Linux System Administrator

Cognizant; London Colney; On-site; GBP 40,000 - 80,000; Full time

Job summary

An innovative firm is seeking a skilled Linux Administrator to join their dynamic team. This role involves maintaining on-premises data centres, ensuring high availability and security, and implementing effective backup strategies. You will collaborate with internal teams and vendors while documenting configurations for audit purposes. Ideal candidates will have experience with Linux, enterprise storage, and automation tools, along with a passion for delivering excellence. Join a forward-thinking company that values creativity and collaboration, offering ample opportunities for career development in a supportive environment.

Qualifications

• Experience running and maintaining on-premises data centres.
• Knowledge of IP networking, DNS, and firewalling.

Responsibilities

• Ensure high availability, performance, and security of data centre infrastructure.
• Implement and manage backup and disaster recovery strategies.

Skills

Linux (Ubuntu / Centos)

Enterprise storage (ISCSI and SAN)

Automation tools (Ansible, Foreman)

IP networking, DNS, and firewalling

Python and shell scripting

Containerisation and orchestration

ITSM tools (Jira, ServiceNow)

Tools

Jira

ServiceNow

TeamCity

GitLab

Job description

This is an excellent opportunity for Linux Administration to be part of leading-edge technology projects. Cognizant’s Cloud, Infrastructure & Security Services Practice provides end-to-end solutions covering architecture, design, implementation, management, and on-going support across the entire enterprise technology infrastructure. Our services include a spectrum of management, consulting, and systems integration services to help our clients maximize value in their infrastructure resources, while optimizing infrastructure performance and cost.

Responsibilities

• Responsible for running and maintain on-premises data centres.
• To Ensure high availability, performance, and security of data centre infrastructure.
• Implement and manage backup, disaster recovery, and remediation strategies.
• Monitor and troubleshoot infrastructure related issues, ensuring minimal downtime.
• Collaborate with internal teams and vendors for upgrades and patch management.
• Document configurations, procedures, and system changes for audit and knowledge sharing purposes.

Required Skills

• Should have experience running and maintaining on-premises data centres
• Should have experience with Linux (Ubuntu / Centos)
• Should have experience enterprise storage including ISCSI and SAN technology
• Prior experience using automation tools (Ansible, Foreman etc)
• Knowledge of IP networking, DNS, and firewalling
• Experience with Python, shell scripts and command-line tools
• Knowledge of containerisation and related orchestration technologies
• Demonstrable experience of remediation projects, ideally within a PCI-DSS certified environment.
• Able & productive with ITSM tools such as Jira, ServiceNow etc.

Great to haves:

• Good knowledge of the various services and capabilities of cloud computing platforms; Ideally AWS
• Hyper-V, Microsoft AD, AAD & VMWare experience
• Experience maintaining OpenStack
• Experience maintaining build system, source code management, TeamCity and GitLab services

At Cognizant you will experience an exciting mix of innovation by design, creativity, collaboration, and efficiency within a framework of stimulating objectives and a passion for delivering the best to our customers.

You will be joining a network of some of the most creative, innovative, and dedicated people in the industry with ample opportunities to learn and develop your career.

Our Associates are chosen for their attitude, skills, knowledge, and enthusiasm but above all, their belief that anything is possible.

Cognizant is an equal opportunities employer, and we welcome all applications regardless of race, colour, gender, ethnic origin, nationality, religion or beliefs, disability, age, sexual orientation, political opinions, or trade union membership