
Joining KEYES means giving purpose to your talent.
Are you looking for an environment where technology is not an end in itself, but a lever to build a sustainable future? At KEYES, we are not just looking for technical expertise; we are looking for people who share our values.
Do you want to continue your career and grow within one of Belgium’s leading IT companies?
Join KEYES as a Microsoft 365 Specialist!
KEYES supports private and public organizations in Belgium and across Europe in their digital transformation by combining business expertise, technological mastery, and a long-term vision.
We support large enterprises, the public sector, healthcare organizations, and SMEs in all their digital challenges Infrastructure & Cloud Solutions, Cybersecurity Solutions, Business Software Solutions, Mainframe Solutions, Data & AI Solutions, Advisory Solutions, and Staffing Solutions.
More information: www.keyes.eu
THE BACKGROUND
For our customer based in Warsaw, Poland - an European Institution, we are looking for Microsoft 365 Specialist to join a long-term mission in the area of cybersecurity, public sector and law enforcement You will play a key role in managing business architecture, guiding solution designs, and fostering collaboration among business architects and project teams to ensure coherence with the customer’s long-term vision.
YOUR MISSION
Please note that, as the role is hybrid, it requires on‑site presence at the client’s headquarters in Warsaw, and you must be located within a 2–3 hour radius from Warsaw by ground transportation.
Your responsibilities will be as follows:
Administration of O365 Services
Acting as 2nd line of support
Troubleshooting reported incidents and problems and updating status of open requests in the ticketing system in a timely manner
Architecting long term changes to O365 Services
Liaising with other administrators and harmonizing solutions and processes
Contribution to specifications for solutions based on O365 Services
Liaising with developer teams in aligning topologies and configuration of O365 Services according to the need of the project
Maintenance of system documentation
Participate in the development of documentation for new solutions
Reporting on activities
Other specific duties aligned to profile as assigned by ICT Line Manager
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YOUR PROFILE
University degree Bachelor’s degree (mandatory)
English level B2 (must either hold a certificate or be open to obtain one)
At least 2 years (full time) experience at the similar position
Technical knowledge mastered or to be developed together:
Excellent practical knowledge of O365 Services
Practical experience with administering O365 Services
Expert in optimizing, tuning and planning capacity of O365 Services
Knowledge of authentication and authorization mechanisms in O365 Services
Expertise in analysing and troubleshooting large-scale distributed systems
Soft skills:
Very good communication skills (in written and verbal communication)
Very strong sense of responsibility
Accuracy and attention to details
Very good organizational skills
Supportive and helpful personality with co-operative and service oriented attitude
Do you recognise yourself in this description?
Do you want to learn more?
Apply now! You will be contacted shortly.

Face aux enjeux numériques, les décideurs IT, les directions générales et les responsables métiers qui portent l’avenir des petites et grandes organisations belges et européennes ne cherchent pas seulement un prestataire, mais un partenaire capable de combiner vision stratégique globale et solutions sur mesure. De sécuriser vos données, de moderniser vos infrastructures et de renforcer la résilience de votre organisation.
Bienvenue chez KEYES…
Acteur engagé de l’écosystème numérique, nous accompagnons les organisations privées et publiques, en Belgique et en Europe, dans leur transformation digitale.
Notre groupe, qui combine la puissance d’un leader (Top 3 ICT en Belgique) avec la proximité d’un expert local, conçoit et déploie des solutions globales et souveraines, créatrices de performance et d’agilité.
Nos expertises
Présent dans des domaines clés tels que la santé, le secteur public, les grandes organisations et les PME, KEYES s’appuie sur un large éventail d’expertises :
· Cloud : Des solutions hybrides et souveraines pour une infrastructure flexible
· Cybersecurity : Une protection proactive pour garantir l'intégrité de vos systèmes
· Business Software : Des applications métiers pour optimiser vos processus
· Mainframe : La maîtrise et la modernisation de vos systèmes critiques
· Data & AI : Transformer vos données en leviers de décision stratégique
· Advisory : Un accompagnement stratégique pour éclairer vos choix technologiques
· Staffing : Les meilleurs talents IT pour renforcer vos projets
Chez KEYES, nous croyons qu'une technologie responsable est le moteur d'une société plus performante.
Guidée par les enjeux métiers de nos clients et la recherche de valeur durable, nos 3.700 experts ne se contentent pas d'installer des solutions ; ils partagent votre vision, anticipent vos risques et bâtissent, avec vous, le futur numérique de la Belgique.
Unlock the change. Envision the future.