The table below looks at the statistics for CentOS skills in IT contracts advertised for the London region. Included is a guide to the contractor rates offered in IT contracts that have cited CentOS over the 3 months to 26 February 2017 with a comparison to the same period over the previous 2 years.

Note that daily contractor rates and hourly contractor rates are treated separately. When calculating average contractor rates, daily rates are not derived from quoted hourly rates or vice versa.

3 months to
26 Feb 2017
Same period 2016 Same period 2015
CentOS Linux
England / London
Rank 248 269 309
Rank change year-on-year
+21 +40
Contract jobs citing CentOS 153 148 110
As % of all contract IT jobs located in London 0.80% 0.69% 0.52%
As % of the Operating Systems category 3.94% 3.47% 2.27%
Number of daily rates quoted 115 100 75
Median daily rate £469 £463 £450
Median daily rate % change year-on-year
+1.35% +2.77%
90% offered a daily rate of more than £305 £365 £391
10% offered a daily rate of more than £566 £550 £545
UK excluding London median daily rate £450 £430 £375
% change year-on-year
+4.65% +14.66%
Number of hourly rates quoted 0 3 0
Median hourly rate - £50.00 -
UK excluding London median hourly rate £16.38 £8.50 £47.50
% change year-on-year
+92.64% -82.10%

The following table is for comparison with the above and provides statistics for the entire Operating Systems category in contract jobs advertised in the London region.

Operating Systems Category
London
Contract IT job ads with a match in the
Operating Systems category
3881 4270 4836
As % of all contract IT jobs located in London 20.30% 19.91% 22.72%
Number of daily rates quoted 2752 2942 3331
Median daily rate £450 £425 £413
Median daily rate % change year-on-year
+5.88% +3.03%
90% offered a daily rate of more than £218 £213 £180
10% offered a daily rate of more than £600 £575 £550
UK excluding London median daily rate £365 £353 £338
% change year-on-year
+3.54% +4.44%
Number of hourly rates quoted 80 139 149
Median hourly rate £19.00 £17.00 £17.87
Median hourly rate % change year-on-year
+11.76% -4.84%
90% offered a hourly rate of more than £12.78 £11.50 £12.50
10% offered a hourly rate of more than £47.50 £47.83 £42.50
UK excluding London median hourly rate £15.25 £17.00 £16.00
% change year-on-year
-10.29% +6.25%

CentOS
Jobs Demand Trend in London

The demand trend of contract jobs across the London region citing CentOS as a proportion of all IT contracts with a match in the Operating Systems category.

CentOS Jobs Demand Trend in London

CentOS
Daily Rate Trend in London

This chart provides the 3-month moving average for daily rates quoted in IT contract jobs citing CentOS across the London region.

CentOS Daily Rate Trend in London

CentOS
Daily Rate Histogram in London

This chart provides a histogram of daily rates quoted in contract IT jobs citing CentOS across the London region over the 3 months to 26 February 2017.

CentOS Daily Rate Histogram in London

CentOS
Hourly Rate Trend in London

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

CentOS Hourly Rate Trend in London

CentOS
Contract Job Locations in 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 London region over the 3 months to 26 February 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
City of London +11 20 £416 -8.71% 8
Croydon +7 9 £468 +10.00%
Hammersmith -2 4 £525 -
Westminster +3 1 £550 +20.61%
CentOS
England

CentOS
Top 30 Related IT Skills in London

For the 6 months to 26 February 2017, 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 London region with a requirement for CentOS.

1 378 (100.00%) Linux
2 225 (59.52%) DevOps
3 197 (52.12%) Puppet
4 191 (50.53%) Red Hat Enterprise Linux
5 179 (47.35%) Jenkins
6 163 (43.12%) Ansible
7 160 (42.33%) Docker
8 159 (42.06%) Bash Shell
8 159 (42.06%) Python
8 159 (42.06%) Agile Software Development
9 154 (40.74%) Amazon AWS
10 152 (40.21%) Red Hat
11 142 (37.57%) VMware
12 138 (36.51%) Ruby
13 137 (36.24%) Git (software)
14 132 (34.92%) Continuous Integration
15 130 (34.39%) Configuration Management
16 129 (34.13%) Ubuntu
17 128 (33.86%) Security Cleared
18 119 (31.48%) Apache
19 116 (30.69%) SC Cleared
20 103 (27.25%) Java
21 101 (26.72%) PostgreSQL
22 88 (23.28%) Kubernetes
23 85 (22.49%) Scrum
24 84 (22.22%) VMware Infrastructure
25 77 (20.37%) Terraform
26 76 (20.11%) DNS
27 75 (19.84%) Perl
28 71 (18.78%) Continuous Delivery

