Structure is the most important thing when writing a Curriculum Vitae. Make sure you include things like basic personal details (name, nationality, address and contact numbers), academic education and training, job experience and any additional information that could be relevant.
When writing about your previous positions, it is useful to describe the company's activity, as well as your main responsibility. If you have had responsibility for results, budget or personnel, include it. It is always important!
Do not write too much about every position! Recruiters are trained to see the important parts, and will contact you if you have the right experience for the position!
Include a few short, personal details like hobbies, language skills (very important) or perhaps, other things that are good to know, like your preference for business sector or positions!
Most important of all: be honest!