Period
to 20 January 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 20 January 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
20 Jan 2018
Same period 2017 Same period 2016
Rank 301 245 279
Rank change year-on-year -56 +34 +21
Contract jobs citing CentOS 76 112 103
As % of all contract IT jobs advertised in the South East 0.46% 0.73% 0.56%
As % of the Operating Systems category 2.02% 3.28% 2.29%
Number of daily rates quoted 67 88 65
South East median daily rate £450 £470 £420
Median daily rate % change year-on-year -4.26% +11.90% +14.29%
10th Percentile £335 £400 £302
90th Percentile £630 £575 £500
England median daily rate £475 £463 £448
% change year-on-year +2.70% +3.35% +11.88%
Number of hourly rates quoted 3 1 0
South East median hourly rate £18.00 £18.00 -
England median hourly rate £29.00 £17.00 £50.00
% change year-on-year +70.59% -66.00% +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 3,758 3,417 4,507
As % of all contract IT jobs advertised in the South East 22.97% 22.18% 24.57%
Number of daily rates quoted 2,105 1,948 2,555
South East median daily rate £400 £380 £375
Median daily rate % change year-on-year +5.26% +1.33% +10.29%
10th Percentile £141 £202 £200
90th Percentile £551 £538 £513
England median daily rate £425 £413 £400
% change year-on-year +3.03% +3.13% +6.67%
Number of hourly rates quoted 269 272 406
South East median hourly rate £17.50 £16.18 £20.00
Median hourly rate % change year-on-year +8.19% -19.13% +25.00%
10th Percentile £10.75 £10.76 £11.25
90th Percentile £50.25 £47.71 £51.25
England median hourly rate £17.50 £16.50 £16.77
% change year-on-year +6.06% -1.61% +4.81%

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 20 January 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
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 20 January 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 -44 37 £575 +15.00% 15
Berkshire -18 28 £575 +15.00% 10
Hampshire +11 20 £403 -10.56% 4
Surrey -33 12 £415 -0.84% 11
Oxfordshire -1 9 £540 +21.69% 4
Middlesex +5 4 £345 -15.85%
West Sussex - 3 £600 -
Buckinghamshire -38 1 £300 -40.00% 1
CentOS
England

For the 6 months to 20 January 2018, IT contractor jobs citing CentOS also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the South East region with a requirement for CentOS.

1 76 (100.00%) Linux
2 33 (43.42%) Red Hat Enterprise Linux
2 33 (43.42%) DevOps
3 29 (38.16%) Bash Shell
4 24 (31.58%) Python
5 23 (30.26%) Puppet
5 23 (30.26%) Amazon AWS
6 22 (28.95%) Java
6 22 (28.95%) Google
7 21 (27.63%) Greenfield Project
8 20 (26.32%) Red Hat
9 19 (25.00%) DNS
9 19 (25.00%) Web Services
9 19 (25.00%) Ubuntu
9 19 (25.00%) Ansible
9 19 (25.00%) RESTful
10 16 (21.05%) Scala
10 16 (21.05%) Hadoop
10 16 (21.05%) Apache Hive
10 16 (21.05%) HBase
10 16 (21.05%) Talend
10 16 (21.05%) Hortonworks
10 16 (21.05%) Cloudera
10 16 (21.05%) Oozie
10 16 (21.05%) Opscode Chef
10 16 (21.05%) Kafka
10 16 (21.05%) Apache Flume
10 16 (21.05%) Big Data
10 16 (21.05%) Analytics
10 16 (21.05%) Sqoop

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 16 (21.05%) Apache Spark