CentOS
Top Related IT Skills in 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
1 119 (31.48%) Apache
2 64 (16.93%) Confluence
3 54 (14.29%) Elasticsearch
3 54 (14.29%) Tomcat
4 53 (14.02%) nginx
5 31 (8.20%) OpenStack
6 21 (5.56%) IIS
7 20 (5.29%) Jetty
7 20 (5.29%) WildFly
8 18 (4.76%) Mule ESB
9 7 (1.85%) Apache Spark
9 7 (1.85%) JBoss
10 5 (1.32%) Apache Pig
10 5 (1.32%) Apache Solr
10 5 (1.32%) WebSphere
11 4 (1.06%) CMS
12 2 (0.53%) ColdFusion
13 1 (0.26%) concrete5
13 1 (0.26%) WordPress
Applications
1 32 (8.47%) HipChat
2 2 (0.53%) Adobe Creative Suite
3 1 (0.26%) Adobe Illustrator
3 1 (0.26%) Photoshop
Business Applications
1 2 (0.53%) SAP Oil and Gas
2 1 (0.26%) Magento
Cloud Services
1 154 (40.74%) Amazon AWS
2 32 (8.47%) Microsoft Azure
3 28 (7.41%) Amazon EC2
4 22 (5.82%) Amazon S3
4 22 (5.82%) GitHub
5 15 (3.97%) AWS CloudFormation
6 14 (3.70%) Amazon CloudWatch
7 13 (3.44%) Route 53
8 9 (2.38%) Virtual Private Cloud
9 8 (2.12%) AWS CloudTrail
9 8 (2.12%) Cloud Computing
10 7 (1.85%) Amazon ELB
10 7 (1.85%) Amazon SQS
10 7 (1.85%) AWS Lambda
11 6 (1.59%) Azure Active Directory
12 4 (1.06%) Bluemix
12 4 (1.06%) IBM Cloud
13 3 (0.79%) Akamai
13 3 (0.79%) G Suite
13 3 (0.79%) IaaS
Communications & Networking
1 76 (20.11%) DNS
2 65 (17.20%) VPN
3 49 (12.96%) Firewall
4 48 (12.70%) LDAP
5 38 (10.05%) SSH
6 37 (9.79%) Reverse Proxy
7 35 (9.26%) OpenVPN
8 34 (8.99%) TCP/IP
9 32 (8.47%) OpenLDAP
10 15 (3.97%) HTTP
11 14 (3.70%) IPsec
12 12 (3.17%) Cisco Nexus
13 10 (2.65%) DMZ
13 10 (2.65%) Kerberos
13 10 (2.65%) SSL
14 9 (2.38%) SAN
15 6 (1.59%) Cisco ASA
16 5 (1.32%) DHCP
16 5 (1.32%) Internet
17 4 (1.06%) X.509
Database & Business Intelligence
1 101 (26.72%) PostgreSQL
2 66 (17.46%) MySQL
3 54 (14.29%) Hadoop
4 47 (12.43%) NoSQL
5 20 (5.29%) SQL Server
6 19 (5.03%) Oracle Database
7 17 (4.50%) Big Data
8 16 (4.23%) MariaDB
8 16 (4.23%) Relational Database
9 15 (3.97%) Amazon RDS
9 15 (3.97%) Apache Cassandra
9 15 (3.97%) MongoDB
10 14 (3.70%) Apache Hive
10 14 (3.70%) Oracle Database 11g
11 7 (1.85%) Amazon DynamoDB
11 7 (1.85%) SQL Server 2012
12 6 (1.59%) Impala
13 5 (1.32%) Redis
14 3 (0.79%) HBase
14 3 (0.79%) Riak
Development Applications
1 179 (47.35%) Jenkins
2 137 (36.24%) Git (software)
3 68 (17.99%) JIRA
4 65 (17.20%) Maven
5 40 (10.58%) JIRA Agile
6 38 (10.05%) Sonatype Nexus
7 37 (9.79%) JUnit
7 37 (9.79%) SonarQube
8 34 (8.99%) Ant
9 32 (8.47%) Liquibase
10 26 (6.88%) Bitbucket
11 25 (6.61%) Gerrit
12 24 (6.35%) GitLab
13 19 (5.03%) Atlassian Bamboo
13 19 (5.03%) Mercurial
14 15 (3.97%) TeamCity
15 13 (3.44%) Vagrant
16 8 (2.12%) Octopus Deploy
17 6 (1.59%) Artifactory
17 6 (1.59%) Gradle
General
1 33 (8.73%) Finance
2 17 (4.50%) Law
3 16 (4.23%) Telecoms
4 5 (1.32%) Banking
4 5 (1.32%) Retail
5 4 (1.06%) Legal
5 4 (1.06%) Marketing
6 3 (0.79%) Back Office
7 2 (0.53%) Electronics
