Job Summary

Responsibilities

Effectively install, configure, operate, and maintain Linux Systems (RHEL/CentOS / Fedora) software and related infrastructure 
Patch updates on OS and Applications, maintain package sources and compliance reports and patch scheduled deployments 
Maintain and improve the security posture and hardening of the Linux environments, vulnerability remediation deployments 
Automate managing users, groups, password policies and other user configurations within the NetSec department requirements 
Automate identification, categorisation, sensitivity and ownership of Linux OS and Software Assets 
Perform continuous health monitoring, improve the stability/performance of the Linux Systems and troubleshoot issues that may arise 
Evaluate new technologies, review/ improve current ones 
Perform backup/restore/rollback and disaster recovery operations in Linux Infrastructure environments 
Communicate with other teams for mitigation of any issues with managed environments 
Create, update and organise technical documentation and knowledge base for the team and other departments 
 

Requirements:

3+ years of Linux Systems administration; deep knowledge and experience with RedHat based Operating Systems 
Working experience with shell command line usage, scripting, using automation tools, experience with Ansible are considered as an advantage 
Hands-on experience in administering, provisioning, configuring, tuning and monitoring of application web servers (Apache / Nginx), databases (SQL and NoSQL), logging (ELK) and HA systems (AWS ELB / HAProxy) 
Experience with the best practices of virtualised and/or containerised environments (VMware / VirtualBox / Docker) 
Experience with Content Delivery Networks (AWS CloudFront / Akamai Ion) 
Experience with technologies and methodologies of CI/CD processes (GitLab / Jenkins) 
Self-driven, with ability to take ownership of issues and follow them through to complete resolution 
Ability to use own initiative, prioritise tasks and work either independently and / or within a team 
Strong technical documentation abilities 
Excellent verbal and written English communication skills