Period
to 18 September 2018

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 18 September 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
Berkshire > Reading
6 months to
18 Sep 2018
Same period 2017 Same period 2016
Rank 76 79 105
Rank change year-on-year +3 +26 0
Contract jobs citing CentOS 16 4 1
As % of all contract IT jobs advertised in Reading 1.10% 0.32% 0.062%
As % of the Operating Systems category 5.63% 1.52% 0.35%
Number of daily rates quoted 12 3 1
Reading median daily rate £513 £413 £425
Median daily rate % change year-on-year +24.24% -2.94% -1.73%
10th Percentile £401 £365 £413
90th Percentile £575 £430 £438
Berkshire median daily rate £488 £500 £466
% change year-on-year -2.50% +7.24% +24.33%
Number of hourly rates quoted 0 0 0
Reading median hourly rate - - -
Berkshire median hourly rate - £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 284 263 288
As % of all contract IT jobs advertised in Reading 19.51% 21.01% 17.99%
Number of daily rates quoted 162 143 171
Reading median daily rate £425 £390 £375
Median daily rate % change year-on-year +8.97% +4.00% -7.41%
10th Percentile £143 £182 £213
90th Percentile £550 £538 £538
Berkshire median daily rate £400 £388 £375
% change year-on-year +3.23% +3.33% -2.91%
Number of hourly rates quoted 15 31 17
Reading median hourly rate £21.50 £16.00 £21.33
Median hourly rate % change year-on-year +34.38% -24.99% -1.02%
10th Percentile £15.80 £10.75 £10.65
90th Percentile £41.70 £47.50 £43.28
Berkshire median hourly rate £17.50 £13.75 £12.50
% change year-on-year +27.27% +10.00% -42.00%

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 18 September 2018.

Contractor daily rate histogram for CentOS in Reading

For the 6 months to 18 September 2018, 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 16 (100.00%) Linux
2 15 (93.75%) DevOps
3 14 (87.50%) Python
4 11 (68.75%) Amazon AWS
4 11 (68.75%) Red Hat
5 10 (62.50%) Bash Shell
6 8 (50.00%) Puppet
6 8 (50.00%) Ansible
7 6 (37.50%) Terraform
7 6 (37.50%) Capita
7 6 (37.50%) Red Hat Enterprise Linux
7 6 (37.50%) Configuration Management
8 5 (31.25%) Java
8 5 (31.25%) Web Services
8 5 (31.25%) Jenkins
8 5 (31.25%) Docker
9 4 (25.00%) Hadoop
9 4 (25.00%) SC Cleared
9 4 (25.00%) Security Cleared
9 4 (25.00%) Ubuntu
9 4 (25.00%) JavaScript
9 4 (25.00%) TCP/IP
10 3 (18.75%) HTTP
10 3 (18.75%) C++
10 3 (18.75%) Unix
10 3 (18.75%) Debian
10 3 (18.75%) SSH
10 3 (18.75%) Git (software)
10 3 (18.75%) PowerShell
10 3 (18.75%) Microsoft Azure