7 2 (0.53%) Manufacturing
8 1 (0.26%) Front Office
8 1 (0.26%) Investment Banking
8 1 (0.26%) Pharmaceutical
8 1 (0.26%) Publishing
Job Titles
1 153 (40.48%) DevOps Engineer
2 73 (19.31%) AWS DevOps
3 58 (15.34%) Administrator
4 52 (13.76%) AWS Engineer
5 48 (12.70%) Consultant
6 45 (11.90%) Systems Administrator
7 44 (11.64%) Linux Administrator
7 44 (11.64%) Linux Engineer
8 42 (11.11%) Linux/Unix DevOps
9 38 (10.05%) DevOps Consultant
9 38 (10.05%) Linux Systems Administrator
10 35 (9.26%) Senior DevOps
11 28 (7.41%) AWS Consultant
11 28 (7.41%) Linux DevOps Engineer
12 27 (7.14%) Developer
13 20 (5.29%) DBA
14 19 (5.03%) Senior DevOps Engineer
15 18 (4.76%) Senior Consultant
15 18 (4.76%) Senior DevOps Consultant
16 12 (3.17%) Systems Engineer
Libraries, Frameworks & Software Standards
1 61 (16.14%) Elastic Stack
2 41 (10.85%) MCollective
3 38 (10.05%) LAMP
4 33 (8.73%) Web Services
5 32 (8.47%) Software Packaging
6 27 (7.14%) LAPP Stack
7 24 (6.35%) HTML
8 23 (6.08%) CSS
9 22 (5.82%) JSON
10 21 (5.56%) LEMP Stack
11 20 (5.29%) REST
12 19 (5.03%) XML
13 18 (4.76%) RabbitMQ
14 17 (4.50%) XSLT
15 16 (4.23%) Kafka
15 16 (4.23%) Node.js
15 16 (4.23%) RSS
16 12 (3.17%) PostGIS
17 9 (2.38%) .NET
18 8 (2.12%) ActiveMQ
Miscellaneous
1 32 (8.47%) Public Cloud
2 27 (7.14%) Data Centre
3 21 (5.56%) Linux Command Line
4 16 (4.23%) Web 2.0
5 14 (3.70%) Analytical Skills
6 13 (3.44%) Clustering
7 9 (2.38%) PKI
8 8 (2.12%) Computer Science
8 8 (2.12%) Management Information System
9 6 (1.59%) Mobile App
9 6 (1.59%) Private Cloud
10 4 (1.06%) Algorithms
10 4 (1.06%) Spread Betting
11 3 (0.79%) CMDB
11 3 (0.79%) Replication
11 3 (0.79%) Video on Demand
12 2 (0.53%) HP StoreVirtual
12 2 (0.53%) Hybrid Cloud
12 2 (0.53%) RIA
12 2 (0.53%) User Experience
Operating Systems
1 378 (100.00%) Linux
2 191 (50.53%) Red Hat Enterprise Linux
3 129 (34.13%) Ubuntu
4 64 (16.93%) Windows
5 37 (9.79%) Windows Server
6 35 (9.26%) Unix
7 17 (4.50%) Windows Server 2012
8 15 (3.97%) Debian
8 15 (3.97%) SUSE
9 13 (3.44%) RancherOS
9 13 (3.44%) VyOS
10 10 (2.65%) Fedora
11 9 (2.38%) Windows Server 2008
12 8 (2.12%) Windows Server 2003
13 6 (1.59%) Windows 2000
14 3 (0.79%) Android
14 3 (0.79%) Apple iOS
14 3 (0.79%) Mac OS X
14 3 (0.79%) Mac OS X Server
15 2 (0.53%) Solaris
Processes & Methodologies
1 225 (59.52%) DevOps
2 159 (42.06%) Agile Software Development
3 132 (34.92%) Continuous Integration
4 130 (34.39%) Configuration Management
5 85 (22.49%) Scrum
6 71 (18.78%) Continuous Delivery
7 56 (14.81%) Load Balancing
8 53 (14.02%) Service Management
9 35 (9.26%) Workflow
10 32 (8.47%) Identity Management
10 32 (8.47%) Open Source
11 28 (7.41%) Migration
12 27 (7.14%) Mentoring
12 27 (7.14%) Performance Tuning
12 27 (7.14%) Stakeholder Management
13 22 (5.82%) OOP
14 21 (5.56%) ITIL
14 21 (5.56%) Performance Monitoring
15 20 (5.29%) Coaching
