Period
to 26 January 2020

The following table provides summary statistics for contract job vacancies advertised in the South East 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 26 January 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
England > South East
6 months to
26 Jan 2020
Same period 2019 Same period 2018
Rank 260 296 301
Rank change year-on-year +36 +5 -60
Contract jobs citing CentOS 47 95 80
As % of all contract IT jobs advertised in the South East 0.42% 0.60% 0.48%
As % of the Operating Systems category 1.89% 2.70% 2.10%
Number of daily rates quoted 31 50 71
South East median daily rate £475 £475 £450
Median daily rate % change year-on-year - +5.56% -4.26%
10th Percentile £380 £396 £350
90th Percentile £550 £638 £613
England median daily rate £500 £475 £475
% change year-on-year +5.26% - +2.70%
Number of hourly rates quoted 0 0 3
South East median hourly rate - - £18.00
England median hourly rate £25.88 £38.41 £29.00
% change year-on-year -32.64% +32.46% +70.59%

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 the South East with a requirement for operating system skills.

All Operating Systems
South East
Contract vacancies with a requirement for operating system skills 2,493 3,515 3,808
As % of all contract IT jobs advertised in the South East 22.06% 22.21% 23.00%
Number of daily rates quoted 1,440 1,956 2,124
South East median daily rate £400 £400 £400
10th Percentile £133 £158 £140
90th Percentile £573 £575 £555
England median daily rate £413 £428 £425
% change year-on-year -3.51% +0.59% +3.03%
Number of hourly rates quoted 221 294 276
South East median hourly rate £17.50 £16.50 £17.50
Median hourly rate % change year-on-year +6.06% -5.71% +9.38%
10th Percentile £11.85 £11.00 £11.09
90th Percentile £53.75 £51.00 £50.25
England median hourly rate £17.50 £17.50 £17.50
% change year-on-year +0.01% -0.01% +6.06%

CentOS
Job Vacancy Trend in the South East

Job postings citing CentOS as a percentage of all IT jobs advertised in the South East.

Job vacancy trend for CentOS in the South East

CentOS
Contractor Daily Rate Trend in the South East

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing CentOS in the South East.

Contractor daily rate trend for CentOS in the South East

CentOS
Contractor Daily Rate Histogram in the South East

The daily rate distribution of IT jobs citing CentOS in the South East over the 6 months to 26 January 2020.

Contractor daily rate histogram for CentOS in the South East

CentOS
Contractor Hourly Rate Trend in the South East

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing CentOS in the South East.

Contractor hourly rate trend for CentOS in the South East

CentOS
Contract Job Locations in the South East

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing CentOS within the South East region over the 6 months to 26 January 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
Thames Valley -3 17 £500 +11.11% 16
Hampshire +34 15 £525 -4.55% 14
Surrey +61 14 £475 -2.56% 19
Buckinghamshire +25 8 £338 -25.12%
Berkshire -19 8 £500 +11.11% 8
Oxfordshire +21 1 £550 -15.38% 8
East Sussex +15 1 £510 +36.00%
CentOS
England

For the 6 months to 26 January 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 South East region with a requirement for CentOS.

1 47 (100.00%) Linux
2 25 (53.19%) Windows
2 25 (53.19%) Red Hat Enterprise Linux
3 22 (46.81%) Security Cleared
4 21 (44.68%) Ansible
4 21 (44.68%) Python
5 20 (42.55%) Jenkins
5 20 (42.55%) SC Cleared
6 18 (38.30%) DevOps
7 17 (36.17%) Git (software)
8 16 (34.04%) Ubuntu
9 14 (29.79%) Subversion
9 14 (29.79%) Test Automation
9 14 (29.79%) Windows Server
10 12 (25.53%) Red Hat
10 12 (25.53%) Configuration Management
10 12 (25.53%) Tomcat
10 12 (25.53%) Java
10 12 (25.53%) SQL
10 12 (25.53%) Hadoop
10 12 (25.53%) Big Data
10 12 (25.53%) Cloudera
10 12 (25.53%) Project Delivery
11 11 (23.40%) FindBugs
11 11 (23.40%) Docker
11 11 (23.40%) SonarQube
11 11 (23.40%) Mercurial
11 11 (23.40%) RabbitMQ
11 11 (23.40%) System Testing
11 11 (23.40%) C++

