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 25 August 2016 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
25 Aug 2016
Same period 2015 Same period 2014
CentOS Linux
Rank 219 301 321
Rank change year-on-year
+82 +20
Contract jobs citing CentOS 252 136 114
As % of all contract IT jobs located in London 1.09% 0.57% 0.47%
As % of the Operating Systems category 5.27% 2.67% 2.07%
Number of daily rates quoted 157 84 87
Median daily rate £505 £425 £410
Median daily rate % change year-on-year
+18.82% +3.65%
90% offered a daily rate of more than £400 £325 £350
10% offered a daily rate of more than £600 £550 £525
UK excluding London median daily rate £425 £338 £375
% change year-on-year
+25.92% -10.00%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £13.50 £36.00 £18.75
% change year-on-year
-62.50% +92.00%
CentOS
England

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
4781 5088 5502
As % of all contract IT jobs located in London 20.77% 21.43% 22.69%
Number of daily rates quoted 3351 3474 3601
Median daily rate £450 £400 £400
Median daily rate % change year-on-year
+12.50% -
90% offered a daily rate of more than £235 £185 £175
10% offered a daily rate of more than £575 £550 £550
UK excluding London median daily rate £350 £350 £320
% change year-on-year
- +9.37%
Number of hourly rates quoted 95 145 246
Median hourly rate £15.00 £17.75 £15.50
Median hourly rate % change year-on-year
-15.49% +14.51%
90% offered a hourly rate of more than £11.00 £12.61 £11.50
10% offered a hourly rate of more than £42.50 £43.50 £32.10
UK excluding London median hourly rate £16.50 £17.00 £16.00
% change year-on-year
-2.94% +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 25 August 2016.

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 25 August 2016. 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
(Click see detailed
statistics and trends)
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 +48 24 £475 +11.76% 6
Croydon 0 23 £463 +2.77% 1
Harrow - 3 £500 - 1
Barnet - 1 £400 -
Bromley - 1 £475 -
Canary Wharf - 1 £375 -
CentOS
England

CentOS
Top 30 Related IT Skills in London

For the 6 months to 25 August 2016, 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.

1 425 (100.00%) Linux
2 330 (77.65%) DevOps
3 249 (58.59%) Puppet
4 223 (52.47%) Agile Software Development
5 209 (49.18%) Jenkins
5 209 (49.18%) Ansible
6 206 (48.47%) Amazon AWS
7 201 (47.29%) Continuous Integration
8 178 (41.88%) Configuration Management
9 174 (40.94%) Docker
10 170 (40.00%) Red Hat
11 166 (39.06%) Git (software)
12 161 (37.88%) Red Hat Enterprise Linux
12 161 (37.88%) Ruby
13 149 (35.06%) VMware
14 148 (34.82%) Apache
15 144 (33.88%) PostgreSQL
16 137 (32.24%) Bash Shell
17 128 (30.12%) Ubuntu
18 127 (29.88%) Security Cleared
18 127 (29.88%) JIRA
19 126 (29.65%) Continuous Delivery
20 124 (29.18%) Python
21 123 (28.94%) Confluence
22 119 (28.00%) Scrum
23 114 (26.82%) SC Cleared
23 114 (26.82%) Kubernetes
24 105 (24.71%) DNS
25 104 (24.47%) Java
26 102 (24.00%) Terraform

