Architect Infrastructure Private Cloud

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 are responsible for advisory, design, validating the technical requirements and associated architecture, for our private cloud solutions, actively leads the evolution to hybrid and public cloud. They are liaising with other entities to develop proposals and high-level architectures to translate our U Flex services. They play an essential role to design 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, respect of “ability to execute” of our operational organisations
• Elaborate the HLD and ensure its validation by the customer

Department related activities:

• Technology watch related to the private cloud solutions (HW, SW) in order to maintain/increase the quality/performance of the services
• Collaborate with the data centre teams to challenge infrastructures, in terms of performance, responsiveness, resiliency, security, scalability and the given case initiate changes
• Ensure that our private cloud infrastructure is designed and implemented in line with the best practises recommended by the vendors, legal constraints (GDPR, PSF, …) and standards (ISO, SOC2, …)
• Support the Compliance team during audits and certifications

Strategy related activities:

• Lead the evolution of the private and sovereign cloud infrastructures / solution
• Collaborate with the Sales/DC teams in order 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 fulfil the requirements to obtain an EU security clearance

Required skills:

• Strong background in OSI layer model
• Network (SW/RT, vlans, subnetting, DHCP, DNS, TLS, efficiency setting IP interfaces, routes on a Linux machine, efficiency with Linux networking tools (ip, tcpdump, dig, netstat, etc.))
• Istio (Service Mesh) Basics (concepts of a Service Mesh, understanding of Envoy Proxy functionalilty)  Security (understanding of FW, WAF, PKI, Proxy, …)
• Storage, Virtualization
• Kubernetes
  • Architecture of a Kubernetes Cluster (controller, scheduler, kubelet, static pods, kube proxy, deployments, daemon-sets, stateful-sets etc.)- understanding of the CSI and the CNI
  • efficiency in the navigation of a Kubernetes resources (kubectl, k9s)
  • understanding of the extensibility of Kubernetes through Custom Resources
  • IAM
• Linux
  • Deep knowledge of Linux (OS management, network administrator tasks, troubleshooting)
  • understanding of Booting sequence (PXE boot)
  • process management and systemd, journalctl
  • Linux containers and namespaces o Use of bash, vim, tmux, ssh
  • Bash or python scripting
• OS Microsoft
• Windows (Active Directory, ADFS, Hyper-V, DSC, GPOs)
• Exchange, O365, AD-DNS, MS SQL, MySQL, Oracle
• Certifications in one or more of those technical domains
• Experience in delivering in a production environment is considered as an advantage
• 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 the explanations to technical as well as non-technical audience
• 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.