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Senior Systems Administrator

Spain - Madrid | Hybrid💼 Full-time🗓 2026-09-30 → 2026-10-01

Core

Design, build, and maintain scalable Linux infrastructure (on-premise and cloud) for a Contact Center SaaS platform, ensuring high availability and performance.

Role type

Senior Systems Administrator (Linux/Cloud/Network)

Builds

Scalable Linux infrastructure, virtualization environments, containerized services, and network security for a CCaaS product.

Domain

Telecommunications / Contact Centers / Cloud Infrastructure

Required skills

Linux administration, Network administration, VMware virtualization, Docker containerization, Firewall management, MySQL performance tuning, Shell scripting

Preferred skills

Kubernetes, SIP protocol, Asterisk/FreeSWITCH, Wireshark, PHP/Go/C++ programming, English

Technologies

Linux, AWS, Google Cloud, Azure, VMware, Docker, MySQL, Shell, Fortinet, Sophos, Cyberoam, Kubernetes, Wireshark

Responsibilities

Administer and update Linux infrastructure (on-premise and cloud), design and implement scalable architecture improvements, deploy systems on servers and cloud, manage VMware and Docker environments, administer networks and firewalls, optimize MySQL database performance, automate tasks via Shell scripting, visit data centers in Madrid for interventions.

Seniority

Senior, hands-on IC

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