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
1 148 (34.82%) Apache
2 123 (28.94%) Confluence
3 69 (16.24%) Elasticsearch
4 62 (14.59%) OpenStack
5 59 (13.88%) Tomcat
6 34 (8.00%) nginx
7 27 (6.35%) JBoss
8 18 (4.24%) Mule ESB
9 15 (3.53%) Jetty
10 14 (3.29%) WildFly
11 13 (3.06%) IIS
12 9 (2.12%) Apache Spark
13 5 (1.18%) MediaWiki
14 4 (0.94%) Exchange Server 2010
14 4 (0.94%) MS Exchange
15 3 (0.71%) Moodle
16 1 (0.24%) Apache Pig
16 1 (0.24%) ColdFusion
16 1 (0.24%) SharePoint
16 1 (0.24%) WebSphere
Applications
1 67 (15.76%) HipChat
2 2 (0.47%) MS Excel
2 2 (0.47%) MS Office
3 1 (0.24%) MS PowerPoint
3 1 (0.24%) MS Project
Business Applications
1 5 (1.18%) SAP Oil and Gas
Cloud Services
1 206 (48.47%) Amazon AWS
2 22 (5.18%) GitHub
3 19 (4.47%) Amazon EC2
4 16 (3.76%) IaaS
5 14 (3.29%) Microsoft Azure
6 11 (2.59%) Google Cloud Platform
7 10 (2.35%) AWS CloudFormation
8 8 (1.88%) Amazon S3
9 6 (1.41%) AWS Elastic Beanstalk
10 5 (1.18%) Google Apps
10 5 (1.18%) PaaS
10 5 (1.18%) SaaS
11 3 (0.71%) Amazon CloudWatch
11 3 (0.71%) Rackspace Cloud
11 3 (0.71%) Virtual Private Cloud
12 2 (0.47%) Amazon ElastiCache
12 2 (0.47%) Amazon EMR
12 2 (0.47%) Amazon SQS
12 2 (0.47%) CloudFront
12 2 (0.47%) Route 53
Communications & Networking
1 105 (24.71%) DNS
2 69 (16.24%) SSH
3 65 (15.29%) OpenLDAP
4 61 (14.35%) OpenVPN
5 47 (11.06%) VPN
6 39 (9.18%) Firewall
7 30 (7.06%) TCP/IP
8 28 (6.59%) LDAP
9 19 (4.47%) Reverse Proxy
10 18 (4.24%) DMZ
11 16 (3.76%) SAN
12 10 (2.35%) Fibre Channel
12 10 (2.35%) Internet
12 10 (2.35%) SNMP
12 10 (2.35%) SSL
13 9 (2.12%) FTP
13 9 (2.12%) LAN
14 8 (1.88%) Network Security
14 8 (1.88%) WAN
15 7 (1.65%) DHCP
Database & Business Intelligence
1 144 (33.88%) PostgreSQL
2 82 (19.29%) Hadoop
3 80 (18.82%) MySQL
4 43 (10.12%) MongoDB
5 42 (9.88%) NoSQL
6 17 (4.00%) Redis
7 16 (3.76%) SQL Server
8 15 (3.53%) Relational Database
9 8 (1.88%) HBase
10 7 (1.65%) Amazon RDS
11 5 (1.18%) Big Data
12 4 (0.94%) RDBMS
13 3 (0.71%) SQL Server 2012
14 2 (0.47%) Amazon DynamoDB
14 2 (0.47%) Amazon Redshift
14 2 (0.47%) Apache Cassandra
14 2 (0.47%) InfluxDB
14 2 (0.47%) MariaDB
15 1 (0.24%) Data Lake
15 1 (0.24%) Oracle Database
Development Applications
1 209 (49.18%) Jenkins
2 166 (39.06%) Git (software)
3 127 (29.88%) JIRA
4 101 (23.76%) Maven
5 84 (19.76%) Sonatype Nexus
6 79 (18.59%) Ant
7 70 (16.47%) SonarQube
8 69 (16.24%) JIRA Agile
9 60 (14.12%) Bitbucket
10 58 (13.65%) JUnit
10 58 (13.65%) Liquibase
11 23 (5.41%) Subversion
12 21 (4.94%) Gradle
12 21 (4.94%) Mercurial
13 19 (4.47%) Gerrit
14 15 (3.53%) GitLab
15 13 (3.06%) Atlassian Bamboo
15 13 (3.06%) Hudson
16 12 (2.82%) Artifactory
16 12 (2.82%) TeamCity
General
1 33 (7.76%) Finance
2 16 (3.76%) Retail
3 13 (3.06%) Publishing
4 10 (2.35%) Games
5 9 (2.12%) Telecoms
6 7 (1.65%) Back Office
6 7 (1.65%) Marketing
7 6 (1.41%) Front Office
7 6 (1.41%) Legal
7 6 (1.41%) Manufacturing
8 5 (1.18%) Electronics
9 4 (0.94%) Banking
10 1 (0.24%) Financial Institution
Job Titles
1 215 (50.59%) DevOps Engineer
