Vocabulary that you ABSOLUTELY need to know and use correctly, both in your dissertation and at the exam :

un mémoire = a dissertation / a thesis  (VS. a memorandum = un mémo / une note de service  VS.  a memoir = les mémoires / l'autobiographie  VS.  a memory = un souvenir)
une société (commerciale) / une entreprise = a company / a firm  (VS. a society = une association ; une société [composée de tous les individus qui partagent un espace géographique et culturel])
une alternance = a work-study program / a sandwich course
un alternant = a student on a work-study program / a student on a sandwich course
un stagiaire = an intern
un stage = an internship 
une / cette formation = a training program / a training course  / this training program / course
ma formation (=tout ce que j'ai appris) = my training / my studies and work experience
embaucher = to hire (VS. to engage = intéresser, attirer, impliquer)
résumer = to sum up (VS. to resume = reprendre qch que l'on a intérrompu)
apprendre (de qq'un/ qch) = to learn (VS. to teach = apprendre à qq'un / enseigner)
s'investir = to get engaged in sth / to (really) get involved in sth / to put a lot of effort in sth  (VS.  to invest = investir [de l'argent])
promotion (=année d'études) = school year (VS. promotion = avancement professionnel, promotion publicitaire)
le siège d'une entreprise = the company headquarters / the corporate head office (VS. a seat = un siège [pour s'asseoir]  VS. a site = un lieu, un endroit)
locaux / site (d'une entreprise) = (company) premises
le service IT / comptabilité (d'une entreprise) = the IT / accounts department  (VS.  a service = un service [fourni])
actuellement = currently / presently / at the moment (VS. actually = en fait, en effet)
global = general / overall (VS. global = mondial)
automatiser = to automate
sécuriser = to secure / to make secure / to make safe
fonctionnement = functioning / operating / working
analyser = to analyse
une analyse = an analysis (plural : analyses)   
regarder qch = to look at sth (VS. to see sth = voir qch)
trouver = to find (VS. to found = fonder, créer)
un canal (de communication, TV) = a channel  (VS. a canal = un canal de navigation)
l'état (d'avancement d'un projet, etc.) = the state  (VS. a status = un statut)
réaliser (un projet, une tâche, qch de concret) = to make / to carry out / to do / to execute  (VS. to realise = se rendre compte de, comprendre)
un logiciel = a software application / program 
numérique = digital
un prestataire / un fournisseur de services = a (service) provider
domaine (professionnel / d'expertise) = field / field of expertise / line of business
durer = to last  (VS. during = pendant)
choisir = to choose  (VS. a choice = un choix)
perdre = to lose (VS. a loss = une perte)
arriver (= se passer) = to happen / to occur  (VS. to arrive = arriver quelque part)

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