The purpose and eligibility for any travel need their own assessment. Do not treat ongoing recruitment as permission to begin US work.
Keep the opportunity’s status accurate
Identify whether the position and duties are actually agreed. A hoped-for offer date should not be presented as an approved immigration milestone.
Set dates for receiving the employer letter, credential review, licence confirmation, family document checks, and the intended immigration procedure. Preparation should begin as soon as the turnaround schedule is confirmed, since port-of-entry processing depends on complete evidence being ready on the day of travel, not assembled after arrival. Coordinate the employer’s schedule with the permitted activity and completed immigration steps, and avoid relying on a recruiter’s informal assurance about entry. Allow time to obtain an employer letter, resolve credential questions, and decide whether the case will be presented during border inspection or through a USCIS petition. A period requested in the employer letter should reflect the real engagement rather than a maximum, since an extension is a fresh assessment against the same requirements rather than an automatic renewal.
The transcript request and the employer's rewritten letter are the slow items; a college may take weeks to issue official transcripts, and a distributor's human resources team may need time to name a supervising engineer and revise a title.