1. System Administrator

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modulus SA

System Administrator

Πλήρης Απασχόληση

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location_iconΧαλάνδρι, ΕΛΛΑΔΑ

when_icon Ongoing

when_icon 2019-05-20

info iconBasic information

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 iconJob Description

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

dot_iconAt least 1 year of experience in a similar position

dot_iconProven experience in installing, configuring and troubleshooting Linux-based environments

dot_iconSolid experience in the deployment and administration of web application stacks (e.g. Apache / NGINX +Python WSGI / PHP FastCGI)

dot_iconExperience with database servers (e.g. MySQL)

dot_iconExperience in setting up mail servers (e.g. Postfix, Dovecot)

dot_iconExperience with logging and monitoring systems (e.g. Syslog, Zabbix)

dot_iconFamiliarity with common backup strategies and backup tools

dot_iconGood scripting skills (shell scripts, Python)

dot_iconWorking experience on virtualization technologies (e.g. KVM)

dot_iconGood understanding of best practices in setting up, securing and monitoring server infrastructure

dot_iconSolid networking knowledge (TCP/IP, Routing, DNS, Firewalls)

dot_iconExcellent organizing, prioritising and multitasking abilities

dot_iconA collaborative team player mind-set

good to have iconΕπιθυμητά Προσόντα

dot_iconBachelor's degree in Computer Science, Engineering or a related subject or equivalent experience

dot_iconExperience as a system administrator of Debian-based systems (installation, configuration, package management, etc.)

dot_iconExperience with cloud technologies and virtualization cluster management tools (e.g. Ganeti)

dot_iconExperience with automation tools and DevOPs best practices

dot_iconPractical knowledge of the Ansible automation tool

dot_iconExperience on MySQL/MariaDB database servers and clusters (e.g. Galera)

dot_iconExperience with LDAP directory services (OpenLDAP)

dot_iconExperience with VoIP technologies and software (SIP, Asterisk, Kamailio, etc)

dot_iconExperience with Dell server hardware

dot_iconFamiliarity with Microsoft Windows server technologies