1. System Administrator

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modulus SA

System Administrator

Πλήρης Απασχόληση

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location_iconΧαλάνδρι, ΕΛΛΑΔΑ

when_icon 2019-05-20

salary_icon -

info iconΒασικές Πληροφορίες

Modulus SA, following an ever-ascendant course in the field of next generation telecommunications, is able to offer innovative services which cover ideally your business' communication needs.

By exploiting new cloud technologies and attracting the most specialized staff, we create all the conditions to be able to meet your current and anticipate your future needs. Our priority is to create a new experience in telephone communication, free of conventional telephony constraints. By adopting the most sophisticated technologies and developing infrastructures of high standards and reliability, we seek excellence in all areas, always on the basis of your own benefit.

Our goal is to provide technically sound solutions that directly contribute to reducing the operating costs of your business and are immediately adaptable to your ever changing demands. Based on internationally widespread technologies and open standards, we ensure the interoperability of our services and protect your business from encapsulation in solutions with an "expiration date".

Respecting the peculiarities of each business and its people, we seek to establish relationships based on honesty, understanding and devotion. Discover the diversity of modulus, contact us and learn how you can benefit from our solutions with minimal modifications and investments.

We are looking for an ambitious Sysadmin to join a team of experienced engineers, ensuring the trouble-free operation of our expanding, Linux-based infrastructure. 

job description iconΑρμοδιότητες

The ideal candidate will be able to deploy, configure, maintain and monitor systems in our private cloud infrastructure, aiming to the highest levels of availability, performance and security.  


  • Manage and monitor systems and infrastructure
  • Install, configure, test and maintain operating systems, application software and system tools
  • Troubleshoot and resolve hardware and software problems on servers and networks
  • Develop and monitor backup procedures and scripts
  • Investigate system logs for troubleshooting issues and discovering monitoring patterns
  • Manage user accounts and system policies
  • Automate system administration tasks
  • Collaborate with developers to resolve performance-related issues on applications


  • A pleasing and friendly environment with great office amenities
  • Flexible working hours
  • Private health insurance
  • You will collaborate with experienced engineers, willing to help you expand your knowledge and develop your skills
  • You will be part of an innovative tech company, working on cutting-edge technologies, with great room for experimentation and research
  • Our rapidly growing company will offer you great opportunities for career growth
job requirements iconΑπαραίτητα Προσόντα
  • At least 1 year of experience in a similar position
  • Proven experience in installing, configuring and troubleshooting Linux-based environments
  • Solid experience in the deployment and administration of web application stacks (e.g. Apache / NGINX +Python WSGI / PHP FastCGI)
  • Experience with database servers (e.g. MySQL)
  • Experience in setting up mail servers (e.g. Postfix, Dovecot)
  • Experience with logging and monitoring systems (e.g. Syslog, Zabbix)
  • Familiarity with common backup strategies and backup tools
  • Good scripting skills (shell scripts, Python)
  • Working experience on virtualization technologies (e.g. KVM)
  • Good understanding of best practices in setting up, securing and monitoring server infrastructure
  • Solid networking knowledge (TCP/IP, Routing, DNS, Firewalls)
  • Excellent organizing, prioritising and multitasking abilities
good to have iconΕπιθυμητά Προσόντα
  • Bachelor's degree in Computer Science, Engineering or a related subject or equivalent experience
  • Experience as a system administrator of Debian-based systems (installation, configuration, package management, etc.)
  • Experience on MySQL/MariaDB database servers and clusters (e.g. Galera)
  • Experience with automation tools and DevOPs best practices
  • Experience with cloud technologies and virtualization cluster management tools (e.g. Ganeti)
  • Experience with Dell server hardware
  • Experience with LDAP directory services (OpenLDAP)
  • Experience with VoIP technologies and software (SIP, Asterisk, Kamailio, etc)
  • Familiarity with Microsoft Windows server technologies
  • Practical knowledge of the Ansible automation tool