2 11 (14.47%) Apache
3 9 (11.84%) nginx
4 8 (10.53%) Tomcat
5 7 (9.21%) OpenStack
6 5 (6.58%) Elasticsearch
6 5 (6.58%) WebLogic
7 4 (5.26%) Jetty
8 3 (3.95%) Confluence
9 2 (2.63%) IBM Domino
9 2 (2.63%) IIS
9 2 (2.63%) MS Exchange
10 1 (1.32%) JBoss
Cloud Services
1 23 (30.26%) Amazon AWS
2 16 (21.05%) Google Tag Manager
3 10 (13.16%) Amazon CloudWatch
3 10 (13.16%) Cloud Computing
3 10 (13.16%) Microsoft Azure
4 8 (10.53%) AWS CloudFormation
5 6 (7.89%) Google Cloud Platform
6 5 (6.58%) OpenShift
7 3 (3.95%) Amazon EC2
7 3 (3.95%) GitHub
8 2 (2.63%) Amazon S3
8 2 (2.63%) IaaS
8 2 (2.63%) PaaS
8 2 (2.63%) Route 53
8 2 (2.63%) SaaS
8 2 (2.63%) Virtual Private Cloud
9 1 (1.32%) Amazon ELB
9 1 (1.32%) Amazon Glacier
9 1 (1.32%) Azure Active Directory
9 1 (1.32%) SoftLayer
Communications & Networking
1 19 (25.00%) DNS
2 16 (21.05%) Firewall
3 13 (17.11%) DHCP
4 12 (15.79%) Internet
4 12 (15.79%) NetScaler
4 12 (15.79%) SSL
5 11 (14.47%) Network Security
6 10 (13.16%) Wireless
7 5 (6.58%) VPN
8 4 (5.26%) VLAN
9 3 (3.95%) Software-Defined Networking
10 2 (2.63%) FTP
10 2 (2.63%) Kerberos
10 2 (2.63%) LAN
10 2 (2.63%) OSPF
10 2 (2.63%) SMTP
10 2 (2.63%) WAN
11 1 (1.32%) DVB
11 1 (1.32%) HTTP
11 1 (1.32%) Wi-Fi
Database & Business Intelligence
1 16 (21.05%) Apache Hive
1 16 (21.05%) Big Data
1 16 (21.05%) Data Lake
1 16 (21.05%) Hadoop
1 16 (21.05%) HBase
1 16 (21.05%) Impala
1 16 (21.05%) PostgreSQL
1 16 (21.05%) SQL Server
1 16 (21.05%) Sqoop
2 7 (9.21%) BusinessObjects
2 7 (9.21%) MongoDB
3 5 (6.58%) Apache Cassandra
3 5 (6.58%) Couchbase
4 3 (3.95%) MySQL
5 2 (2.63%) Amazon RDS
6 1 (1.32%) Azure SQL Database
6 1 (1.32%) NoSQL
Development Applications
1 12 (15.79%) Git (software)
2 10 (13.16%) Jenkins
3 5 (6.58%) git-flow
4 4 (5.26%) Vagrant
5 3 (3.95%) Artifactory
5 3 (3.95%) Bitbucket
5 3 (3.95%) JIRA
6 1 (1.32%) GitLab
6 1 (1.32%) Selenium
General
1 6 (7.89%) Telecoms
2 3 (3.95%) Manufacturing
3 2 (2.63%) Publishing
4 1 (1.32%) Advertising
4 1 (1.32%) Games
Job Titles
1 23 (30.26%) DevOps Engineer
2 16 (21.05%) Linux Engineer
3 15 (19.74%) Linux/Unix DevOps
4 13 (17.11%) Network Engineer
5 12 (15.79%) Linux DevOps Engineer
6 9 (11.84%) Infrastructure Engineer
6 9 (11.84%) Systems Engineer
7 8 (10.53%) Administrator
7 8 (10.53%) Linux Administrator
7 8 (10.53%) Linux Systems Administrator
7 8 (10.53%) Systems Administrator
8 6 (7.89%) AWS DevOps
8 6 (7.89%) AWS DevOps Engineer
8 6 (7.89%) AWS Engineer
8 6 (7.89%) Linux Systems Engineer
9 5 (6.58%) DevOps Systems Engineer
9 5 (6.58%) Splunk Engineer
10 3 (3.95%) 3rd Line Engineer
10 3 (3.95%) DevOps Administrator
10 3 (3.95%) Linux DevOps Administrator
Libraries, Frameworks & Software Standards
1 19 (25.00%) RESTful
1 19 (25.00%) Web Services
2 16 (21.05%) Kafka
2 16 (21.05%) SOAP
3 12 (15.79%) Regular Expression
4 10 (13.16%) Elastic Stack
5 6 (7.89%) MCollective
6 5 (6.58%) Sensu
7 4 (5.26%) LAMP
7 4 (5.26%) Node.js
8 3 (3.95%) boto
8 3 (3.95%) Socket.IO
8 3 (3.95%) YAML
9 1 (1.32%) .NET
9 1 (1.32%) HTML
9 1 (1.32%) HTML5
9 1 (1.32%) JSON
9 1 (1.32%) LDAP
9 1 (1.32%) POSIX
9 1 (1.32%) REST
Miscellaneous
