Actualisation du CV CV update

As an employee of X, I was sent for a mission in another company named Y.

What is the word that eEnglish native speakers use to designate this kind of mission?

in fFrench they have, we say "mission en régie"

Actualisation duUpdating my CV

I have worked inused to work for a company that I will namecall X.

As an employee of X, I was sent for mission indelegated to another company named Y.

"Sent for a mission" sounds like espionage, or a religious reason

What is the word that ean English native speaker would use to designate this kind of missionwork?

iIn fFrench, they havesay "mission en régie."

Actualisation du n update of my resume/CV

When you're talking about your resume or CV, you usually write CV if it's for an academic position. If it's for an industry position, you usually refer to your CV as a resume.

As an employee of X, I was sent for mission into accomplish a task for another company named Y.

I looked at what the "mission en régie" is with this link: https://www.linkedin.com/pulse/mission-en-r%C3%A9gie-les-avantages-dune-telle-strat%C3%A9gie-crlac/ and it sounds more like a task than a mission in English.

What is the word that english nativenative English speakers use to designatcribe this kind of missiontask?

The word task sounds more natural than mission. Also, I'm unsure what the English equivalent of "mission en régie".

iIn fFrench they have, it's called a "mission en régie".