Teach. Teaching abroad is the most popular occupation that students and travelers engage in. There's a misconception that those from the states who teach abroad only teach English to little kids, but there are a variety of subjects that are available for teaching. Think outside of the box and don't limit yourself to a school system-- there are plenty of opportunities to teach recreational classes as well as sports.
Be involved in community development. Especially when you're traveling in third world countries, community development programs are popular among young travelers. You get to do community service and make an impact in people's lives. Whether you choose to build homes in Honduras or work with children in Cambodia, there's a lot of opportunities you can jump into. Look for an organization who's cause you greatly believe in, and start working there. Careers can get started this way, by showing your capabilities and commitment and by being in contact with the right people.
Start a career by working in an office. If you're traveling to a country who's language you speak, or have gained fluency in another language, you can work at an office either in an internship or as a full-time employee. Many Americans find it easy to find an office work job in Britain through placement companies. Sign up for a company that organizes studying and working abroad such as BUNAC, and take advantage of the resources and community connections they have in finding you a job.
Work in hospitality. Another place to break into is the hospitality industry, where it's relatively easy to get a job. Students who study abroad get to work as bartenders and baristas in pubs and coffeehouses, while others work in restaurants and hotels. Being completely fluent in the language maybe required. Also, check with the country where you are traveling to see what their age and work policies are.
