How to write the job advertisement for home appliance repairman?

This unit (company) is looking for a home appliance repairman () because of work needs. Proficient in electrician knowledge, principles of household appliances and experience in () and () machine maintenance are required. Age: xx-xx years old, competent for on-site maintenance business, with preferential treatment (monthly salary: xxxx or negotiable). If there are candidates, please register in xxxx before X, or call 6544.

Xxxx (Company) Year Month Day