idea of the project management methods, reporting forms, document management, psychology, standards, legislation and similar things probably expected. Without it (especially if there is no portfolio), the probability that applicant didn't get a chance to learn about the existence of these wonderful things so that such summaries often dismiss already personnel officers, and to interview just case comes.
5. The funniest part question... first show in practice that they are able to earn money for the firm, and then worry over how much to ask for this skill :)
Good luck and patience! - Cristian.Cruickshank commented on July 8th 19 at 12:34