CentOS
Co-occurring IT Skills in the South East 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 12 (25.53%) Tomcat
2 7 (14.89%) Apache Spark
2 7 (14.89%) Jupyter
2 7 (14.89%) SAS
3 3 (6.38%) Apache
3 3 (6.38%) Elasticsearch
3 3 (6.38%) IIS
3 3 (6.38%) SharePoint
4 2 (4.26%) Confluence
4 2 (4.26%) nginx
4 2 (4.26%) SharePoint 2010
4 2 (4.26%) SharePoint 2013
5 1 (2.13%) Apache Solr
5 1 (2.13%) Exchange Server 2010
5 1 (2.13%) Exchange Server 2013
5 1 (2.13%) MS Exchange
5 1 (2.13%) OpenStack
5 1 (2.13%) Skype for Business
5 1 (2.13%) WordPress
Cloud Services
1 8 (17.02%) Azure
2 7 (14.89%) AWS
3 3 (6.38%) GitHub
3 3 (6.38%) SaaS
4 2 (4.26%) GCP
4 2 (4.26%) Serverless
5 1 (2.13%) Amazon EC2
5 1 (2.13%) Amazon S3
5 1 (2.13%) AWS Lambda
5 1 (2.13%) Azure Active Directory
5 1 (2.13%) Azure Functions
5 1 (2.13%) Cloud Computing
5 1 (2.13%) Office 365
5 1 (2.13%) Virtual Private Cloud
Communications & Networking
1 7 (14.89%) SAN
2 6 (12.77%) DNS
3 3 (6.38%) TCP/IP
4 2 (4.26%) DHCP
4 2 (4.26%) Firewall
4 2 (4.26%) LAN
4 2 (4.26%) Network Security
4 2 (4.26%) SSH
4 2 (4.26%) WAN
5 1 (2.13%) Cisco ASA
5 1 (2.13%) Internet
5 1 (2.13%) IPsec
5 1 (2.13%) Skype
5 1 (2.13%) SNMP
5 1 (2.13%) VPN
5 1 (2.13%) Wireless
Database & Business Intelligence
1 12 (25.53%) Big Data
1 12 (25.53%) Hadoop
2 10 (21.28%) SQL Server
3 8 (17.02%) Relational Database
4 7 (14.89%) Apache Hive
4 7 (14.89%) Apache Zeppelin
4 7 (14.89%) Data Lake
4 7 (14.89%) Impala
5 5 (10.64%) Cloudera CDH
6 4 (8.51%) PostgreSQL
7 3 (6.38%) MongoDB
7 3 (6.38%) MySQL
8 2 (4.26%) MariaDB
9 1 (2.13%) Amazon RDS
9 1 (2.13%) Azure SQL Database
Development Applications
1 20 (42.55%) Jenkins
2 17 (36.17%) Git (software)
3 14 (29.79%) Subversion
4 11 (23.40%) FindBugs
4 11 (23.40%) Log4j
4 11 (23.40%) Maven
4 11 (23.40%) Mercurial
4 11 (23.40%) SonarQube
5 2 (4.26%) GitLab
5 2 (4.26%) JIRA
6 1 (2.13%) TeamCity
6 1 (2.13%) Visual Studio
General
1 4 (8.51%) Public Sector
2 2 (4.26%) Finance
2 2 (4.26%) Marketing
3 1 (2.13%) Electronics
3 1 (2.13%) Manufacturing
3 1 (2.13%) Retail
3 1 (2.13%) Telecoms
Job Titles
1 13 (27.66%) Developer
2 11 (23.40%) DevOps Engineer
3 9 (19.15%) Java Developer
4 8 (17.02%) Architect
5 7 (14.89%) Software Developer
5 7 (14.89%) Solutions Architect
6 6 (12.77%) Java Software Developer
6 6 (12.77%) Linux Engineer
7 4 (8.51%) Data Architect
7 4 (8.51%) Senior DevOps
7 4 (8.51%) Senior DevOps Engineer
8 3 (6.38%) Consultant
8 3 (6.38%) SC Cleared Java Developer
8 3 (6.38%) Senior Linux Engineer
9 2 (4.26%) Administrator
9 2 (4.26%) Citrix Consultant
9 2 (4.26%) Linux Administrator
9 2 (4.26%) Linux DevOps Engineer
9 2 (4.26%) Linux Systems Administrator
9 2 (4.26%) Systems Administrator
Libraries, Frameworks & Software Standards
1 11 (23.40%) RabbitMQ
1 11 (23.40%) Spring
2 7 (14.89%) Apache NiFi
2 7 (14.89%) Kafka
3 6 (12.77%) Elastic Stack
4 2 (4.26%) LAMP
4 2 (4.26%) LDAP
4 2 (4.26%) REST
4 2 (4.26%) Web Services
5 1 (2.13%) .NET
5 1 (2.13%) .NET Framework
5 1 (2.13%) AngularJS
5 1 (2.13%) ASP.NET
