Description
Senior DevOps Engineer - Linux Systems Administrator required for a 12-month contract based in Dublin.
You will provide guidance on the design, build and maintenance of the next generation of systems.
You should have an automation and DevOps mind set.
You should have strong fluency in Bash and Python and you should be able to demonstrate where you have written complex scripts and programs from scratch for a variety of purposes.
You should have demonstrable experience in securing Linux based Webservers from the OS to Apache configuration and be aware of the evolving threat vectors involved in hosting sites on the cloud and internally.
You will be expected to help to design and deliver continuous integration and delivery systems. Ideally, you will have experience in container and microservice environments.
You will have had experience in creating, maintaining and securing web applications in a public cloud environment.
You must have expert knowledge of:
Firewalls, Iptables, firewalld, Fail2Ban, OSSEC or equivalent
Hardening Servers and blocking and monitoring unwanted traffic
Denial-Of-Service (DOS) protection (DOS deflate or equivalent)
Nagios or equivalent
Scaling Web applications using Squid server or equivalent, Apache and web caching
Implementing/improving robust failover and load balancing
Fault detection, isolation, resolution, log analysis and root cause analysis
Implementing deployment to production pipelines
Subversion and other development support tools
Developing and maintaining scripts for systems automation
Providing systems administration for Linux based systems
Linux/Unix systems admin skills (particularly Centos/Redhat)
Document planning, processes and procedures.
Performing out of hours upgrades (normally monthly)
Supporting 24x7 systems
Operating within a public cloud based environment
TCP/IP fundamentals (DNS, HTTP, SMTP, SSH, DHCP etc.).
Strong exposure to web security and web server configuration, including Apache
Mail System Administration
Writing and troubleshooting bash scripts