Period
to 22 January 2019

The following table provides summary statistics for contract job vacancies advertised in Reading 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 22 January 2019 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
Berkshire > Reading
6 months to
22 Jan 2019
Same period 2018 Same period 2017
Rank 83 84 76
Rank change year-on-year +1 -8 +10
Contract jobs citing CentOS 14 3 20
As % of all contract IT jobs advertised in Reading 0.93% 0.24% 1.44%
As % of the Operating Systems category 4.55% 1.16% 8.33%
Number of daily rates quoted 12 3 18
Reading median daily rate £445 £451 £500
Median daily rate % change year-on-year -1.22% -9.90% +11.11%
10th Percentile £333 £430 £431
90th Percentile £575 £550 £625
Berkshire median daily rate £450 £575 £500
% change year-on-year -21.74% +15.00% +11.11%
Number of hourly rates quoted 0 0 0
Reading median hourly rate - - -
Berkshire median hourly rate - £18.00 £18.00

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 Reading with a requirement for operating system skills.

All Operating Systems
Reading
Contract vacancies with a requirement for operating system skills 308 259 240
As % of all contract IT jobs advertised in Reading 20.53% 20.89% 17.30%
Number of daily rates quoted 174 153 128
Reading median daily rate £425 £400 £385
Median daily rate % change year-on-year +6.25% +3.96% -3.81%
10th Percentile £143 £201 £213
90th Percentile £575 £550 £558
Berkshire median daily rate £400 £400 £375
% change year-on-year - +6.67% -6.25%
Number of hourly rates quoted 12 20 16
Reading median hourly rate £42.50 £17.50 £30.91
Median hourly rate % change year-on-year +142.86% -43.38% +0.03%
10th Percentile £20.00 £13.23 £11.00
90th Percentile £49.75 £47.50 £55.65
Berkshire median hourly rate £15.86 £13.20 £17.50
% change year-on-year +20.15% -24.57% -43.37%

CentOS
Job Vacancy Trend in Reading

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

Job vacancy trend for CentOS in Reading

CentOS
Contractor Daily Rate Trend in Reading

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

Contractor daily rate trend for CentOS in Reading

CentOS
Contractor Daily Rate Histogram in Reading

The daily rate distribution of IT jobs citing CentOS in Reading over the 6 months to 22 January 2019.

Contractor daily rate histogram for CentOS in Reading

For the 6 months to 22 January 2019, 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 Reading region with a requirement for CentOS.

1 14 (100.00%) Linux
2 11 (78.57%) Red Hat
3 10 (71.43%) Amazon AWS
3 10 (71.43%) DevOps
4 8 (57.14%) Python
5 7 (50.00%) Terraform
6 6 (42.86%) Puppet
7 5 (35.71%) Ansible
7 5 (35.71%) Web Services
8 4 (28.57%) Configuration Management
8 4 (28.57%) Docker
8 4 (28.57%) Bash Shell
8 4 (28.57%) Jenkins
8 4 (28.57%) Red Hat Enterprise Linux
9 3 (21.43%) Microsoft Azure
9 3 (21.43%) Security Cleared
9 3 (21.43%) Kubernetes
9 3 (21.43%) Java
10 2 (14.29%) MySQL
10 2 (14.29%) Apache
10 2 (14.29%) Windows
10 2 (14.29%) SSL
10 2 (14.29%) IPsec
10 2 (14.29%) VPN
10 2 (14.29%) LAMP
10 2 (14.29%) VMware
10 2 (14.29%) Fedora
10 2 (14.29%) Agile Software Development
10 2 (14.29%) Atlassian Bamboo
10 2 (14.29%) Btrfs