5 1 (2.13%) ASP.NET Web API
5 1 (2.13%) Classic ASP
5 1 (2.13%) CSS
5 1 (2.13%) CSS3
5 1 (2.13%) HTML
5 1 (2.13%) JSON
5 1 (2.13%) WinForms
Miscellaneous
1 3 (6.38%) Data Centre
2 2 (4.26%) CMDB
2 2 (4.26%) Self-Motivation
3 1 (2.13%) Public Cloud
Operating Systems
1 47 (100.00%) Linux
2 25 (53.19%) Red Hat Enterprise Linux
2 25 (53.19%) Windows
3 16 (34.04%) Ubuntu
4 14 (29.79%) Windows Server
5 11 (23.40%) Debian
6 4 (8.51%) Windows Server 2012
7 3 (6.38%) CoreOS
7 3 (6.38%) Windows 10
7 3 (6.38%) Windows Server 2008
8 2 (4.26%) VMS
9 1 (2.13%) Fedora
9 1 (2.13%) Mac OS
9 1 (2.13%) Mac OS X
9 1 (2.13%) Solaris
9 1 (2.13%) Unix
9 1 (2.13%) Windows 7
Processes & Methodologies
1 18 (38.30%) DevOps
2 14 (29.79%) Test Automation
3 12 (25.53%) Configuration Management
3 12 (25.53%) Project Delivery
4 11 (23.40%) System Testing
5 10 (21.28%) ITIL
6 9 (19.15%) Mentoring
6 9 (19.15%) Migration
7 7 (14.89%) Agile Software Development
7 7 (14.89%) Analytics
7 7 (14.89%) ArchiMate
7 7 (14.89%) Coaching
7 7 (14.89%) Continuous Integration
7 7 (14.89%) Data Analytics
7 7 (14.89%) Data Management
7 7 (14.89%) Data Munging
7 7 (14.89%) Data Security
7 7 (14.89%) Data Transformation
7 7 (14.89%) Scrum
7 7 (14.89%) TOGAF
Programming Languages
1 21 (44.68%) Python
2 12 (25.53%) Java
2 12 (25.53%) SQL
3 11 (23.40%) C++
4 5 (10.64%) Bash Shell
5 4 (8.51%) Ruby
6 3 (6.38%) JavaScript
6 3 (6.38%) PHP
6 3 (6.38%) PowerShell
7 2 (4.26%) Perl
8 1 (2.13%) C#
8 1 (2.13%) Shell Script
8 1 (2.13%) TypeScript
8 1 (2.13%) VBA
8 1 (2.13%) VBScript
Qualifications
1 22 (46.81%) Security Cleared
2 20 (42.55%) SC Cleared
3 3 (6.38%) DV Cleared
4 2 (4.26%) AWS Certification
4 2 (4.26%) MCITP
4 2 (4.26%) MCSE
4 2 (4.26%) Microsoft Certification
4 2 (4.26%) VMware Certified Professional (VCP)
5 1 (2.13%) DBS Check
5 1 (2.13%) Degree
5 1 (2.13%) RHCE
Quality Assurance & Compliance
1 2 (4.26%) QA
2 1 (2.13%) ISO/IEC 27001
System Software
1 11 (23.40%) Docker
2 8 (17.02%) Virtual Servers
3 7 (14.89%) Virtual Desktop
4 5 (10.64%) VMware Infrastructure
5 4 (8.51%) Active Directory
6 2 (4.26%) KVM
6 2 (4.26%) VMware ESXi
6 2 (4.26%) vSphere
7 1 (2.13%) Microsoft Virtual Server
7 1 (2.13%) Virtual Machines
7 1 (2.13%) XenDesktop
Systems Management
1 21 (44.68%) Ansible
2 9 (19.15%) Kubernetes
3 8 (17.02%) Puppet
4 7 (14.89%) Oozie
5 5 (10.64%) Terraform
6 4 (8.51%) HAProxy
7 3 (6.38%) Opscode Chef
8 2 (4.26%) logstash
8 2 (4.26%) Nagios
8 2 (4.26%) vRealize
8 2 (4.26%) WSUS
8 2 (4.26%) ZABBIX
9 1 (2.13%) cPanel
9 1 (2.13%) Kibana
9 1 (2.13%) Packer
9 1 (2.13%) Prometheus
9 1 (2.13%) SCCM
Vendors
1 12 (25.53%) Cloudera
1 12 (25.53%) Red Hat
2 11 (23.40%) VMware
3 10 (21.28%) Oracle
4 7 (14.89%) Hortonworks
4 7 (14.89%) Microsoft
4 7 (14.89%) StreamSets
5 4 (8.51%) ServiceNow
6 3 (6.38%) Citrix
7 2 (4.26%) Atlassian
7 2 (4.26%) Cisco
7 2 (4.26%) Juniper
7 2 (4.26%) NetApp
7 2 (4.26%) SolarWinds
7 2 (4.26%) Splunk
8 1 (2.13%) Aruba
8 1 (2.13%) Draytek
8 1 (2.13%) Infoblox
8 1 (2.13%) Qualys
8 1 (2.13%) SonicWALL