System Architect – Cloudian S3 Storage - C

About Proximus NXT

Proximus NXT Luxembourg supports all organizations in their digital transformation, by providing holistic ICT & Telecommunication solutions, as well as tailored managed services. With our partners and customers, we co-create opportunities and enable growth in a secure and sustainable manner. As a result of our unique expertise in next-gen IT services, mobile and advanced connectivity, we help our customers achieve their ambitions and realize their vision.

Together with them and our partners we implement sovereign and trusted solutions that make people work smarter.– www.proximusnxt.lu

Your mission :

Overview: We are seeking a skilled and visionary Cloud Storage Architect specializing in Cloudian and AWS S3 ecosystems (Object Store). In this role, you will not just manage infrastructure; you will architect, build, and automate scalable Bucket-as-a-Service (BaaS) solutions tailored for direct customer consumption.You will bridge the gap between core storage infrastructure, modern automation, and customer-facing delivery. Working closely with our Centers of Excellence (COE), you will ensure our S3-compatible object storage systems are secure, high-performing, API-driven, and seamlessly integrated into automated deployment pipelines.

Key Responsibilities:

• Service Design & Productization: Architect and build secure, multi-tenant Cloudian S3 storage solutions designed to be consumed directly by end-customers as a service.
• Infrastructure-as-Code & Automation: Develop, implement, and maintain automation pipelines using Terraform and Ansible to fully automate storage provisioning, tenant onboarding, and lifecycle management.
• Storage Architecture & Management: Design and manage enterprise-scale Cloudian S3 clusters, ensuring high availability, peak performance, and efficient data distribution.
• Traffic & Performance Optimization: Utilize HyperBalance to optimize load distribution across storage nodes, maximizing throughput and eliminating bottlenecks for customer applications.
• AI-Powered Monitoring: Proactively monitor system health, capacity, and analytics using HyperIQ, Prometheus, and Grafana to ensure stringent customer SLAs are met.
• Data Protection & Resiliency: Design robust backup, multi-region replication, and disaster recovery strategies using S3-compatible object storage systems.
• Security, Compliance & Multi-Tenancy: Implement strict identity and access management (IAM), bucket policies, encryption protocols (at rest and in transit), and multi-tenant isolation to safeguard customer data.
• Cross-Functional Integration: Collaborate with DevOps, Network, and Cloud teams to integrate S3 object storage with modern cloud-native tools, applications, and CI/CD pipelines.

Your profile :

Required Skills & Experience:

• Core Experience: 810+ years in storage engineering, cloud infrastructure, or a similar role, with a heavy emphasis on AWS S3 APIs and distributed object storage systems.
• Automation Expertise: Strong experience treating infrastructure as code (IaC) using Terraform and configuration management via Ansible to build self-service infrastructure. N8N for orchestration and Cycloid as catalogue of service exposure.
• Service Delivery Mindset: Proven track record of designing storage solutions that are exposed via APIs or self-service portals for internal or external customer consumption.
• Cloudian Ecosystem: Hands-on experience or deep technical familiarity with Cloudian HyperStore, HyperBalance (load balancing), and HyperIQ (analytics).
• Protocols & Integration: Deep understanding of REST APIs, S3 API compliance, IAM policies, and networking protocols.
• Monitoring & Observability: Proficiency with modern observability stacks (e.g., HyperIQ, Prometheus, Grafana) for capacity planning and performance tuning.
• Security & Compliance: Strong knowledge of data security, including KMS, TLS/SSL, object locking (WORM), and compliance standards.
• Soft Skills: Strong communication skills with the ability to translate complex technical storage architectures into clear, user-centric service offerings.

Preferred Qualifications:

• Demonstrated experience with Cloudian HyperStore, HyperBalance, HyperIQ, or similar distributed storage platforms.
• Knowledge of hybrid cloud storage setups (integrating on-prem and cloud storage solutions).
• Experience with containerized environments like Docker and Kubernetes (using object storage with Kubernetes).
• Familiarity with data migration and replication strategies for large-scale storage environments.
• Experience building custom API wrappers or integrating storage provisioning into IT Service Management tools (like ServiceNow).
• Knowledge of hybrid cloud storage setups (seamless replication between on-remises Cloudian and public AWS S3).
• Relevant certifications (e.g., AWS Certified Solutions Architect, Cloudian Certified Expert, or advanced Terraform/Ansible certifications).

Requirements:

• EU citizenship.
• Fluency in English (written and spoken) is required; proficiency in any other European language is a plus.

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.