Period
to 18 November 2017

The following table provides summary statistics for contract job vacancies advertised in Birmingham 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 18 November 2017 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
West Midlands > Birmingham
6 months to
18 Nov 2017
Same period 2016 Same period 2015
Rank 80 96 -
Rank change year-on-year +16 - +90
Contract jobs citing CentOS 12 5 0
As % of all contract IT jobs advertised in Birmingham 0.77% 0.33% -
As % of the Operating Systems category 3.99% 1.90% -
Number of daily rates quoted 4 2 0
Birmingham median daily rate £413 £400 -
Median daily rate % change year-on-year +3.13% - -
West Midlands median daily rate £425 £438 £306
% change year-on-year -2.86% +42.86% -12.50%
Number of hourly rates quoted 0 0 0
Birmingham median hourly rate - - -
West Midlands median hourly rate - - -

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 Birmingham with a requirement for operating system skills.

All Operating Systems
Birmingham
Contract vacancies with a requirement for operating system skills 301 263 210
As % of all contract IT jobs advertised in Birmingham 19.26% 17.17% 15.45%
Number of daily rates quoted 207 159 102
Birmingham median daily rate £325 £400 £300
Median daily rate % change year-on-year -18.75% +33.33% -14.29%
10th Percentile £159 £179 £152
90th Percentile £506 £550 £438
West Midlands median daily rate £365 £400 £338
% change year-on-year -8.75% +18.52% +5.47%
Number of hourly rates quoted 25 31 25
Birmingham median hourly rate £13.50 £14.00 £14.50
Median hourly rate % change year-on-year -3.57% -3.45% +4.54%
10th Percentile £8.39 £10.25 £10.63
90th Percentile £19.45 £19.50 £18.45
West Midlands median hourly rate £14.50 £14.00 £14.40
% change year-on-year +3.57% -2.78% -4.00%

CentOS
Job Vacancy Trend in Birmingham

Job postings citing CentOS as a percentage of all IT jobs advertised in Birmingham.

Job vacancy trend for CentOS in Birmingham

CentOS
Contractor Daily Rate Trend in Birmingham

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

Contractor daily rate trend for CentOS in Birmingham

CentOS
Contractor Daily Rate Histogram in Birmingham

The daily rate distribution of IT jobs citing CentOS in Birmingham over the 6 months to 18 November 2017.

Contractor daily rate histogram for CentOS in Birmingham

For the 6 months to 18 November 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 Birmingham region with a requirement for CentOS.

1 12 (100.00%) Linux
2 8 (66.67%) VMware
2 8 (66.67%) PostgreSQL
2 8 (66.67%) Continuous Integration
2 8 (66.67%) Puppet
2 8 (66.67%) DevOps
3 7 (58.33%) Ansible
3 7 (58.33%) Docker
3 7 (58.33%) Elasticsearch
3 7 (58.33%) Jenkins
3 7 (58.33%) Confluence
3 7 (58.33%) Elastic Stack
3 7 (58.33%) Terraform
3 7 (58.33%) Maven
3 7 (58.33%) JIRA
3 7 (58.33%) Git (software)
3 7 (58.33%) Amazon AWS
3 7 (58.33%) Scrum
3 7 (58.33%) Agile Software Development
3 7 (58.33%) Tomcat
3 7 (58.33%) Java
3 7 (58.33%) Configuration Management
4 6 (50.00%) Apache
4 6 (50.00%) HTTP
4 6 (50.00%) DNS
4 6 (50.00%) Ant
4 6 (50.00%) JUnit
4 6 (50.00%) SSH
4 6 (50.00%) Service Management
4 6 (50.00%) Stakeholder Management