CentOS
Co-occurring IT Skills in Reading 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 2 (14.29%) Apache
2 1 (7.14%) CMS
2 1 (7.14%) Confluence
2 1 (7.14%) Elasticsearch
Cloud Services
1 10 (71.43%) Amazon AWS
2 3 (21.43%) Microsoft Azure
3 2 (14.29%) Amazon EC2
3 2 (14.29%) Amazon ELB
3 2 (14.29%) Amazon S3
3 2 (14.29%) Route 53
3 2 (14.29%) Virtual Private Cloud
4 1 (7.14%) Amazon CloudWatch
4 1 (7.14%) Amazon EMR
4 1 (7.14%) AWS CloudFormation
4 1 (7.14%) Datadog
4 1 (7.14%) Google Cloud Platform
Communications & Networking
1 2 (14.29%) IPsec
1 2 (14.29%) OpenVPN
1 2 (14.29%) SSL
1 2 (14.29%) VPN
2 1 (7.14%) HTTP
2 1 (7.14%) Kerberos
Database & Business Intelligence
1 2 (14.29%) MariaDB
1 2 (14.29%) MySQL
2 1 (7.14%) Amazon Athena
2 1 (7.14%) Amazon Redshift
2 1 (7.14%) Big Data
2 1 (7.14%) Electronic Patient Records
2 1 (7.14%) Hadoop
2 1 (7.14%) PostgreSQL
Development Applications
1 4 (28.57%) Jenkins
2 2 (14.29%) Atlassian Bamboo
2 2 (14.29%) Git (software)
3 1 (7.14%) HP UFT
3 1 (7.14%) JIRA
3 1 (7.14%) Octopus Deploy
3 1 (7.14%) Subversion
3 1 (7.14%) Travis CI
3 1 (7.14%) Vagrant
General
1 1 (7.14%) Electronics
1 1 (7.14%) Finance
1 1 (7.14%) Manufacturing
1 1 (7.14%) Marketing
1 1 (7.14%) Telecoms
Job Titles
1 9 (64.29%) DevOps Engineer
2 4 (28.57%) AWS DevOps
2 4 (28.57%) AWS DevOps Engineer
2 4 (28.57%) AWS Engineer
3 2 (14.29%) Cloud Engineer
3 2 (14.29%) Linux DevOps Engineer
3 2 (14.29%) Linux Engineer
3 2 (14.29%) Linux Scripter
3 2 (14.29%) Linux/Unix DevOps
4 1 (7.14%) Architect
4 1 (7.14%) Consultant
4 1 (7.14%) Developer
4 1 (7.14%) Infrastructure Architect
4 1 (7.14%) Lead Software Engineer
4 1 (7.14%) Software Support Engineer
4 1 (7.14%) Support Engineer
4 1 (7.14%) Technical Engineer
4 1 (7.14%) Technical Leader
4 1 (7.14%) Technical Support
4 1 (7.14%) Technical Support Engineer
Libraries, Frameworks & Software Standards
1 5 (35.71%) Web Services
2 2 (14.29%) Elastic Stack
2 2 (14.29%) LAMP
3 1 (7.14%) AngularJS
3 1 (7.14%) CSS
3 1 (7.14%) HTML
3 1 (7.14%) JSP
3 1 (7.14%) Middleware
3 1 (7.14%) Node.js
3 1 (7.14%) REST
3 1 (7.14%) Sensu
3 1 (7.14%) Twitter Bootstrap
Miscellaneous
1 1 (7.14%) Data Centre
1 1 (7.14%) Enterprise Software
1 1 (7.14%) Fat Client
1 1 (7.14%) Management Information System
1 1 (7.14%) Thin Client
1 1 (7.14%) Virtual Team
Operating Systems
1 14 (100.00%) Linux
2 4 (28.57%) Red Hat Enterprise Linux
3 2 (14.29%) Fedora
3 2 (14.29%) Windows
4 1 (7.14%) Ubuntu
4 1 (7.14%) Unix
4 1 (7.14%) VMS
4 1 (7.14%) Windows Server
4 1 (7.14%) Windows Server 2008
Processes & Methodologies
1 10 (71.43%) DevOps
2 4 (28.57%) Configuration Management
3 2 (14.29%) Agile Software Development
3 2 (14.29%) Analytics
4 1 (7.14%) Business Intelligence
4 1 (7.14%) Content Management
4 1 (7.14%) Continuous Integration
4 1 (7.14%) Data Protection
4 1 (7.14%) Digital Marketing
4 1 (7.14%) High Availability
4 1 (7.14%) Machine Learning
4 1 (7.14%) Microservices
4 1 (7.14%) Migration
4 1 (7.14%) Multithreading
4 1 (7.14%) Programme Management
4 1 (7.14%) Project Management
4 1 (7.14%) Scrum
4 1 (7.14%) Server Monitoring
4 1 (7.14%) Technical Architecture
4 1 (7.14%) Test Automation
Programming Languages
1 8 (57.14%) Python
2 4 (28.57%) Bash Shell
3 3 (21.43%) Java
4 2 (14.29%) PowerShell
5 1 (7.14%) Java 8
5 1 (7.14%) JavaScript
5 1 (7.14%) Perl
Qualifications
1 3 (21.43%) Security Cleared
2 2 (14.29%) DV Cleared
3 1 (7.14%) RHCA
3 1 (7.14%) RHCE
3 1 (7.14%) SC Cleared
System Software
1 4 (28.57%) Docker
2 2 (14.29%) Btrfs
2 2 (14.29%) VMware Infrastructure
3 1 (7.14%) Hyper-V
3 1 (7.14%) KVM
3 1 (7.14%) Virtual Machines
3 1 (7.14%) VirtualBox
3 1 (7.14%) vSphere
3 1 (7.14%) Xen
Systems Management
1 7 (50.00%) Terraform
2 6 (42.86%) Puppet
3 5 (35.71%) Ansible
4 3 (21.43%) Kubernetes
5 2 (14.29%) Consul
5 2 (14.29%) HAProxy
5 2 (14.29%) Opscode Chef
5 2 (14.29%) Oracle ZFS
6 1 (7.14%) Docker Swarm
6 1 (7.14%) Grafana
6 1 (7.14%) Graphite
6 1 (7.14%) HP Fortify
6 1 (7.14%) Nagios
6 1 (7.14%) Packer
6 1 (7.14%) ZABBIX
Vendors
1 11 (78.57%) Red Hat
2 2 (14.29%) VMware
3 1 (7.14%) Citrix
3 1 (7.14%) Google
3 1 (7.14%) HP
3 1 (7.14%) MKS
3 1 (7.14%) New Relic
3 1 (7.14%) SAP
3 1 (7.14%) Splunk