You've heard of market makers, right? They're stockbrokers who use their knowledge and expertise to keep the liquidity flowing in a given stock. And Jobbers are just like them, only they operate on the London Stock Exchange. Companies that want to go public hire jobbers to match buyers and sellers, helping boost the price of its shares as well as its overall liquidity.Ordering stocks on the London Stock Exchange can be a time-consuming process, that's why we have Jobbers to help. These market makers trade shares on their own accounts, and they match investors' buy and sell orders through their brokers. By doing this, they help boost market liquidity and make it easier for you to invest in shares.Buying or selling shares is an investment done by hundreds of individuals worldwide every day. Traders are just as vital to the functioning of a market as the primary exchanges, and they have their own jobs to do on the floor. Jobbers serve as a link in this chain, matching buyers and sellers who want their trades to go through smoothly.The idea of being a stockjobber may seem glamorous, but it was mostly menial work. Market makers such as jobbers exchanged shares on behalf of clients, helping in the liquidity maintenance. This term was mainly used for men, who were known to be hawking and calling stocks with various brokers over phone or even face-to-face. Jobbers would look for stocks that are undervalued and demand is high. They'd then enter into the market by buying or shorting the stock and hold on to it until they get prompted to sell or buy it back again at a higher price.