Period
to 16 October 2018

The following table provides summary statistics for contract job vacancies advertised in Bristol 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 16 October 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
South West > Bristol
6 months to
16 Oct 2018
Same period 2017 Same period 2016
Rank 106 96 109
Rank change year-on-year -10 +13 -14
Contract jobs citing CentOS 20 17 1
As % of all contract IT jobs advertised in Bristol 0.97% 0.90% 0.058%
As % of the Operating Systems category 4.72% 5.00% 0.28%
Number of daily rates quoted 16 15 1
Bristol median daily rate £400 £365 £215
Median daily rate % change year-on-year +9.59% +69.77% -33.85%
10th Percentile £363 £313 £198
90th Percentile £438 £455 £233
South West median daily rate £413 £428 £450
% change year-on-year -3.51% -5.00% +20.00%
Number of hourly rates quoted 0 0 0
Bristol median hourly rate - - -
South West median hourly rate £44.58 £47.50 -
% change year-on-year -6.15% - -

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 Bristol with a requirement for operating system skills.

All Operating Systems
Bristol
Contract vacancies with a requirement for operating system skills 424 340 361
As % of all contract IT jobs advertised in Bristol 20.48% 17.91% 21.09%
Number of daily rates quoted 255 202 239
Bristol median daily rate £388 £345 £350
Median daily rate % change year-on-year +12.32% -1.43% -6.67%
10th Percentile £130 £136 £150
90th Percentile £514 £486 £558
South West median daily rate £390 £350 £365
% change year-on-year +11.43% -4.11% -2.67%
Number of hourly rates quoted 36 23 34
Bristol median hourly rate £20.22 £16.75 £17.50
Median hourly rate % change year-on-year +20.72% -4.29% +12.90%
10th Percentile £11.18 £12.13 £10.73
90th Percentile £47.50 £43.75 £43.00
South West median hourly rate £33.50 £19.25 £15.75
% change year-on-year +74.03% +22.22% -10.00%

CentOS
Job Vacancy Trend in Bristol

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

Job vacancy trend for CentOS in Bristol

CentOS
Contractor Daily Rate Trend in Bristol

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

Contractor daily rate trend for CentOS in Bristol

CentOS
Contractor Daily Rate Histogram in Bristol

The daily rate distribution of IT jobs citing CentOS in Bristol over the 6 months to 16 October 2018.

Contractor daily rate histogram for CentOS in Bristol

For the 6 months to 16 October 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 Bristol region with a requirement for CentOS.

1 20 (100.00%) Linux
2 14 (70.00%) Puppet
3 13 (65.00%) Red Hat
3 13 (65.00%) Git (software)
4 12 (60.00%) Red Hat Enterprise Linux
5 10 (50.00%) DevOps
6 8 (40.00%) MarkLogic
6 8 (40.00%) Jenkins
6 8 (40.00%) Docker
6 8 (40.00%) Java
6 8 (40.00%) Spring
6 8 (40.00%) Maven
6 8 (40.00%) Amazon AWS
6 8 (40.00%) Atlassian Bamboo
7 7 (35.00%) Samba
7 7 (35.00%) Python
7 7 (35.00%) NFS
8 6 (30.00%) Configuration Management
8 6 (30.00%) Firewall
8 6 (30.00%) Agile Software Development
8 6 (30.00%) Bash Shell
8 6 (30.00%) AWS CloudFormation
8 6 (30.00%) Spring Boot
9 5 (25.00%) Hyper-V
9 5 (25.00%) VMware
9 5 (25.00%) Shell Script
9 5 (25.00%) Perl
10 4 (20.00%) MySQL
10 4 (20.00%) XML
10 4 (20.00%) Active Directory

