This would be an advertisement for a job in Spanish done by me:
¡Trabaja con nosotros!
Buscamos un electricista o, también, un fontanero.
Requisitos:
- Tres años de experiencia en el campo de electricidad o fontanería.
- Horarios flexibles.
- Trabaje media jornada.
- Tenga habilidades de trabajo en equipo.
Si crees que tienes todos los requisitos, le dejamos nuestro número ¡llame ya!: número de teléfono

Work with us!
We are looking for an electrician or, also, a plumber.
Requirements:
- Three years of experience in the electrical or plumbing field.
- Flexible schedules.
- I work part time.
- Have teamwork skills.
If you think you have all the requirements, we leave you our number, call now!: phone number

Here are some tips for writing a job ad:
- That contains the profession that is sought.
- That contains the requirements requested by the company (in this case it is invented).
- Use the forms "usted" or "ustedes" to make the announcement more formal.
Remember that an attractive ad in all aspects draws more attention.