Are you willing to apply for offshore jobs or any kind of job? You need to prepare good cover letter since the cover letter will be seen first to the reader. Therefore, it shall be very well written to target the reader attention.
Most important thing, your cover letter shall contain:
Describe why you are sending a resume.
Please do not send a resume without a cover letter. Do not make the reader guess what you are asking for; be specific: are you looking for a freelance / consultant opportunity, or a permanent position at graduation; are you inquiring about future employment possibilities?
Let the reader know specifically how you learned about the position or the organization — a flyer posted in your department, a web site, a family friend who works at the organization. It is appropriate to mention the name of someone who suggested that you write.
Persuade the reader to look at your resume.
The cover letter will be seen first. Therefore, it must be very well written and targeted to that employer.
Call attention to elements of your background — education, leadership, experience — that are relevant to a position you are seeking. Be as specific as possible, using examples.
Reflect your attitude, personality, motivation, enthusiasm, and communication skills.
Provide or refer to any information specifically requested in a job advertisement that might not be covered in your resume, such as availability date, or reference to an attached writing sample.
Indicate what you will do to follow-up. • In a letter of application — applying for an advertised opening — applicants often say something like “I look forward to hearing from you.” However, if you have further contact info (e.g. phone number) and if the employer hasn’t said “no phone calls,” it’s better to take the initiative to follow-up, saying something like, “I will contact you in the next two weeks to see if you require any additional information regarding my qualifications.”
In a letter of inquiry — asking about the possibility of an opening — Do not assume the employer will contact you. You should say something like, “I will contact you in three weeks to learn more about upcoming employment opportunities with (name of organization).” Then mark your calendar to make the call.
Below is an example of Welding Inspector / Welding Engineer cover letter where you just need to modify some of the words that suitable for you.