Mission freelance Red Hat Enterprise Linux System Administrator

The task scope covers:
Participation in the projects with the other teams (developers, software deploy- ment team, network, enterprise architecture team, IT security team)
Design of new applications based on Linux servers and/or containers (devops)
Study of solutions on the market to continuously improve the computer and stor- age infrastructure at the GSC

Systems operation activities, including setup, installation, tuning, troubleshoot- ing, monitoring and maintenance (including management of firmware patches) of the Linux servers (circa 600):
- installing, configuring and hardening new Linux RedHat servers (physical and virtual)
- updating the image for the automated server deployment manage and use the open-source infrastructure monitoring for the Linux RedHat (RH) servers + troubleshooting of OS errors
- perform security patching
- manage RH Satellite for distributing packages
- manage RH idM for the admin users on the servers
- manage application service accounts
- manage server certificates and configure SSH keys for non-interac- tive access
- manage servers via Ansible
- manage containers both on Docker hosts and on Kubernetes clus- ters
- manage the OS of Oracle physical clusters

- Incident and Problem Management activities (e.g., fault analysis, diagnosis and resolution)
- Elaboration of operational guidelines and procedures for the management of the Linux servers and related environment
- Change and Configuration management activities (e.g., assessment, scheduling, implementation, review)
- Specification of solutions for operations: Specification of teams (number of per- sons, competencies), specification of management systems (technology, archi- tecture), specification of any other tools needed in operations such as Configu- ration Management Database, Knowledge System, etc.
- Design of management systems and other tools: design of architecture, tech- nical evaluation of alternatives offered on the market, conduct of proof of con- cept, testing in pre-production environment
- Implementation of new solutions for operations: migration of new systems in production environment, definition of procedures, training of operators for new procedures, development of tools (customisation or configuration of commer- cial tools, development of small tools such as websites, databases, etc.)
- Evaluation of quality and efficiency of operations by definition and implementa- tion of metrics; periodical follow-up of metrics; proposal of measures to improve quality and/or efficiency of operations