Period
to 26 April 2018

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 April 2018 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 Apr 2018
Same period 2017 Same period 2016
Rank 285 232 289
Rank change year-on-year -53 +57 +18
Contract jobs citing CentOS 91 122 103
As % of all contract IT jobs advertised in the South East 0.54% 0.79% 0.57%
As % of the Operating Systems category 2.43% 3.70% 2.29%
Number of daily rates quoted 72 90 75
South East median daily rate £525 £475 £425
Median daily rate % change year-on-year +10.53% +11.76% +15.65%
10th Percentile £381 £386 £297
90th Percentile £600 £614 £500
England median daily rate £500 £475 £450
% change year-on-year +5.26% +5.56% +12.15%
Number of hourly rates quoted 2 0 0
South East median hourly rate £33.25 - -
England median hourly rate £51.00 £17.50 £50.00
% change year-on-year +191.43% -65.00% +5.26%

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 3,751 3,298 4,498
As % of all contract IT jobs advertised in the South East 22.40% 21.37% 24.83%
Number of daily rates quoted 2,064 1,871 2,686
South East median daily rate £413 £400 £375
Median daily rate % change year-on-year +3.13% +6.67% +7.14%
10th Percentile £150 £200 £200
90th Percentile £569 £538 £525
England median daily rate £445 £425 £400
% change year-on-year +4.71% +6.25% +6.67%
Number of hourly rates quoted 279 249 358
South East median hourly rate £17.50 £15.50 £18.63
Median hourly rate % change year-on-year +12.90% -16.78% +15.40%
10th Percentile £10.95 £10.50 £11.18
90th Percentile £50.76 £47.50 £48.75
England median hourly rate £17.00 £17.00 £17.00

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 April 2018.

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
Contractor Hourly Rate Histogram in the South East

The hourly rate distribution of IT jobs citing CentOS in the South East over the 6 months to 26 April 2018.

Contractor hourly rate histogram 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 April 2018. 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 -27 50 £575 +15.00% 20
Berkshire -12 39 £575 +12.20% 18
Hampshire -18 18 £418 -9.68% 2
Surrey -31 16 £488 +16.49% 11
Oxfordshire -8 10 £610 +52.50% 2
West Sussex -2 4 £350 -39.13%
Buckinghamshire -32 2 £300 -32.05%
Middlesex 0 1 £412 +0.49%
CentOS
England

For the 6 months to 26 April 2018, 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 91 (100.00%) Linux
2 47 (51.65%) DevOps
3 43 (47.25%) Bash Shell
4 37 (40.66%) Python
5 34 (37.36%) Red Hat Enterprise Linux
6 31 (34.07%) Puppet
6 31 (34.07%) Amazon AWS
6 31 (34.07%) Java
7 30 (32.97%) PostgreSQL
7 30 (32.97%) Google
8 28 (30.77%) Jenkins
8 28 (30.77%) Greenfield Project
9 27 (29.67%) Hadoop
9 27 (29.67%) Web Services
10 26 (28.57%) Red Hat
10 26 (28.57%) RESTful
10 26 (28.57%) Big Data
11 25 (27.47%) SQL Server
12 24 (26.37%) SOAP
12 24 (26.37%) Kafka
12 24 (26.37%) Apache Flume
12 24 (26.37%) Hortonworks
12 24 (26.37%) Cloudera
12 24 (26.37%) Analytics
12 24 (26.37%) MapR
12 24 (26.37%) Sqoop
12 24 (26.37%) Oozie
12 24 (26.37%) HDFS
12 24 (26.37%) Data Strategy
12 24 (26.37%) Data Lake

