Period
to 25 November 2020

The following table provides summary statistics for contract job vacancies advertised in Central London with a requirement for CentOS skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited CentOS over the 6 months to 25 November 2020 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

CentOS Linux
London > Central London
6 months to
25 Nov 2020
Same period 2019 Same period 2018
Rank 127 230 260
Rank change year-on-year +103 +30 -19
Contract jobs citing CentOS 9 18 36
As % of all contract jobs advertised in Central London 0.41% 0.25% 0.40%
As % of the Operating Systems category 2.45% 1.31% 1.93%
Number of daily rates quoted 9 15 23
Median daily rate £450 £500 £550
Median daily rate % change year-on-year -10.00% -9.09% +10.00%
10th Percentile £423 £399 £385
90th Percentile £565 £741 £635
London median daily rate £450 £525 £525
% change year-on-year -14.29% - +5.00%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
London median hourly rate £35.50 - -

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

All Operating Systems
Central London
Contract vacancies with a requirement for operating system skills 367 1,376 1,870
As % of all contract IT jobs advertised in Central London 16.58% 18.84% 20.61%
Number of daily rates quoted 256 1,059 1,413
Median daily rate £475 £450 £475
Median daily rate % change year-on-year +5.56% -5.26% -
10th Percentile £213 £163 £155
90th Percentile £650 £628 £625
London median daily rate £480 £454 £488
% change year-on-year +5.67% -6.82% +2.63%
Number of hourly rates quoted 6 46 79
Median hourly rate £23.00 £19.48 £18.70
Median hourly rate % change year-on-year +18.05% +4.18% +10.00%
10th Percentile £21.25 £12.04 £13.80
90th Percentile £91.63 £41.38 £24.62
Median hourly rate £35.00 £21.00 £18.70
% change year-on-year +66.67% +12.30% -4.10%

CentOS
Job Vacancy Trend in Central London

Job postings citing CentOS as a proportion of all IT jobs advertised in Central London.

Job vacancy trend for CentOS in Central London

CentOS
Contractor Daily Rate Trend in Central London

3-month moving average daily rate quoted in jobs citing CentOS in Central London.

Daily rate trend for CentOS in Central London

CentOS
Daily Rate Histogram in Central London

Daily rate distribution for jobs citing CentOS in Central London over the 6 months to 25 November 2020.

Daily rate histogram for CentOS in Central London

CentOS
Contractor Hourly Rate Trend in Central London

3-month moving average hourly rates quoted in jobs citing CentOS in Central London.

Hourly rate trend for CentOS in Central London

CentOS
Contract Job Locations in Central London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing CentOS within the Central London region over the 6 months to 25 November 2020. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
City of London +97 9 £450 -14.29% 16
CentOS
London

For the 6 months to 25 November 2020, IT contractor jobs citing CentOS also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads across the Central London region with a requirement for CentOS.

1 9 (100.00%) Linux
2 8 (88.89%) DevOps
3 6 (66.67%) Red Hat Enterprise Linux
4 5 (55.56%) Continuous Integration
4 5 (55.56%) AWS
4 5 (55.56%) Jenkins
4 5 (55.56%) Python
4 5 (55.56%) Ansible
4 5 (55.56%) Docker
4 5 (55.56%) Terraform
5 4 (44.44%) Consul
5 4 (44.44%) Kubernetes
5 4 (44.44%) Red Hat
5 4 (44.44%) Bash Shell
6 3 (33.33%) Puppet
6 3 (33.33%) SC Cleared
6 3 (33.33%) Security Cleared
6 3 (33.33%) JIRA
6 3 (33.33%) Agile Software Development
6 3 (33.33%) Ubuntu
6 3 (33.33%) Configuration Management
6 3 (33.33%) Java
6 3 (33.33%) Opscode Chef
7 2 (22.22%) Public Sector
7 2 (22.22%) Bitbucket
7 2 (22.22%) Virtual Private Cloud
7 2 (22.22%) Elastic Stack
7 2 (22.22%) Continuous Delivery
7 2 (22.22%) TDD
7 2 (22.22%) Migration

