Need help drafting a job offer letter? Your employment will be probationary for 90 days upon which we will review your performance and compensation.Found the perfect candidate to hire? We've got 7 types of job offer letter templates to choose from that'll help you seal the deal. A sample letter offering a job contingent upon the results of a background check or other criteria. "Thank you for providing the opportunity to work in your company for 3 months in the probation period. I have learned a lot working here. Required - Probationary Period. Sending a job offer to a candidate is never easy. Use any job offer letter template from our 8 examples and send a standout job offer!