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 (12.50%) Apache
1 2 (12.50%) Elasticsearch
Cloud Services
1 11 (68.75%) Amazon AWS
2 3 (18.75%) Microsoft Azure
3 2 (12.50%) Amazon EC2
3 2 (12.50%) Amazon ELB
3 2 (12.50%) Amazon S3
3 2 (12.50%) Route 53
3 2 (12.50%) Virtual Private Cloud
4 1 (6.25%) Amazon CloudWatch
4 1 (6.25%) AWS CloudFormation
4 1 (6.25%) Datadog
4 1 (6.25%) Google Cloud Platform
Communications & Networking
1 4 (25.00%) TCP/IP
2 3 (18.75%) HTTP
2 3 (18.75%) SSH
3 2 (12.50%) IPsec
3 2 (12.50%) OpenVPN
3 2 (12.50%) SSL
3 2 (12.50%) VPN
Database & Business Intelligence
1 4 (25.00%) Hadoop
2 2 (12.50%) Big Data
2 2 (12.50%) MariaDB
2 2 (12.50%) MySQL
3 1 (6.25%) PostgreSQL
Development Applications
1 5 (31.25%) Jenkins
2 3 (18.75%) Git (software)
3 1 (6.25%) Atlassian Bamboo
3 1 (6.25%) Travis CI
3 1 (6.25%) Vagrant
Job Titles
1 13 (81.25%) DevOps Engineer
2 3 (18.75%) AWS DevOps
2 3 (18.75%) AWS DevOps Engineer
2 3 (18.75%) AWS Engineer
2 3 (18.75%) Cloud Engineer
2 3 (18.75%) Developer
3 2 (12.50%) Linux Developer
3 2 (12.50%) Linux DevOps Engineer
3 2 (12.50%) Linux Engineer
3 2 (12.50%) Linux Scripter
3 2 (12.50%) Linux/Unix DevOps
3 2 (12.50%) Open Source Developer
3 2 (12.50%) Python Developer
4 1 (6.25%) Angular Developer
4 1 (6.25%) AWS Consultant
4 1 (6.25%) Consultant
4 1 (6.25%) DevOps Consultant
4 1 (6.25%) Java Developer
4 1 (6.25%) SC Cleared Java Developer
Libraries, Frameworks & Software Standards
1 5 (31.25%) Web Services
2 2 (12.50%) Elastic Stack
2 2 (12.50%) LAMP
3 1 (6.25%) AngularJS
3 1 (6.25%) CSS
3 1 (6.25%) HTML
3 1 (6.25%) JSP
3 1 (6.25%) Middleware
3 1 (6.25%) Twitter Bootstrap
Miscellaneous
1 3 (18.75%) Linux Command Line
2 1 (6.25%) BBC
2 1 (6.25%) Fat Client
2 1 (6.25%) Private Cloud
2 1 (6.25%) Thin Client
Operating Systems
1 16 (100.00%) Linux
2 6 (37.50%) Red Hat Enterprise Linux
3 4 (25.00%) Ubuntu
4 3 (18.75%) Debian
4 3 (18.75%) Unix
5 2 (12.50%) Fedora
5 2 (12.50%) Windows
6 1 (6.25%) Windows Server
6 1 (6.25%) Windows Server 2008
Processes & Methodologies
1 15 (93.75%) DevOps
2 6 (37.50%) Configuration Management
3 3 (18.75%) Open Source
3 3 (18.75%) Open Source Development
4 2 (12.50%) Analytics
4 2 (12.50%) Migration
5 1 (6.25%) Continuous Integration
5 1 (6.25%) Data Protection
5 1 (6.25%) Deployment Automation
5 1 (6.25%) Root Cause Analysis
5 1 (6.25%) Server Monitoring
5 1 (6.25%) Task Automation
5 1 (6.25%) TDD
5 1 (6.25%) Test Automation
5 1 (6.25%) Web Development
Programming Languages
1 14 (87.50%) Python
2 10 (62.50%) Bash Shell
3 5 (31.25%) Java
4 4 (25.00%) JavaScript
5 3 (18.75%) C++
5 3 (18.75%) PowerShell
6 2 (12.50%) C
7 1 (6.25%) Perl
Qualifications
1 4 (25.00%) SC Cleared
1 4 (25.00%) Security Cleared
System Software
1 5 (31.25%) Docker
2 2 (12.50%) Btrfs
3 1 (6.25%) Active Directory
3 1 (6.25%) Hyper-V
3 1 (6.25%) Virtual Machines
3 1 (6.25%) VirtualBox
3 1 (6.25%) VMware Infrastructure
Systems Management
1 8 (50.00%) Ansible
1 8 (50.00%) Puppet
2 6 (37.50%) Terraform
3 3 (18.75%) Opscode Chef
3 3 (18.75%) SELinux
4 2 (12.50%) Consul
4 2 (12.50%) HAProxy
4 2 (12.50%) Kubernetes
4 2 (12.50%) Oracle ZFS
5 1 (6.25%) Kibana
5 1 (6.25%) Packer
5 1 (6.25%) ZABBIX
Vendors
1 11 (68.75%) Red Hat
2 6 (37.50%) Capita
3 2 (12.50%) Google
4 1 (6.25%) Citrix
4 1 (6.25%) MKS
4 1 (6.25%) New Relic
4 1 (6.25%) Splunk
4 1 (6.25%) VMware