CentOS
Co-occurring IT Skills in Birmingham 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 7 (58.33%) Confluence
1 7 (58.33%) Elasticsearch
1 7 (58.33%) Tomcat
2 6 (50.00%) Apache
3 2 (16.67%) JBoss
Cloud Services
1 7 (58.33%) Amazon AWS
2 6 (50.00%) Amazon CloudWatch
2 6 (50.00%) Amazon EC2
2 6 (50.00%) Amazon ELB
2 6 (50.00%) Amazon S3
2 6 (50.00%) Virtual Private Cloud
3 1 (8.33%) Microsoft Azure
Communications & Networking
1 6 (50.00%) DNS
1 6 (50.00%) HTTP
1 6 (50.00%) OpenLDAP
1 6 (50.00%) OpenVPN
1 6 (50.00%) SSH
Database & Business Intelligence
1 8 (66.67%) PostgreSQL
2 6 (50.00%) Amazon RDS
3 1 (8.33%) Big Data
3 1 (8.33%) Hadoop
3 1 (8.33%) MongoDB
3 1 (8.33%) Neo4j
3 1 (8.33%) Pentaho
Development Applications
1 7 (58.33%) Git (software)
1 7 (58.33%) Jenkins
1 7 (58.33%) JIRA
1 7 (58.33%) Maven
2 6 (50.00%) Ant
2 6 (50.00%) Bitbucket
2 6 (50.00%) JUnit
2 6 (50.00%) Liquibase
2 6 (50.00%) SonarQube
2 6 (50.00%) Sonatype Nexus
3 1 (8.33%) Talend Open Studio
Job Titles
1 8 (66.67%) DevOps Engineer
2 1 (8.33%) Administrator
2 1 (8.33%) Citrix Administrator
2 1 (8.33%) Citrix Systems Engineer
2 1 (8.33%) Consultant
2 1 (8.33%) Developer
2 1 (8.33%) Hadoop Developer
2 1 (8.33%) IT Engineer
2 1 (8.33%) Lead DevOps
2 1 (8.33%) Lead DevOps Engineer
2 1 (8.33%) Linux Consultant
2 1 (8.33%) Linux Systems Engineer
2 1 (8.33%) MongoDB Developer
2 1 (8.33%) Open Source Developer
2 1 (8.33%) Pentaho Developer
2 1 (8.33%) PostgreSQL Developer
2 1 (8.33%) Systems Administrator
2 1 (8.33%) Systems Engineer
2 1 (8.33%) VMWare Administrator
2 1 (8.33%) VMware Engineer
Libraries, Frameworks & Software Standards
1 7 (58.33%) Elastic Stack
2 6 (50.00%) MCollective
2 6 (50.00%) REST
3 2 (16.67%) ActiveMQ
4 1 (8.33%) AngularJS
4 1 (8.33%) Apache Camel
4 1 (8.33%) Apache CXF
4 1 (8.33%) D3.js
4 1 (8.33%) Drools
4 1 (8.33%) jBPM
4 1 (8.33%) Middleware
4 1 (8.33%) Node.js
4 1 (8.33%) Spring
4 1 (8.33%) Web Services
Miscellaneous
1 6 (50.00%) Linux Command Line
2 1 (8.33%) Greenfield Project
2 1 (8.33%) Public Cloud
Operating Systems
1 12 (100.00%) Linux
2 2 (16.67%) Debian
3 1 (8.33%) Ubuntu
3 1 (8.33%) Unix
3 1 (8.33%) Windows
Processes & Methodologies
1 8 (66.67%) Continuous Integration
1 8 (66.67%) DevOps
2 7 (58.33%) Agile Software Development
2 7 (58.33%) Configuration Management
2 7 (58.33%) Scrum
3 6 (50.00%) Coaching
3 6 (50.00%) Continuous Delivery
3 6 (50.00%) Load Balancing
3 6 (50.00%) Service Management
3 6 (50.00%) Stakeholder Management
4 2 (16.67%) SOA
5 1 (8.33%) Analytics
5 1 (8.33%) BDD
5 1 (8.33%) Big Data Analytics
5 1 (8.33%) Data Analytics
5 1 (8.33%) Microservices
5 1 (8.33%) Open Source
5 1 (8.33%) Open Source Development
5 1 (8.33%) TDD
5 1 (8.33%) Virtual Environments
Programming Languages
1 7 (58.33%) Java
2 6 (50.00%) Bash Shell
2 6 (50.00%) Groovy
3 1 (8.33%) Jython
3 1 (8.33%) PowerShell
3 1 (8.33%) Python
Qualifications
1 6 (50.00%) SC Cleared
1 6 (50.00%) Security Cleared
System Software
1 7 (58.33%) Docker
2 6 (50.00%) Postfix
2 6 (50.00%) Squid
2 6 (50.00%) vCloud
2 6 (50.00%) Virtual Machines
3 2 (16.67%) VMware Infrastructure
3 2 (16.67%) XenApp
Systems Management
1 8 (66.67%) Puppet
2 7 (58.33%) Ansible
2 7 (58.33%) Terraform
3 6 (50.00%) Docker Swarm
3 6 (50.00%) Kibana
3 6 (50.00%) Kubernetes
3 6 (50.00%) logstash
3 6 (50.00%) Rancher
3 6 (50.00%) Rsyslog
3 6 (50.00%) Sysdig
3 6 (50.00%) ZABBIX
Vendors
1 8 (66.67%) VMware
2 6 (50.00%) Sonatype
3 3 (25.00%) Red Hat
4 2 (16.67%) Citrix
5 1 (8.33%) Talend