2 84 (19.76%) Linux Engineer
3 75 (17.65%) Linux/Unix DevOps
4 63 (14.82%) Senior DevOps
5 58 (13.65%) Linux DevOps Engineer
6 54 (12.71%) Senior DevOps Engineer
7 53 (12.47%) AWS DevOps
8 43 (10.12%) AWS Engineer
9 39 (9.18%) Administrator
10 38 (8.94%) Continuous Deployment Engineer
11 37 (8.71%) Consultant
12 33 (7.76%) DevOps Consultant
13 30 (7.06%) Systems Administrator
14 28 (6.59%) Lead DevOps
15 25 (5.88%) Linux Administrator
16 19 (4.47%) Developer
16 19 (4.47%) Linux Systems Administrator
17 16 (3.76%) Senior Linux Engineer
18 15 (3.53%) Senior Consultant
19 14 (3.29%) Systems Engineer
Libraries, Frameworks & Software Standards
1 74 (17.41%) ELK Stack
2 63 (14.82%) Software Packaging
3 59 (13.88%) MCollective
4 51 (12.00%) LAMP
5 47 (11.06%) Web Services
6 26 (6.12%) LAPP Stack
7 21 (4.94%) LEMP Stack
8 18 (4.24%) RabbitMQ
9 17 (4.00%) RESTful
10 15 (3.53%) J2EE
11 13 (3.06%) REST
12 10 (2.35%) Spring
12 10 (2.35%) XML
13 9 (2.12%) ActiveMQ
13 9 (2.12%) Apache Camel
13 9 (2.12%) Node.js
14 7 (1.65%) Grails
14 7 (1.65%) JAX-RS
14 7 (1.65%) Spring Boot
15 5 (1.18%) Java EE
Miscellaneous
1 32 (7.53%) Public Cloud
2 15 (3.53%) Clustering
2 15 (3.53%) Mobile App
2 15 (3.53%) Private Cloud
3 13 (3.06%) Data Centre
4 12 (2.82%) Management Information System
5 9 (2.12%) Enterprise Software
5 9 (2.12%) Visualisation
6 8 (1.88%) Digital Media
7 6 (1.41%) Analytical Skills
7 6 (1.41%) Hedge funds
7 6 (1.41%) Hybrid Cloud
7 6 (1.41%) Replication
8 5 (1.18%) Enterprise Cloud
8 5 (1.18%) PlayStation
8 5 (1.18%) Wiki
9 4 (0.94%) Computer Science
9 4 (0.94%) Derivative
9 4 (0.94%) Fintech
10 3 (0.71%) User Experience
Operating Systems
1 425 (100.00%) Linux
2 161 (37.88%) Red Hat Enterprise Linux
3 128 (30.12%) Ubuntu
4 82 (19.29%) Windows
5 39 (9.18%) Unix
6 35 (8.24%) Fedora
7 26 (6.12%) Windows Server
8 19 (4.47%) Debian
9 16 (3.76%) Windows Server 2012
10 14 (3.29%) Windows Server 2003
11 13 (3.06%) CoreOS
11 13 (3.06%) Windows Server 2008
12 11 (2.59%) Mac OS X
12 11 (2.59%) Solaris
12 11 (2.59%) SUSE
13 5 (1.18%) Android
13 5 (1.18%) Apple iOS
13 5 (1.18%) Mac OS X Server
13 5 (1.18%) VMS
13 5 (1.18%) Windows Mobile
Processes & Methodologies
1 330 (77.65%) DevOps
2 223 (52.47%) Agile Software Development
3 201 (47.29%) Continuous Integration
4 178 (41.88%) Configuration Management
5 126 (29.65%) Continuous Delivery
6 119 (28.00%) Scrum
7 65 (15.29%) Service Management
8 61 (14.35%) Identity Management
9 55 (12.94%) Workflow
10 54 (12.71%) Case Management
10 54 (12.71%) Open Source
11 52 (12.24%) Coaching
11 52 (12.24%) Load Balancing
12 39 (9.18%) Continuous Deployment
12 39 (9.18%) Stakeholder Management
13 27 (6.35%) SDLC
14 26 (6.12%) Migration
15 23 (5.41%) High Availability
15 23 (5.41%) Release Management
16 22 (5.18%) SOA
Programming Languages
1 161 (37.88%) Ruby
2 137 (32.24%) Bash Shell
3 124 (29.18%) Python
4 104 (24.47%) Java
5 90 (21.18%) Perl
6 75 (17.65%) Shell Script
7 52 (12.24%) PHP
8 24 (5.65%) SQL
9 19 (4.47%) Groovy
10 18 (4.24%) JavaScript
11 16 (3.76%) PowerShell
