Linux Systems Administrator - Intermediate - Financial / Banking

Working in a busy and vibrant Financial / Banking environment, candidates will have a minimum of 2+ years Red Hat Linux systems Administration with some Scripting - Bash / Python - and ideally some SQL / Database knowledge.

Job Overview

You will be providing 1st, 2nd & 3rd line Linux technical support, troubleshooting, and maintenance for Linux-based systems and requires excellent problem-solving abilities, and a customer-centric attitude. You will work closely with highly technical internal teams and end-users to ensure the smooth operation of Linux-based servers and systems. This is a key role with huge scope to learn new skills.

Responsibilities and Duties

• Monitor and support live trading platforms during operational hours.
• Participate in a support rota of early/late shifts supporting exchange hours 7am - 6.30pm to provide 1st and 2nd line support for IT infrastructure.
• Manage and respond to queries/tickets sent to the infrastructure team from both internal teams or external clients.
• Assist in the installation, configuration, and maintenance of Linux-based servers and systems.
• Perform regular system updates, patches, and upgrades to ensure systems are secure and up-to-date.
• Responsible for implementing out of hours changes.
• Assist with the on-boarding of new platforms and undertake final support signoff.
• Assist in the administration of logging and alerting services (Nagios, SolarWinds, etc).
• Assist the Linux or DevOps team with projects as appropriate.
• Identify where we can improve processes and highlight where potential automation improvements can be made.
• Ensure that all policies, procedures, and documentation are kept up to date.

• Out-of-hour’s work will be required on occasion, including ad-hoc datacentre visits.

Required Skills/Experience

• 5+ years working in a Red Hat Linux environment troubleshooting Linux servers and applications. RedHat/Rocky Linux preferable but not essential.

• RHCSA or similar is advantageous but not required.
• Solid understanding of Linux operating systems (file system, best practices in terms of permissions management, management of system logs, services, performance monitoring, systems lifecycle etc.)
• Experience monitoring/optimising system performance, troubleshoot issues, and implement solutions to enhance overall efficiency.
• Scripting on Linux systems bash / python desirable.
• Experience with virtualisation technologies (e.g. VMware)
• Knowledge and experience of application delivery technologies such as TCP/IP, LAN networking (DNS, HTTP(S), Web Sockets, SFTP).
• Prior experience using a ticketing system within a helpdesk environment.
• Experience using and / or administering IT monitoring systems such as Nagios or SolarWinds.
• Experience with a version control system such as GitLab.
• Cloud / AWS experience a bonus.
• SQL database experience a bonus.
• Strong analytical and organizational skills, with passionate attention to detail and a willingness to learn new skills.