Senior DevOps 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. Quento Technologies S.A. seeks a highly motivated and experienced Senior DevOps Engineer toown, operate, and continuously improve our cloud infrastructure on GCP. You will be responsible for daily operations, deployments, monitoring and security across our Linux-based platform, enabling reliable and scalable application delivery.

Your responsibilities will entail:

• Administer and troubleshoot Ubuntu Linux servers, including user management and system hardening across production, staging, and UAT environments;
• Manage and deploy Docker-based applications on GCP VMs, including container networking and lifecycle management;
• Design, build, and maintain GitHub Actions CI/CD pipelines supporting rolling and blue/green deployment strategies across all environments;
• Provision and manage cloud infrastructure using Terraform and automate configuration management with Ansible;
• Set up, configure and operate OpenVPN for secure network access and user management;
• Monitor systems, set up alerting, and build dashboards using New Relic and GCP Monitoring;
• Own incident response end-to-end: detection, containment, resolution and post-mortem;
• Manage Managed MySQL, undertake monitoring duties, backups, access control and basic troubleshooting;
• Enforce security best practices with IAM roles, access policies, secrets management and SSL/TLS certificate lifecycle;
• Write and maintain Bash scripts for automated tasks, cron jobs and deployment workflows;
• 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.

Requirements

• University degree in IT or related field;
• 4-5 years of professional DevOps or infrastructure engineering experience
• Hands-on experience with Linux server administration on Ubuntu in production environments
• Proven experience running Docker-based deployments on Linux VMs
• Solid experience with GCP - compute, networking, storage, and IAM
• Demonstrated experience designing and operating GitHub Actions CI/CD pipelines, including build, test, deploy workflows
• Practical knowledge of Terraform for infrastructure-as-code provisioning
• Experience with Ansible for configuration management and automation
• Strong Bash scripting skills for automation, cron jobs and deployment tasks
• Experience with New Relic: installation, alerting, and dashboard configuration
• Sound knowledge of IAM roles, credentials management and SSL/TLS certificate issuing, renewal and management
• Experience working in an Agile environment, including sprint-based delivery, standups and close collaboration with development teams
• Knowledge and experience on the following would be considered as asset: Kubernetes, AWS or Azure in addition to GCP, Python scripting skills, MySQL performance tuning.
• Interest in GCP cost optimization and cloud resource efficiency is desirable.
• Comfortable working autonomously and owning infrastructure independently from day one

Benefits

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).