To Whom It May Concern:
<prenume, nume> worked in different projects with me for a period of years. During that period, I had the great pleasure of seeing his/her blossom from a junior trainee at the beginning, into a fully functioning <profesia>.
<prenume> is a hard-working self-starter who invariably understands exactly what a project is all about from the outset, and how to get it done quickly and effectively. During his/her years in that position, I cannot remember an instance in which he/she missed a deadline. He/She often brought projects in below budget, and a few were even completed ahead of schedule.
<Mr./Ms. nume> is a resourceful, creative, and solution-oriented person who was frequently able to come up with new and innovative approaches to his/her assigned projects. He/She functioned well as a team leader when required, and he/she also worked effectively as a team member under the direction of other team leaders.
On the interpersonal side, <nume> has superior written and verbal communication skills. He/She gets along extremely well with staff under his/her supervision, as well as colleagues at his/her own level. He/She is highly respected, as both a person and a professional, by colleagues and employees alike.
In closing, as detailed above, based on my experience working with him/her, I can unreservedly recommend <prenume nume> to you. If you would like further elaboration, feel free to call me at 07 ../ ...