Solution Architect (Infrastructure)

At Quento Technologies S.A., the ICT arm of the Qualco Group, we deliver comprehensive and innovative solutions across AI, Digital Engineering, Cloud, and Cybersecurity, helping businesses accelerate digital transformation. With a presence in Greece, Luxembourg, and Belgium, and backed by the expertise of the Qualco Group, we combine deep technical knowledge with strategic partnerships to support business growth.

At Quento Technologies S.A. we empower our people to innovate and lead in delivering transformative ICT solutions to our clients worldwide.

Quento Technologies S.A. seeks a highly motivated and experienced a Solution Architect (Infrastructure) to join our Architecture team supporting a large-scale private AI cloud platform.

This role focuses on designing and governing infrastructure solutions across compute, storage, networking, virtualization, Kubernetes, AI infrastructure, and platform services. The successful candidate will work closely with Platform Engineering, Infrastructure Operations, Security, and Project teams to deliver scalable, secure, and operationally ready solutions from design through implementation.

Your responsibilities will entail:

• Design end-to-end infrastructure and platform architectures aligned with business and technical requirements;
• Produce and maintain High-Level Designs (HLDs), Low-Level Designs (LLDs), architecture diagrams, and technical documentation;
• Translate business requirements into scalable, resilient, and secure infrastructure solutions;
• Define infrastructure standards, reference architectures, and technical design principles;
• Review and validate infrastructure designs, implementation plans, and technical deliverables;
• Collaborate with Engineering and Operations teams to ensure solutions are operationally ready;
• Support infrastructure sizing, capacity planning, and technology selection;
• Ensure solutions align with security, resilience, and operational requirements;
• Participate in architecture governance, technical design reviews, and change advisory activities;
• Support technical workshops, proof of concepts, and continuous platform improvements;

• Ensuring that all activities and duties are carried out in full compliance with regulatory requirements and supporting the continued implementation of the Group Anti-Bribery and Corruption Policy.

• University degree in Computer Science, Engineering, or a related field;
• 8+ years of experience in infrastructure, cloud, or platform engineering;
• 3+ years in a Solution Architect, Infrastructure Architect, or Technical Lead role;
• Experience designing enterprise-scale infrastructure and private cloud platforms;
• Strong knowledge of Linux, Kubernetes, virtualization, networking, and storage technologies;
• Experience with high availability, disaster recovery, backup, and business continuity;
• Experience working across multidisciplinary technical teams;
• Strong analytical, documentation, and stakeholder management skills.

Technical Knowledge

Essential

• Canonical OpenStack
• Canonical Kubernetes
• Ubuntu Server / Linux
• Networking fundamentals
• Storage fundamentals (Ceph experience is desirable)
• High Availability and Disaster Recovery
• Infrastructure architecture and design
• Infrastructure sizing and capacity planning

Desirable

• MAAS and Juju
• Terraform and Ansible
• Azure DevOps or equivalent
• Prometheus and Grafana
• Elasticsearch, OpenSearch, or Loki
• Keycloak, Vault, PAM, and SIEM solutions
• NVIDIA GPU infrastructure
• AI platform architecture

Preferred Qualifications

• Experience designing AI or GPU infrastructure platforms.
• Knowledge of enterprise architecture and infrastructure governance.
• Experience with infrastructure automation and Infrastructure as Code.
• Familiarity with ISO 27001 or ISO 22301.
• Experience working in regulated or highly available environments.
• Preferred Certifications
• TOGAF Foundation or Practitioner
• Certified Kubernetes Administrator (CKA) or equivalent
• Linux certification (RHCSA, LFCS, or equivalent)
• HashiCorp Terraform Associate
• Cloud architecture certification (Azure, AWS, GCP, or OCI)

Your Life @ Qualco Group
On top of challenging work environment, we are offering:

💸 Competitive compensation, ticket restaurant card, and annual bonus programs
💻 Cutting-edge IT equipment, mobile and data plan
🏢 Modern facilities, free coffee and beverages, indoor parking, and company bus
👨‍⚕ Private health insurance, onsite occupational doctor, and workplace counselor
🏝️ Flexible working model, hybrid benefits & home equipment benefits
🤸‍♂️ Onsite gym, wellness facilities, and ping pong room
💡 Career and talent development tools
🎓 Mentoring, coaching, personalized annual learning and development plan
🌱 Employee referral bonus, regular wellbeing, ESG and volunteering activities

Your race, gender identity and expression, age ethnicity or disability make no difference in Quento Technologies S.A. We want to attract, develop, promote, and retain the best people based only on their ability and behavior.

Disclaimer: Quento Technologies S.A. collects and processes personal data in accordance with the EU General Data Protection Regulation (GDPR). We are bound to use the information provided within your job application for recruitment purposes only and not to share these with any third parties. For more details on the processing of your personal data during the Recruitment procedure, please be informed in the Recruitment Notice, before the submission of your application.