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 21 (23.08%) Apache Spark
2 11 (12.09%) nginx
3 10 (10.99%) Apache
4 9 (9.89%) OpenStack
5 8 (8.79%) Confluence
6 7 (7.69%) Elasticsearch
7 6 (6.59%) Tomcat
7 6 (6.59%) WebLogic
8 4 (4.40%) Jetty
9 2 (2.20%) IBM Domino
9 2 (2.20%) IIS
9 2 (2.20%) MS Exchange
10 1 (1.10%) Apache Pig
10 1 (1.10%) ColdFusion
Cloud Services
1 31 (34.07%) Amazon AWS
2 21 (23.08%) Google Tag Manager
3 17 (18.68%) Microsoft Azure
4 13 (14.29%) AWS CloudFormation
5 9 (9.89%) Amazon CloudWatch
5 9 (9.89%) Cloud Computing
5 9 (9.89%) GitHub
5 9 (9.89%) Google Cloud Platform
6 6 (6.59%) OpenShift
7 1 (1.10%) Amazon EC2
7 1 (1.10%) Amazon ELB
7 1 (1.10%) Datadog
7 1 (1.10%) IaaS
7 1 (1.10%) IBM Cloud
7 1 (1.10%) Route 53
7 1 (1.10%) SoftLayer
7 1 (1.10%) Virtual Private Cloud
Communications & Networking
1 9 (9.89%) Firewall
2 8 (8.79%) DNS
3 7 (7.69%) SSL
4 6 (6.59%) DHCP
4 6 (6.59%) Internet
5 5 (5.49%) NetScaler
5 5 (5.49%) TCP/IP
6 4 (4.40%) HTTP
6 4 (4.40%) Network Security
6 4 (4.40%) Wireless
7 3 (3.30%) Fibre Channel
7 3 (3.30%) SAN
7 3 (3.30%) SSH
8 1 (1.10%) DVB
8 1 (1.10%) SNMP
8 1 (1.10%) Software-Defined Networking
8 1 (1.10%) TACACS
8 1 (1.10%) VLAN
8 1 (1.10%) VPN
8 1 (1.10%) VXLAN
Database & Business Intelligence
1 30 (32.97%) PostgreSQL
2 27 (29.67%) Hadoop
3 26 (28.57%) Big Data
4 25 (27.47%) SQL Server
5 24 (26.37%) Data Lake
5 24 (26.37%) Sqoop
6 21 (23.08%) Apache Hive
6 21 (23.08%) HBase
6 21 (23.08%) Impala
7 11 (12.09%) MongoDB
8 5 (5.49%) Apache Cassandra
8 5 (5.49%) Couchbase
8 5 (5.49%) MySQL
9 4 (4.40%) NoSQL
10 3 (3.30%) BusinessObjects
10 3 (3.30%) Relational Database
11 2 (2.20%) Amazon RDS
11 2 (2.20%) Redis
12 1 (1.10%) RDBMS
Development Applications
1 28 (30.77%) Jenkins
2 23 (25.27%) Git (software)
3 12 (13.19%) Vagrant
4 9 (9.89%) Artifactory
4 9 (9.89%) JIRA
5 7 (7.69%) Bitbucket
6 5 (5.49%) git-flow
7 2 (2.20%) Atlassian Bamboo
7 2 (2.20%) Sonatype Nexus
7 2 (2.20%) Travis CI
8 1 (1.10%) TeamCity
General
1 6 (6.59%) Telecoms
2 2 (2.20%) Publishing
3 1 (1.10%) Legal
3 1 (1.10%) Manufacturing
Job Titles
1 35 (38.46%) DevOps Engineer
2 20 (21.98%) Linux Engineer
3 12 (13.19%) Linux/Unix DevOps
4 10 (10.99%) Infrastructure Engineer
4 10 (10.99%) Linux DevOps Engineer
5 6 (6.59%) Administrator
5 6 (6.59%) AWS DevOps
5 6 (6.59%) AWS DevOps Engineer
5 6 (6.59%) AWS Engineer
5 6 (6.59%) Systems Administrator
6 5 (5.49%) Cloud Engineer
6 5 (5.49%) Developer
6 5 (5.49%) Network Engineer
6 5 (5.49%) Splunk Engineer
6 5 (5.49%) Systems Engineer
7 4 (4.40%) Linux Administrator
7 4 (4.40%) Linux Infrastructure Engineer
7 4 (4.40%) Linux Systems Administrator
7 4 (4.40%) Unix Administrator
7 4 (4.40%) Unix Systems Administrator
Libraries, Frameworks & Software Standards
1 27 (29.67%) Web Services
2 26 (28.57%) RESTful
3 24 (26.37%) Kafka
3 24 (26.37%) SOAP
4 14 (15.38%) Elastic Stack
5 7 (7.69%) MCollective
5 7 (7.69%) YAML
6 5 (5.49%) Regular Expression
6 5 (5.49%) Sensu
7 3 (3.30%) Node.js
8 2 (2.20%) boto
8 2 (2.20%) Socket.IO
9 1 (1.10%) HTML
9 1 (1.10%) HTML5
9 1 (1.10%) LAMP
9 1 (1.10%) LEMP Stack
9 1 (1.10%) REST
Miscellaneous
1 28 (30.77%) Greenfield Project
2 5 (5.49%) Enterprise Software
2 5 (5.49%) Linux Command Line
2 5 (5.49%) Video on Demand
3 3 (3.30%) Data Centre
3 3 (3.30%) Management Information System
