Datacenter Infrastructure Architect

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Datacenter Infrastructure Architect

Publiée le 12/01/2026

Proximus Luxembourg

• Bertrange
• Informatique Consulting
• Informatique Infrastructure / Système / Réseau

Temps de travail

Temps plein

Type de contrat

CDI

Langues parlées

EN

Niveau d'étude

Bachelor / Licence

Master

Télétravail

Télétravail possible

About Proximus Luxembourg
Proximus Luxembourg is a leading historical player in the ICT & Telecoms markets. Proximus Luxembourg addresses both residential and business markets through its commercial brands Tango, Proximus NXT and more recently Codit.

With PSF support status, the company has almost 750 employees. All these experts share a passion for digital technology, a spirit of openness and innovation, and a desire to simplify, connect and make their customers' personal and professional activities ever more secure.

Proximus Luxembourg is actively contributing to the acceleration of Luxembourg's digitalisation and its economic influence through the development of connectivity, resilient infrastructures and 5G, as well as innovative technologies such as Blockchain, Artificial Intelligence, Machine Learning and IoT.

Proximus Luxembourg is a subsidiary of the Proximus group (Euronext Brussels: PROX), provider of digital services and communication solutions operating in the Belgian and international markets.

Your Mission
The infrastructure architect is responsible for the design of complex infrastructures in line with the business strategy, service offering and customer requirements. Infrastructure Architects fulfil a critical role and are responsible for advisory, design, validating the technical requirements and associated architecture for our private cloud solutions. They actively lead the evolution to hybrid and public cloud. They liaise with other entities to develop proposals and high-level architectures to translate our U-Flex services. They play an essential role in designing solutions aligned with standards and the "ability to execute" of our operational organizations.

Customer/business Project Related Activities

• Define technical standards and procedures facilitating the onboarding of new customers into our solutions.
• Contribute to the definition of business cases, adoption programs, technical and operational readiness assessments to facilitate the onboarding.
• Support the Project Manager to develop the project plan in order to ensure a smooth systematic onboarding process, risk identification and mitigation, and respect of the "ability to execute" of our operational organizations.
• Elaborate the HLD and ensure its validation by the customer.
• Ensure deployment is executed with respect to security and data center standards and support the engineers when required.

Department Related Activities

• Technology watch related to private cloud solutions (HW, SW) in order to maintain/increase the quality/performance of the services.
• Collaborate with the data center teams to challenge infrastructures in terms of performance, responsiveness, resiliency, security, scalability and, if necessary, initiate changes.
• Ensure that our private cloud infrastructure is designed and implemented in line with the best practices recommended by the vendors, legal constraints (GDPR, PSF, …) and standards (ISO, SOC2, …).
• Support the Compliance team during audits and certifications.
• Develop policies, procedures, and standards.
• Ensure that the data center is secure, reliable, and can meet the organization's needs.

Strategy Related Activities

• Lead the evolution of private and sovereign cloud infrastructures/solutions.
• Collaborate with the Sales/DC teams to evaluate/select the best products to meet business objectives while ensuring uniformity/continuity.

Your Profile

• Education: BAC +5 in computer sciences or equivalent by experience.
• At least 3 years of professional experience in a similar position.
• At least 5 years of technical experience in the concerned domain (Senior Level).
• Fluent in French and English is mandatory.
• Must fulfill the requirements to obtain an EU security clearance.

Required Skills

• Strong background in OSI layer model.
• OS Microsoft/Linux.
• Exchange, O365, AD-DNS, ADFS, MS SQL, MySQL, Oracle.
• Good technical knowledge of different technologies: Network (Cisco ACI, Nexus), Security (Checkpoint, Palo Alto, F5), Storage (Netapp), Virtualization (VMWare, OLVM). Very good knowledge of routing protocols and Cisco ACI principles.
• Familiar with containerization technologies and architectures (OpenShift, Kubernetes, …).
• Certifications in one or more of those technical domains.
• Experience in delivering in a production environment is considered an advantage.
• Strong organizational skills and analytical ability.
• Solid capacity to produce high-level as well as complex technical documentation (LLD).
• Curious and motivated to assimilate new technologies and certifications.
• Strong interpersonal and communication skills, capacity to justify purchases, strategies.
• Able to adapt explanations to technical as well as non-technical audiences.
• Team player with strong interpersonal, analytic, communication and leadership skills.

Our Offer
A professional and stimulating work environment in the IT & telecom sector. Multiple career opportunities within the Proximus Group at national and international level, cutting-edge training in new technologies, a wealth of recognized expertise. We also offer an attractive salary package and many other benefits.

Our company is an equal opportunity employer, valuing diversity in all its forms. We firmly believe that each individual brings a unique richness to our teams, and we are committed to creating an inclusive environment where every voice counts.

If at the end of the process your application is successful, you will be asked to provide an extract from your criminal record. Your personal information will be handled in compliance with applicable data protection laws.