adjective

feeling or showing confidence in oneself or one’s abilities or qualities.

we require outgoing, confident people able to approach large groups

self-assured,assured,sure of oneself,self-confident,positive,assertive,self-assertive,self-possessed,believing in oneself,self-reliant,poised,filled with aplomb,cool,cool-headed,calm,collected,and collected,phlegmatic,level-headed,composed,nonchalant,unperturbed,imperturbable,unruffled,impassive,serene,tranquil,relaxed,at ease,unflappable,together,unfazed,laid-back,nonplussed,equanimous

noun

a confidant.