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Linux System Engineer / Nextcloud Administrator

Solvex Solutions — Germany · Posted ~1 day ago

Senior Contract Hybrid

Skills

Linux system administration Nextcloud administration Linux security hardening SELinux firewalls SSH systemd Apache PHP MySQL/MariaDB system monitoring troubleshooting backup and recovery Bash scripting Linux Nextcloud MySQL MariaDB Bash cron

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Summary ✨ AI‑Generated

An experienced Linux systems professional is sought for a freelance role supporting a secure data-exchange platform in a regulated environment. The position combines Linux administration, Nextcloud operations, security hardening, monitoring, troubleshooting, patching, backup and recovery, and Bash automation. The engagement is primarily remote with limited onsite work and offers potential for extension.

Highlights

Freelance engagement with a mostly remote setup, a defined project duration with extension potential, and technically challenging work operating and securing a critical platform in a regulated environment.

Description

Freelance Opportunity: Linux System Engineer / Nextcloud Administrator Location: Bonn, Germany – approx. 8 days onsite, otherwise mainly remote Start Date: 14 September 2026 Duration: Until 31 December 2026 + option to extend Language: Very good German required Contract: Freelance Environment: Public sector / regulated IT We are looking for an experienced Linux System Engineer / Nextcloud Administrator to operate, support, secure and continuously develop a Nextcloud-based data exchange platform in a regulated environment. Key Responsibilities: Administer and operate productive Linux systems and NextcloudConfigure and harden Linux systemsManage SELinux, firewalls, SSH, systemd, kernel and cronOperate and support Apache, PHP and MySQL/MariaDBMonitor systems and troubleshoot complex platform and application issuesImplement feature and security patchesDesign and maintain backup, installation and recovery proceduresDevelop Bash scripts for recurring operational processesMaintain technical, operational and system documentationImplement BSI IT-Grundschutz and internal security requirementsSupport Nextcloud Web and Windows Desktop Client users Required Skills: Linux AdministrationNextcloudApachePHPMySQL / MariaDBSELinuxFirewall, SSH and systemdMonitoring and troubleshootingBash scriptingPatch managementBackup and recoveryBSI IT-GrundschutzTechnical documentation Nice-to-Have: Checkmk, Elastic Stack, ClamAV, HashiCorp Vault, Redis, HAProxy, Ansible, K3s, Container Registry, HTML, CSS and JavaScript. Apply Now!