16 19 (5.03%) OO
Programming Languages
1 159 (42.06%) Bash Shell
1 159 (42.06%) Python
2 138 (36.51%) Ruby
3 103 (27.25%) Java
4 75 (19.84%) Perl
5 48 (12.70%) Shell Script
6 40 (10.58%) JavaScript
7 35 (9.26%) PHP
8 27 (7.14%) SQL
9 25 (6.61%) C
10 23 (6.08%) PowerShell
11 19 (5.03%) C#
12 13 (3.44%) Groovy
13 6 (1.59%) Go
13 6 (1.59%) Scala
14 5 (1.32%) R
15 4 (1.06%) C++
16 3 (0.79%) C-shell
17 2 (0.53%) sed
17 2 (0.53%) VB
Qualifications
1 128 (33.86%) Security Cleared
2 116 (30.69%) SC Cleared
3 14 (3.70%) CTC Cleared
4 13 (3.44%) Degree
5 10 (2.65%) BPSS Clearance
5 10 (2.65%) DV Cleared
6 8 (2.12%) Cisco Certification
7 7 (1.85%) AWS Certification
7 7 (1.85%) Microsoft Certification
7 7 (1.85%) VMware Certified Professional (VCP)
8 6 (1.59%) MCP
9 4 (1.06%) BC Cleared
10 3 (0.79%) RHCE
11 2 (0.53%) CCNP
11 2 (0.53%) RHCSA
12 1 (0.26%) CCNA
12 1 (0.26%) MCSE
Quality Assurance & Compliance
1 23 (6.08%) QA
2 4 (1.06%) PCI DSS
3 3 (0.79%) Disclosure Scotland
4 1 (0.26%) PMO
System Software
1 160 (42.33%) Docker
2 84 (22.22%) VMware Infrastructure
3 41 (10.85%) Active Directory
4 39 (10.32%) Virtual Machines
5 38 (10.05%) Postfix
6 36 (9.52%) vCloud
7 35 (9.26%) Squid
8 17 (4.50%) Xen
9 11 (2.91%) KVM
9 11 (2.91%) VMware ESX
10 7 (1.85%) Hyper-V
11 6 (1.59%) Apache ZooKeeper
12 5 (1.32%) VMware ESXi
13 4 (1.06%) HDFS
13 4 (1.06%) VirtualBox
13 4 (1.06%) vSphere
14 2 (0.53%) Snort
14 2 (0.53%) Terminal Services
14 2 (0.53%) XenServer
15 1 (0.26%) NFS
Systems Management
1 197 (52.12%) Puppet
2 163 (43.12%) Ansible
3 88 (23.28%) Kubernetes
4 77 (20.37%) Terraform
5 70 (18.52%) ZABBIX
6 60 (15.87%) Kibana
7 59 (15.61%) logstash
8 52 (13.76%) Opscode Chef
9 39 (10.32%) HAProxy
10 38 (10.05%) Rancher
11 33 (8.73%) Docker Swarm
12 25 (6.61%) Nagios
13 20 (5.29%) Consul
14 19 (5.03%) Packer
15 11 (2.91%) yum
16 9 (2.38%) Symantec Endpoint Protection
17 8 (2.12%) PowerCLI
17 8 (2.12%) Salt
18 6 (1.59%) Hadoop YARN
18 6 (1.59%) Microsoft Clustering
Vendors
1 152 (40.21%) Red Hat
2 142 (37.57%) VMware
3 50 (13.23%) Atlassian
4 46 (12.17%) Oracle
5 35 (9.26%) Sonatype
6 24 (6.35%) AppDynamics
7 19 (5.03%) Cisco
8 17 (4.50%) Splunk
9 15 (3.97%) Microsoft
10 13 (3.44%) Vyatta
11 11 (2.91%) HP
12 9 (2.38%) Symantec
13 6 (1.59%) EMC
13 6 (1.59%) Google
13 6 (1.59%) Lumension
13 6 (1.59%) New Relic
13 6 (1.59%) Remedy
13 6 (1.59%) SolarWinds
13 6 (1.59%) Sybase
13 6 (1.59%) Trend Micro
London
onezeero.
Rate: £450 - £550 per day
Posted: 2 days ago
London
Senitor Associates
Rate: £375 - £400 per day
Posted: 5 days ago
City, London
Evolution Recruitment Solutions
Posted: 6 days ago
City, London
E-synergy Solutions
Rate: £450 - £550 per day
Posted: 5 days ago
City, London
Experis Ltd
Rate: £400.00 - £435.00 per day
Posted: 3 days ago
City, London
Parallel Consulting
Posted: 6 days ago
London
Experis Ltd
Posted: 3 days ago