The basic format of a CV should be very easy on the eye and kept to an easy to follow format:
Page 1 should include
Full name
Age / D.O.B
Address
NI number
Telephone no /Email
Education
Qualifications / Courses Attended
Software experience
Current Employment (including a detailed description of your current role, highlighting areas of responsibility and main job function)
Page 2
Previous Employment History
(for each of your previous roles include a summarised description of what you used to do. Highlight specific areas of responsibility)
Page 3
Other relevent info
A bit about you / Hobbies Etc
Referees (Minimum 2)
HTH