12 7 (1.65%) AWK
12 7 (1.65%) sed
13 6 (1.41%) Go
14 3 (0.71%) C#
15 2 (0.47%) C
16 1 (0.24%) Korn
16 1 (0.24%) Pig Latin
16 1 (0.24%) R
16 1 (0.24%) Scala
Qualifications
1 127 (29.88%) Security Cleared
2 114 (26.82%) SC Cleared
3 31 (7.29%) CTC Cleared
4 23 (5.41%) BPSS Clearance
5 9 (2.12%) CCNA
5 9 (2.12%) Cisco Certification
6 7 (1.65%) Degree
7 3 (0.71%) CCNP
8 2 (0.47%) BC Cleared
8 2 (0.47%) CCDA
8 2 (0.47%) CCIE
9 1 (0.24%) CCSA
9 1 (0.24%) CCSE
9 1 (0.24%) MCSE
9 1 (0.24%) MCTS
9 1 (0.24%) Microsoft Certification
9 1 (0.24%) RHCE
Quality Assurance & Compliance
1 8 (1.88%) QA
2 4 (0.94%) PCI DSS
3 3 (0.71%) Disclosure Scotland
4 1 (0.24%) HMG Security Policy Framework
4 1 (0.24%) SLA
System Software
1 174 (40.94%) Docker
2 83 (19.53%) vCloud
3 64 (15.06%) VMware Infrastructure
4 63 (14.82%) Postfix
5 60 (14.12%) Squid
6 43 (10.12%) Active Directory
7 40 (9.41%) Virtual Machines
8 26 (6.12%) KVM
9 19 (4.47%) Xen
10 16 (3.76%) VMware ESXi
11 14 (3.29%) Samba
12 10 (2.35%) iptables
13 9 (2.12%) Hyper-V
14 8 (1.88%) XenServer
15 7 (1.65%) StorNext
16 6 (1.41%) VirtualBox
17 5 (1.18%) NFS
17 5 (1.18%) vSphere
18 4 (0.94%) DFS Replication
19 3 (0.71%) oVirt
Systems Management
1 249 (58.59%) Puppet
2 209 (49.18%) Ansible
3 114 (26.82%) Kubernetes
4 102 (24.00%) Terraform
5 100 (23.53%) ZABBIX
6 94 (22.12%) logstash
7 90 (21.18%) Kibana
8 78 (18.35%) Opscode Chef
9 63 (14.82%) Rancher
10 34 (8.00%) Nagios
11 30 (7.06%) HAProxy
12 25 (5.88%) Salt
13 20 (4.71%) Packer
14 15 (3.53%) SCCM
15 14 (3.29%) Rundeck
16 10 (2.35%) Zenoss
17 8 (1.88%) vRealize
18 7 (1.65%) Oracle ZFS
19 6 (1.41%) CFEngine
20 5 (1.18%) Norton AntiVirus
Vendors
1 170 (40.00%) Red Hat
2 149 (35.06%) VMware
3 97 (22.82%) Atlassian
4 72 (16.94%) Oracle
5 70 (16.47%) Sonatype
6 27 (6.35%) Microsoft
7 23 (5.41%) Cisco
8 19 (4.47%) EMC
8 19 (4.47%) NetApp
9 16 (3.76%) Google
10 15 (3.53%) Dell
11 14 (3.29%) Citrix
12 12 (2.82%) Black Duck
12 12 (2.82%) Veracode
13 9 (2.12%) Apple
13 9 (2.12%) HP
13 9 (2.12%) Symantec
14 8 (1.88%) Splunk
15 7 (1.65%) New Relic
15 7 (1.65%) ServiceNow
London
Austin Fraser
Rate: £350 - £400 per day
Posted: 6 hours ago
London
Testing Circle Ltd
Rate: £0.00 per annum
Posted: 5 hours ago
London
Stafford-Sharp Associates
Rate: £425.00 - £500.00 per annum
Posted: 6 hours ago
London
Senitor Associates
Rate: £360 - £400 per day
Posted: 3 days ago
West London
Talent International
Rate: £400 - £500 per day
Posted: 3 days ago
City, London
TEKsystems
Rate: £495.50 per day
Posted: 9 hours ago
London
E-synergy Solutions
Rate: £450 - £500 per annum
Posted: 2 days ago
London
Senitor Associates
Rate: £360 - £400 per day
Posted: 3 days ago
Croydon, Surrey
LA International
Rate: £450 - £500 per day
Posted: 2 days ago
London
Salt
Rate: £400 - £500 per day
Posted: 2 days ago
City, London
Nigel Frank International Ltd
Rate: £500 - £700 per annum
Posted: 3 days ago
London
LA International
Rate: £400 - £610 per day + negotiable
Posted: 6 days ago
City, London
Ebury
Rate: £350.00 - £371.00 per day
Posted: 6 days ago