1 21 (27.63%) Greenfield Project
2 5 (6.58%) Data Centre
2 5 (6.58%) Enterprise Software
2 5 (6.58%) Video on Demand
3 2 (2.63%) Hybrid Cloud
3 2 (2.63%) Private Cloud
3 2 (2.63%) Public Cloud
4 1 (1.32%) Computer Science
4 1 (1.32%) Digital TV
4 1 (1.32%) EMC VNX
4 1 (1.32%) Enterprise Cloud
4 1 (1.32%) Life Science
4 1 (1.32%) Linux Command Line
4 1 (1.32%) MPEG
4 1 (1.32%) Replication
4 1 (1.32%) STB
4 1 (1.32%) VxBlock/Vblock
Operating Systems
1 76 (100.00%) Linux
2 33 (43.42%) Red Hat Enterprise Linux
3 19 (25.00%) Ubuntu
4 12 (15.79%) Windows
5 9 (11.84%) Debian
6 3 (3.95%) Unix
7 2 (2.63%) Solaris
7 2 (2.63%) SUSE
7 2 (2.63%) Windows Server
7 2 (2.63%) Windows Server 2003
7 2 (2.63%) Windows Server 2008
7 2 (2.63%) Windows Server 2012
8 1 (1.32%) Amazon Linux
Processes & Methodologies
1 33 (43.42%) DevOps
2 16 (21.05%) Analytics
2 16 (21.05%) Data Strategy
2 16 (21.05%) Tag Management
2 16 (21.05%) Web Analytics
3 13 (17.11%) Agile Software Development
3 13 (17.11%) Load Balancing
4 12 (15.79%) Configuration Management
4 12 (15.79%) Email Filtering
4 12 (15.79%) Kalman Filter
4 12 (15.79%) Vulnerability Scanning
5 8 (10.53%) ITIL
5 8 (10.53%) Open Source
5 8 (10.53%) Scrum
6 7 (9.21%) Customer Requirements
6 7 (9.21%) Test Automation
7 5 (6.58%) BDD
7 5 (6.58%) Continuous Delivery
7 5 (6.58%) High Availability
7 5 (6.58%) Kanban
Programming Languages
1 29 (38.16%) Bash Shell
2 24 (31.58%) Python
3 22 (28.95%) Java
4 16 (21.05%) Scala
5 11 (14.47%) PowerShell
6 10 (13.16%) Perl
7 6 (7.89%) Ruby
8 5 (6.58%) PHP
8 5 (6.58%) SQL
9 4 (5.26%) C
9 4 (5.26%) C++
10 2 (2.63%) JavaScript
11 1 (1.32%) AWK
11 1 (1.32%) sed
Qualifications
1 2 (2.63%) CCNA
1 2 (2.63%) Cisco Certification
1 2 (2.63%) SC Cleared
1 2 (2.63%) Security Cleared
2 1 (1.32%) CCIE
2 1 (1.32%) CCNP
2 1 (1.32%) Degree
2 1 (1.32%) ISTQB
Quality Assurance & Compliance
1 4 (5.26%) QA
2 1 (1.32%) PMO
System Software
1 16 (21.05%) Apache Flume
1 16 (21.05%) HDFS
2 12 (15.79%) Docker
3 7 (9.21%) VMware ESXi
4 4 (5.26%) KVM
5 3 (3.95%) Active Directory
5 3 (3.95%) VMware Infrastructure
6 2 (2.63%) Hyper-V
6 2 (2.63%) vCloud
6 2 (2.63%) Virtual Machines
6 2 (2.63%) vSphere
7 1 (1.32%) iptables
7 1 (1.32%) NFS
7 1 (1.32%) Samba
7 1 (1.32%) VMware NSX
Systems Management
1 23 (30.26%) Puppet
2 19 (25.00%) Ansible
3 16 (21.05%) Oozie
3 16 (21.05%) Opscode Chef
4 7 (9.21%) logstash
4 7 (9.21%) Terraform
5 5 (6.58%) Grafana
5 5 (6.58%) Kibana
5 5 (6.58%) Nagios
5 5 (6.58%) vCenter Server
6 4 (5.26%) CFEngine
6 4 (5.26%) Packer
7 3 (3.95%) HAProxy
7 3 (3.95%) SELinux
8 2 (2.63%) Cacti
8 2 (2.63%) Icinga
8 2 (2.63%) SCCM
8 2 (2.63%) SCOM
8 2 (2.63%) SCOrch
8 2 (2.63%) SCVMM
Vendors
1 22 (28.95%) Google
2 20 (26.32%) Red Hat
3 16 (21.05%) Cloudera
3 16 (21.05%) Hortonworks
3 16 (21.05%) MapR
3 16 (21.05%) Salesforce.com
3 16 (21.05%) Talend
3 16 (21.05%) Tealium
4 12 (15.79%) Cisco
4 12 (15.79%) Citrix
4 12 (15.79%) Oracle
5 11 (14.47%) Dell
6 9 (11.84%) CheckPoint
6 9 (11.84%) Extreme Networks
7 7 (9.21%) CA
7 7 (9.21%) Splunk
8 6 (7.89%) VMware
9 5 (6.58%) Sun
10 3 (3.95%) EMC
10 3 (3.95%) Microsoft