CentOS
Co-occurring IT Skills in Central London 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 2 (22.22%) nginx
2 1 (11.11%) Apache
2 1 (11.11%) Confluence
2 1 (11.11%) Elasticsearch
2 1 (11.11%) JBoss
2 1 (11.11%) Liferay
2 1 (11.11%) OpenStack
2 1 (11.11%) Tomcat
2 1 (11.11%) WebLogic
2 1 (11.11%) WebSphere
Cloud Services
1 5 (55.56%) AWS
2 2 (22.22%) Amazon S3
2 2 (22.22%) Amazon SQS
2 2 (22.22%) Azure
2 2 (22.22%) Virtual Private Cloud
3 1 (11.11%) AWS CloudFormation
3 1 (11.11%) AWS Lambda
3 1 (11.11%) Datadog
3 1 (11.11%) Serverless
Communications & Networking
1 1 (11.11%) DNS
1 1 (11.11%) HTTP
1 1 (11.11%) SAN
1 1 (11.11%) SMTP
1 1 (11.11%) SNMP
Database & Business Intelligence
1 1 (11.11%) Amazon DynamoDB
1 1 (11.11%) Amazon Redshift
1 1 (11.11%) MongoDB
1 1 (11.11%) MySQL
Development Applications
1 5 (55.56%) Jenkins
2 3 (33.33%) JIRA
3 2 (22.22%) Bitbucket
3 2 (22.22%) Git (software)
4 1 (11.11%) Vagrant
General
1 2 (22.22%) Public Sector
2 1 (11.11%) Finance
2 1 (11.11%) Retail
Job Titles
1 5 (55.56%) DevOps Engineer
2 4 (44.44%) AWS DevOps
3 3 (33.33%) AWS DevOps Engineer
3 3 (33.33%) AWS Engineer
4 2 (22.22%) Linux Specialist
4 2 (22.22%) Linux/Unix DevOps
5 1 (11.11%) DevOps Systems Engineer
5 1 (11.11%) Linux DevOps Engineer
5 1 (11.11%) Linux Engineer
5 1 (11.11%) Python Engineer
5 1 (11.11%) SC Cleared Software Engineer
5 1 (11.11%) Software Engineer
5 1 (11.11%) Systems Engineer
Libraries, Frameworks & Software Standards
1 2 (22.22%) Elastic Stack
2 1 (11.11%) LAMP
2 1 (11.11%) LDAP
2 1 (11.11%) LEMP Stack
2 1 (11.11%) Middleware
2 1 (11.11%) RabbitMQ
Miscellaneous
1 1 (11.11%) Private Cloud
Operating Systems
1 9 (100.00%) Linux
2 6 (66.67%) Red Hat Enterprise Linux
3 3 (33.33%) Ubuntu
4 2 (22.22%) Debian
4 2 (22.22%) SUSE
Processes & Methodologies
1 8 (88.89%) DevOps
2 5 (55.56%) Continuous Integration
3 3 (33.33%) Agile Software Development
3 3 (33.33%) Configuration Management
4 2 (22.22%) Continuous Delivery
4 2 (22.22%) Migration
4 2 (22.22%) Release Management
4 2 (22.22%) TDD
5 1 (11.11%) Anomaly Detection
5 1 (11.11%) Application Performance Management
5 1 (11.11%) Build Automation
5 1 (11.11%) Performance Management
5 1 (11.11%) Performance Tuning
5 1 (11.11%) Scrum
5 1 (11.11%) Software Engineering
Programming Languages
1 5 (55.56%) Python
2 4 (44.44%) Bash Shell
3 3 (33.33%) Java
4 1 (11.11%) Groovy
4 1 (11.11%) Perl
4 1 (11.11%) Ruby
Qualifications
1 3 (33.33%) SC Cleared
1 3 (33.33%) Security Cleared
System Software
1 5 (55.56%) Docker
2 1 (11.11%) VMware Infrastructure
Systems Management
1 5 (55.56%) Ansible
1 5 (55.56%) Terraform
2 4 (44.44%) Consul
2 4 (44.44%) Kubernetes
3 3 (33.33%) Opscode Chef
3 3 (33.33%) Puppet
4 1 (11.11%) logstash
4 1 (11.11%) Nagios
4 1 (11.11%) Packer
4 1 (11.11%) Pingdom
Vendors
1 4 (44.44%) Red Hat
2 1 (11.11%) AppDynamics
2 1 (11.11%) Atlassian
2 1 (11.11%) Axway
2 1 (11.11%) New Relic
2 1 (11.11%) Oracle
2 1 (11.11%) PagerDuty
2 1 (11.11%) Splunk
2 1 (11.11%) VMware