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GRNET - Greek Research & Technology Network

Sysadmin Engineer (Senior)

Posted 7 Hours Ago
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Athens
Mid level
Athens
Mid level
The Sysadmin Engineer will be responsible for the design, implementation, and advanced operational support of server, virtualization, and computing/storage solutions. Tasks include managing CI/CD pipelines, monitoring services, improving security, and ensuring high availability of services.
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Description

GRNET S.A. provides Internet connectivity, high-quality e-Infrastructures and advanced services to the Greek Educational, Academic and Research community, aiming at minimizing the digital divide and at ensuring equal participation of its members in the global Society of Knowledge. GRNET provides advanced services to the following sectors: Education, Research, Health, Culture.

We are currently looking for a passionate DevOps Engineer to work on designing, implementing and providing advanced operational support for service, server, virtualization and computing/storage service solutions.

With this position  you’ll have to develop automation for repetitive tasks, manage CI/CD pipelines for a number of services , monitor hosts and services to identify performance issues, organize upgrades for services, improve security of services, while participating in the design and deployment of new services.

You will be part of a talented team of engineers that demonstrate superb technical competency, delivering mission critical services and ensuring the highest levels of availability, performance and security. The team members are professionals, with a mindset to innovate, automate, streamline, and provide value to GRNET and to the users of the offered services.

Requirements

Your tasks

●       Install, configure, test and maintain operating systems, application software and system management tools

●       Proactively ensure the highest availability levels of services

●       Implementation of changes such as deployments, migrations, maintenance

●       Maintain security, backup, and redundancy strategies

Your Profile

●       Proven working experience (at least 3 years) in administration of  the Linux operating system (including security, firewall) and in particular RedHat derivatives and Debian

●       2-year experience in relevant field

●       Experience in configuration Management such as Ansible,

●       Experience in supporting stack with proxying/load balancing based on Apache, Nginx, HAproxy

●       Experience with Continuous Integration and Delivery Tools (eg Jenkins), using github, Docker and Jenkins

●       Good knowledge of networking fundamentals and Network configuration management  (IPv4 & IPv6)

●       Familiarity with RBDMS databases (eg. MySQL, Postgres) or with NoSQL databases (eg. mongodb)

Will be considered a plus:

●       Experience in installation, configuration, management, optimization of Monitoring Systems (Nagios, Icinga etc)

●       Experience in supporting stack with proxying/load balancing based on Apache, Nginx, HAproxy

●       Experience in configuration, management and optimisation of MongoDB and relating Replication, High-Availability procedures

●       Knowledge of Backup-Restore, Replication, High-Availability procedures for relational open source databases

●       Experience with test automation and test-driven development

●       Experience with graphing/metrics/logging tools

●       Working with agile methodologies


Personal Characteristics:

●       Creativity, innovation spirit and team player

●       Dynamic personality, ability to accept challenges and undertake responsibilities

●       Enthusiasm, persistence and willingness to deliver results timely

Benefits

What we offer:

●       Opportunities for International collaborations

●       Opportunities for development of personal skills through training and conferences

●       Modern, friendly and innovative working environment

GRNET is an equal opportunity employer that is committed to diversity and inclusion in the workplace. People with a diverse range of backgrounds are encouraged to apply. We do not discriminate against any person based upon their race, age, color, gender identity and expression, disability, national origin, medical conditions, religion, parental status, or any other characteristics protected by law.

All applications will be treated with strict confidentiality.

Top Skills

Ansible
Apache
Docker
Jenkins
Linux
MongoDB
MySQL
Nginx
Postgres

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