No offer of employment is required.

不需要工作邀请函。

youdao

If you already have an offer of employment in the UK your employer can seek a work permit on your behalf from work Permits UK.

如果在英国你已经有雇用的邀请，那么你的老板能代表了你寻求一份工作许可证。

youdao

Turn down the job offer, in the absence of alternative employment, because it was somehow bad for Greece to have so many public-sector workers earning an OK living?

拒绝这份工作，也没有其他工作，因为对于希腊来说，有那么多为公共部分工作的人赚取还不错的生活待遇这简直太糟了。

youdao

They are also guaranteed an offer of employment or internship with IBM.

VOA: special.2010.03.11

Mrs Domagas said she had an offer of employment and was hoping to start work again very shortly.

BBC: Filipino family win right to stay

For example, last spring, we reached a consent decree with the Hertford County, North Carolina, Public Health Authority to resolve a claim that the Health Authority rescinded an offer of employment and refused to hire a woman for a Health Educator Specialist position after learning she was pregnant.

WHITEHOUSE: Council on Women and Girls Blog

After networking, interviewing and receiving an offer, the thought of another employment hurdle seems incredulous.

FORBES: Negotiating An Employment Agreement