At Uni Systems, we are working towards turning digital visions into reality. We are continuously growing and we are looking for a Moodle System Administrator to join our UniQue team.
- Regularly update Moodle core, plugins, and themes to ensure security, compatibility, and functionality. Apply security patches promptly to both the Moodle platform and server components (OS, PHP, database).
- Monitor server performance (CPU, memory, disk space) and resolve any performance or uptime issues. Keep the server environment (Linux Ubuntu, well-maintained.
- Manage and optimize the Moodle database (MySQL8) for performance, including routine cleanups and index maintenance. Ensure that automatic backups of both database and files are functioning properly, and perform regular restore tests.
- Tune Moodle settings (caching, PHP limits, web server configuration) to improve performance. Manage cron jobs to avoid overloading the system and ensure they run efficiently.
- Collaborate with ICTU in the implementation and maintenance of security measures, including SSL certificates, firewalls, and server access controls.
- Install, configure, and update third-party or custom plugins. Ensure compatibility with the Moodle version and troubleshoot any plugin-related issues.
- In cooperation with ICTU, monitor and propose optimizations for the Moodle environment on cloud provider, including managing VMs, databases, and storage. Scale resources as needed to ensure performance, and manage disaster recovery services as per policies.
- Develop and maintain automation scripts (e.g., shell scripts, cron jobs) to streamline system tasks such as backups, log rotations, or routine maintenance.
- Monitor the system health, performance, and uptime using EUAA’s monitoring tools. Regularly review Moodle and server logs to detect and resolve issues proactively.
- Ensure the integrity of backups by regularly testing restore procedures, in close collaboration with ICTU.
- Manage the release process for Moodle updates and plugin changes using version control. Ensure that changes are documented and can be rolled back in case of issues.
- Support and troubleshoot existing integrations with third-party tools (SSO, analytics systems/PBI). Handle API integration maintenance when required.
- Manage and update technical documentation for Moodle deployment and maintenance, including installations, upgrades, and troubleshooting. Document server configurations and backup processes on Linux systems, and ensure accuracy by collaborating with IT and LMS teams.
What will you be bringing to the team?
- 3 years of higher education, Bachelor or equivalent and 3+ years of experience after higher education.
- Experience with Apache/Nginx, PHP, and MySQL including database performance tuning and maintenance.
- Moodle plugin management: Installing, updating, troubleshooting plugins, and ensuring compatibility with Moodle versions.
- Moodle API and third-party integrations (to support and troubleshoot existing integrations, not necessarily developing new ones).
- Linux server administration for maintaining the Moodle hosting environment.
- Moodle security: handling authentication and authorization, SSL certificates, firewalls, and system security audits.
- Moodle LMS maintenance, including upgrading, patching, and performance optimization.
- Server administration and databases, particularly PHP, MySQL.
- Moodle system maintenance and administration.
- Managing multi-tenant scalable Moodle architecture.
- Cloud providers (AWS, Azure, etc.) for managing virtual machines, web apps, scaling resources, and disaster recovery.
- Level of English (B2 or higher) is mandatory.
At Uni Systems, we are providing equal employment opportunities and banning any form of discrimination on grounds of gender, religion, race, color, nationality, disability, social class, political beliefs, age, marital status, sexual orientation or any other characteristics. Take a look at for more information.
Top Skills
What We Do
Uni Systems, a member of Quest Group, has been a reliable ICT partner to companies and organizations in the European market for over 60 years. We are the first IT company founded in Greece, in 1964, and we have been supporting our clients ever since. Trusting customers, extensive solutions offering, strong partnerships and experienced people, those are the main grounds for Uni Systems’ rapid expansion of operations across geographies and industries.
With more than 1450 specialized ICT professionals, established presence in more than 20 countries, and branches and subsidiaries in the heart of the European Union (Athens, Barcelona, Brussels, Bucharest, Luxembourg and Milan), we are effectively addressing the needs of European and International organizations and institutions and delivering value-added integrated solutions to our customers.
Through our strong industrial vertical expertise, supported by the range of our horizontal solutions, we hold a substantial and successful track record in the delivery and implementation of large-scale, mission-critical projects in the sectors of Banking & Finance, Enterprise & Utilities, Government, and Telecommunications, as well as in EU Institutions and Agencies.
Participations in real commercial implementations of best practices (i.e. ITIL, RUP, PRINCE2, PMI), has provided our people with significant experience, unique know-how and proven capability in designing, implementing and successfully supporting complex ICT projects, through a range of solutions and business areas.
At Uni Systems, we support innovation, and we have been investing in the European and National research ecosystem. Our Research and Innovation (RDI) department has been successfully bidding and winning a series of research programs in promising technological areas, such as 5G, AI in Health, and Blockchain in Governance.
Enabling our clients' digital transformation journey is our passion and we remain strongly committed to it.