Infrastructure Operations Engineer

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. Our high-performing, dynamic, and collaborative environment fosters professional growth at every stage.

Quento Technologies S.A. seeks a highly motivated and experienced Infrastructure Operations Engineer to join our Infrastructure Operations team supporting a large-scale private AI cloud platform.

This role focuses on day-to-day platform operations, incident resolution, operational support, and the successful transition of infrastructure and platform services into our Operations team. You will work closely with Platform Engineering, Security, and Architecture teams to ensure the availability, stability, and operational readiness of critical AI infrastructure.

Your responsibilities will entail:

• Participate in knowledge transfer, shadowing, and service transition activities;
• Support the successful handover of infrastructure and platform services into the Operations team;
• Investigate and resolve infrastructure, platform, and data center incidents;
• Perform day-to-day operational activities across compute, storage, networking, and cloud infrastructure;
• Execute operational procedures, maintenance activities, and platform upgrades
• Monitor platform health, capacity, availability, and performance;
• Support backup, restore, and disaster recovery activities;
• Maintain operational documentation, runbooks, and standard operating procedures;
• Contribute to automation initiatives and continuous operational improvement;
• Collaborate with Platform Engineering, Security, and Operations teams to improve platform reliability and operational efficiency;
• 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;
• 3–5 years of experience in infrastructure, cloud, or platform operations;
• Experience supporting enterprise or mission-critical infrastructure;
• Strong Linux (Ubuntu) system administration skills;
• Hands-on experience with Kubernetes;
• Experience troubleshooting infrastructure incidents in production environments;
• Experience working within operational support and change management processes;
• Strong analytical, troubleshooting, and communication skills.

Technical Knowledge

Essential

• Ubuntu Server / Linux;
• Kubernetes;
• Prometheus and Grafana;
• Networking fundamentals;
• Backup and recovery concepts;
• Storage fundamentals (Ceph experience is desirable).

Desirable

• Canonical OpenStack;
• MAAS and Juju;
• Terraform and Ansible;
• Azure DevOps or equivalent;
• Elasticsearch, OpenSearch, or Loki;
• NVIDIA GPU infrastructure.

Preferred Qualifications

• Knowledge of ITIL and operational support practices;

• Experience with Bash or Python scripting;
• Experience working in 24x7 enterprise operations;
• Experience working in regulated or highly available environments.

Working model: Participation in an on-call support rota and planned out-of-hours maintenance activities will be required.

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 - QUALCO Group, before the submission of your application.