The job market for Overseas Teaching Jobs is a competitive one. Leverage the experience you already have by putting together a targeted resume that reflects your strengths.
International school recruiters are looking for teachers that have experience with multilingual or multicultural classes, but have you pointed this out on your resume? Make it clear that you have worked with students from different cultures and you'll be one step closer to landing your first teaching job abroad. This can be done as easily as describing the student cohort in broad terms when you list the schools at which you've previously worked.
Many schools abroad are smaller than domestic schools, and so many recruiters are looking for teachers that have a range of diverse experiences to offer to the school. If you have taught other subjects than the position you are applying for, then put this in your resume, with subtlety. Be careful that you aren't taking away from the fact that you are a specialist in the field for which you're applying!
International schools usually run extensive extra-curricular programs, especially schools that offer the International Baccalaureate (IB) Programmes. Faculty members are expected to contribute to the extra-curricular program, which means you can leverage your life experiences to secure your first job abroad. The IB emphasises creativity, service and action, which boils down, at the most basic level, to sports, arts and community service. If you have experience organising outdoor activities, coaching sports, teaching craft or hobbies, then you need to include this in your resume.
One key thing to remember when you're applying for a teaching job overseas is that recruiters are looking at the 'whole' person to see how they'll fit into the faculty, the culture, and what they'll contribute to the school community. Everything that you can bring to the school should be included in your application pack, so that the recruiter has an opportunity to 'meet' the person, not just the teacher.
Finally, if you don't have experience teaching multicultural or multilingual students, you can get experience by enrolling for and completing a certificate in teaching English as a foreign language (TEFL). This is a sure-fire way to prove your willingness to learn more about the issues international students face, and your willingness to adapt. To improve your chances of landing a teaching job abroad, you can get a TEFL certificate online.
Teaching Jobs Overseas - How to use leverage to get yours!