Period
to 19 November 2017

The following table provides summary statistics for permanent job vacancies advertised in Twickenham with a requirement for CentOS skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited CentOS over the 6 months to 19 November 2017 with a comparison to the same period in the previous 2 years.

CentOS Linux
6 months to
19 Nov 2017
Same period 2016 Same period 2015
Rank 20 - -
Rank change year-on-year - - +19
Permanent jobs citing CentOS 15 0 0
As % of all permanent IT jobs advertised in Twickenham 9.49% - -
As % of the Operating Systems category 30.00% - -
Number of salaries quoted 13 0 0
Twickenham median annual salary £35,000 - -
Richmond upon Thames median annual salary £35,000 £52,500 £30,000
% change year-on-year -33.33% +75.00% -38.46%

CentOS is in the Operating Systems category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in Twickenham with a requirement for operating system skills.

All Operating Systems
Twickenham
Permanent vacancies with a requirement for operating system skills 50 30 34
As % of all permanent IT jobs advertised in Twickenham 31.65% 22.06% 19.88%
Number of salaries quoted 45 26 33
Twickenham median annual salary £35,000 £46,250 £45,000
Median salary % change year-on-year -24.32% +2.78% +28.57%
10th Percentile £27,500 £26,250 £27,500
90th Percentile £69,750 £63,750 £82,500
Richmond upon Thames median annual salary £35,000 £42,500 £47,500
% change year-on-year -17.65% -10.53% +11.76%

CentOS
Job Vacancy Trend in Twickenham

Job postings citing CentOS as a percentage of all IT jobs advertised in Twickenham.

Job vacancy trend for CentOS in Twickenham

CentOS
Salary Trend in Twickenham

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing CentOS in Twickenham.

Salary trend for CentOS in Twickenham

CentOS
Salary Histogram in Twickenham

The salary distribution of IT jobs citing CentOS in Twickenham over the 6 months to 19 November 2017.

Salary histogram for CentOS in Twickenham

For the 6 months to 19 November 2017, IT jobs citing CentOS also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the Twickenham region with a requirement for CentOS.

1 15 (100.00%) Linux
1 15 (100.00%) Python
1 15 (100.00%) DevOps
2 14 (93.33%) LEMP Stack
2 14 (93.33%) nginx
2 14 (93.33%) E-Commerce
2 14 (93.33%) MySQL
2 14 (93.33%) Configuration Management
3 9 (60.00%) Unix
3 9 (60.00%) Perl
3 9 (60.00%) PHP
3 9 (60.00%) Red Hat
3 9 (60.00%) Bash Shell
4 8 (53.33%) Git (software)
4 8 (53.33%) Regular Expression
4 8 (53.33%) Redis
4 8 (53.33%) Percona
4 8 (53.33%) Analytics
4 8 (53.33%) Nagios
4 8 (53.33%) Benchmarking
4 8 (53.33%) Kibana
4 8 (53.33%) Puppet
4 8 (53.33%) RabbitMQ
4 8 (53.33%) Elasticsearch
4 8 (53.33%) HAProxy
4 8 (53.33%) KVM
4 8 (53.33%) Docker
4 8 (53.33%) SQL
4 8 (53.33%) NFS
4 8 (53.33%) FreeBSD

CentOS
Co-occurring IT Skills in Twickenham by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 14 (93.33%) nginx
2 8 (53.33%) Elasticsearch
3 6 (40.00%) Apache
3 6 (40.00%) Tomcat
4 1 (6.67%) Confluence
Cloud Services
1 6 (40.00%) Amazon AWS
1 6 (40.00%) Amazon EC2
1 6 (40.00%) Amazon ElastiCache
1 6 (40.00%) Amazon ELB
1 6 (40.00%) AWS CloudFormation
Communications & Networking
1 1 (6.67%) TCP/IP
Database & Business Intelligence
1 14 (93.33%) MySQL
2 8 (53.33%) Redis
3 6 (40.00%) Amazon RDS
Development Applications
1 8 (53.33%) Git (software)
2 1 (6.67%) Hudson
2 1 (6.67%) Jenkins
2 1 (6.67%) JIRA
2 1 (6.67%) Subversion
General
1 8 (53.33%) Marketing
2 1 (6.67%) Electronics
Job Titles
1 8 (53.33%) Systems Engineer
2 6 (40.00%) AWS DevOps
2 6 (40.00%) AWS DevOps Engineer
2 6 (40.00%) AWS Engineer
2 6 (40.00%) DevOps Engineer
3 1 (6.67%) Infrastructure Engineer
3 1 (6.67%) Infrastructure Support
3 1 (6.67%) Infrastructure Support Engineer
3 1 (6.67%) Support Engineer
Libraries, Frameworks & Software Standards
1 14 (93.33%) LEMP Stack
2 8 (53.33%) RabbitMQ
2 8 (53.33%) Regular Expression
3 6 (40.00%) LAMP
Miscellaneous
1 1 (6.67%) Computer Science
Operating Systems
1 15 (100.00%) Linux
2 9 (60.00%) Unix
3 8 (53.33%) FreeBSD
4 7 (46.67%) Windows
5 6 (40.00%) Amazon Linux
5 6 (40.00%) Red Hat Enterprise Linux
Processes & Methodologies
1 15 (100.00%) DevOps
2 14 (93.33%) Configuration Management
2 14 (93.33%) E-Commerce
3 8 (53.33%) Analytics
3 8 (53.33%) Benchmarking
3 8 (53.33%) Performance Testing
4 1 (6.67%) Agile Software Development
4 1 (6.67%) Collaborative Working
4 1 (6.67%) Continuous Integration
4 1 (6.67%) Creative Thinking
4 1 (6.67%) Multithreaded Programming
4 1 (6.67%) Multithreading
4 1 (6.67%) OO
4 1 (6.67%) OOD
Programming Languages
1 15 (100.00%) Python
2 9 (60.00%) Bash Shell
2 9 (60.00%) Perl
2 9 (60.00%) PHP
3 8 (53.33%) SQL
4 7 (46.67%) Java
5 1 (6.67%) C
5 1 (6.67%) C++
5 1 (6.67%) Ruby
Qualifications
1 6 (40.00%) AWS Certification
2 1 (6.67%) Degree
System Software
1 8 (53.33%) Docker
1 8 (53.33%) KVM
1 8 (53.33%) NFS
2 1 (6.67%) Virtual Machines
2 1 (6.67%) VMware Infrastructure
2 1 (6.67%) vSphere
Systems Management
1 8 (53.33%) HAProxy
1 8 (53.33%) Kibana
1 8 (53.33%) Nagios
1 8 (53.33%) Puppet
2 1 (6.67%) vCenter Server
2 1 (6.67%) ZABBIX
Vendors
1 9 (60.00%) Red Hat
2 8 (53.33%) Percona
3 6 (40.00%) hybris
4 1 (6.67%) Atlassian
4 1 (6.67%) VMware