4 2 (2.20%) Analytical Skills
4 2 (2.20%) Computer Science
4 2 (2.20%) Hybrid Cloud
4 2 (2.20%) Private Cloud
5 1 (1.10%) Digital TV
5 1 (1.10%) Enterprise Cloud
5 1 (1.10%) MPEG
5 1 (1.10%) Replication
5 1 (1.10%) STB
5 1 (1.10%) VxBlock/Vblock
Operating Systems
1 91 (100.00%) Linux
2 34 (37.36%) Red Hat Enterprise Linux
3 18 (19.78%) Windows
4 16 (17.58%) Ubuntu
5 15 (16.48%) Debian
6 13 (14.29%) Unix
7 8 (8.79%) Solaris
8 5 (5.49%) Windows Server
9 4 (4.40%) Windows Server 2008
10 3 (3.30%) DC/OS
10 3 (3.30%) HPUX
10 3 (3.30%) Windows Server 2012
11 2 (2.20%) SUSE
11 2 (2.20%) Windows Server 2003
12 1 (1.10%) Amazon Linux
12 1 (1.10%) Windows 10
12 1 (1.10%) Windows 7
Processes & Methodologies
1 47 (51.65%) DevOps
2 24 (26.37%) Analytics
2 24 (26.37%) Data Strategy
3 22 (24.18%) Agile Software Development
4 21 (23.08%) Configuration Management
4 21 (23.08%) Tag Management
4 21 (23.08%) Web Analytics
5 18 (19.78%) Open Source
6 12 (13.19%) Test Automation
7 10 (10.99%) Scrum
7 10 (10.99%) Server Hardening
8 9 (9.89%) Continuous Integration
9 8 (8.79%) ITIL
9 8 (8.79%) TDD
10 7 (7.69%) Load Balancing
11 6 (6.59%) Integration Testing
11 6 (6.59%) Load Testing
11 6 (6.59%) System Testing
11 6 (6.59%) Unit Testing
11 6 (6.59%) Vulnerability Scanning
Programming Languages
1 43 (47.25%) Bash Shell
2 37 (40.66%) Python
3 31 (34.07%) Java
4 22 (24.18%) Scala
5 15 (16.48%) Ruby
6 14 (15.38%) PowerShell
7 11 (12.09%) Perl
8 9 (9.89%) Shell Script
9 8 (8.79%) SQL
10 4 (4.40%) C++
11 3 (3.30%) AWK
11 3 (3.30%) Bourne shell
11 3 (3.30%) C
11 3 (3.30%) JavaScript
11 3 (3.30%) Korn
11 3 (3.30%) PHP
12 1 (1.10%) Groovy
12 1 (1.10%) VB
12 1 (1.10%) VBScript
Qualifications
1 10 (10.99%) Security Cleared
2 9 (9.89%) SC Cleared
3 2 (2.20%) Degree
4 1 (1.10%) CCIE
4 1 (1.10%) CCNA
4 1 (1.10%) CCNP
4 1 (1.10%) Cisco Certification
4 1 (1.10%) DV Cleared
4 1 (1.10%) OCA
4 1 (1.10%) OCP
4 1 (1.10%) Oracle Certification
4 1 (1.10%) RHCE
4 1 (1.10%) RHCSA
System Software
1 24 (26.37%) Apache Flume
1 24 (26.37%) HDFS
2 18 (19.78%) Docker
3 9 (9.89%) VMware Infrastructure
4 6 (6.59%) Active Directory
4 6 (6.59%) VMware ESXi
5 5 (5.49%) Hyper-V
6 3 (3.30%) GlusterFS
6 3 (3.30%) Veritas Cluster Server
6 3 (3.30%) Virtual Desktop
6 3 (3.30%) Virtual Machines
6 3 (3.30%) VMware Workstation
7 2 (2.20%) vCloud
7 2 (2.20%) VirtualBox
7 2 (2.20%) vSphere
8 1 (1.10%) iptables
8 1 (1.10%) KVM
8 1 (1.10%) VMware NSX
Systems Management
1 31 (34.07%) Puppet
2 24 (26.37%) Oozie
3 22 (24.18%) Ansible
4 17 (18.68%) Opscode Chef
5 14 (15.38%) Terraform
6 9 (9.89%) Packer
7 7 (7.69%) Kibana
7 7 (7.69%) logstash
7 7 (7.69%) SELinux
8 5 (5.49%) Grafana
9 4 (4.40%) HAProxy
9 4 (4.40%) Kubernetes
10 3 (3.30%) Nagios
10 3 (3.30%) NetBackup
10 3 (3.30%) Oracle ZFS
10 3 (3.30%) Red Hat Satellite
10 3 (3.30%) Red Hat Spacewalk
10 3 (3.30%) SCCM
10 3 (3.30%) Veritas Storage Foundation
11 2 (2.20%) Unicenter
Vendors
1 30 (32.97%) Google
2 26 (28.57%) Red Hat
3 24 (26.37%) Cloudera
3 24 (26.37%) Hortonworks
3 24 (26.37%) MapR
4 21 (23.08%) Salesforce.com
4 21 (23.08%) Talend
4 21 (23.08%) Tealium
5 16 (17.58%) Oracle
6 14 (15.38%) VMware
7 8 (8.79%) Microsoft
7 8 (8.79%) Sun
8 7 (7.69%) CA
8 7 (7.69%) Splunk
9 6 (6.59%) Citrix
9 6 (6.59%) Dell
10 5 (5.49%) Cisco
10 5 (5.49%) EMC
10 5 (5.49%) HP
10 5 (5.49%) NetApp