CentOS
Co-occurring IT Skills in Bristol 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 3 (15.00%) Apache
2 1 (5.00%) OpenStack
Applications
1 1 (5.00%) Houdini
1 1 (5.00%) Maya
1 1 (5.00%) NUKE
1 1 (5.00%) Photoshop
Cloud Services
1 8 (40.00%) Amazon AWS
2 6 (30.00%) AWS CloudFormation
3 4 (20.00%) Cloud Computing
Communications & Networking
1 6 (30.00%) Firewall
2 3 (15.00%) iSCSI
2 3 (15.00%) LAN
2 3 (15.00%) WAN
3 2 (10.00%) TCP/IP
3 2 (10.00%) VLAN
4 1 (5.00%) BGP
4 1 (5.00%) MPLS
4 1 (5.00%) OSPF
4 1 (5.00%) SMS
4 1 (5.00%) VPN
Database & Business Intelligence
1 8 (40.00%) MarkLogic
2 4 (20.00%) MySQL
3 3 (15.00%) PostgreSQL
4 1 (5.00%) RDBMS
4 1 (5.00%) Relational Database
Development Applications
1 13 (65.00%) Git (software)
2 8 (40.00%) Atlassian Bamboo
2 8 (40.00%) Jenkins
2 8 (40.00%) Maven
Job Titles
1 11 (55.00%) Administrator
1 11 (55.00%) Linux Administrator
1 11 (55.00%) Linux Systems Administrator
1 11 (55.00%) Systems Administrator
2 8 (40.00%) DevOps Engineer
3 4 (20.00%) AWS DevOps
3 4 (20.00%) AWS DevOps Engineer
3 4 (20.00%) AWS Engineer
4 3 (15.00%) Java Engineer
5 1 (5.00%) Cisco Network Specialist
5 1 (5.00%) Cisco Specialist
5 1 (5.00%) Linux Specialist
5 1 (5.00%) Network Specialist
Libraries, Frameworks & Software Standards
1 8 (40.00%) Spring
2 6 (30.00%) Spring Boot
3 4 (20.00%) XML
4 3 (15.00%) LAMP
4 3 (15.00%) LAPP Stack
4 3 (15.00%) LDAP
Miscellaneous
1 4 (20.00%) Cyberthreat
1 4 (20.00%) Linux Command Line
1 4 (20.00%) User Experience
2 3 (15.00%) Animation
3 2 (10.00%) Data Centre
4 1 (5.00%) Analytical Skills
Operating Systems
1 20 (100.00%) Linux
2 12 (60.00%) Red Hat Enterprise Linux
3 4 (20.00%) Debian
3 4 (20.00%) Windows
3 4 (20.00%) Windows 7
3 4 (20.00%) Windows Server
4 3 (15.00%) Ubuntu
4 3 (15.00%) Unix
5 2 (10.00%) VMS
Processes & Methodologies
1 10 (50.00%) DevOps
2 6 (30.00%) Agile Software Development
2 6 (30.00%) Configuration Management
3 4 (20.00%) Continuous Delivery
3 4 (20.00%) Continuous Deployment
3 4 (20.00%) Cybersecurity
3 4 (20.00%) Disaster Recovery
3 4 (20.00%) Service Delivery
3 4 (20.00%) Threat Detection
4 3 (15.00%) Security Hardening
5 2 (10.00%) Continuous Integration
5 2 (10.00%) Visual Effects
6 1 (5.00%) Enterprise Architecture
6 1 (5.00%) Security Monitoring
Programming Languages
1 8 (40.00%) Java
2 7 (35.00%) Python
3 6 (30.00%) Bash Shell
4 5 (25.00%) Perl
4 5 (25.00%) Shell Script
5 3 (15.00%) PHP
5 3 (15.00%) PowerShell
Qualifications
1 1 (5.00%) CCNA
1 1 (5.00%) Cisco Certification
Quality Assurance & Compliance
1 1 (5.00%) QA
System Software
1 8 (40.00%) Docker
2 7 (35.00%) NFS
2 7 (35.00%) Samba
3 5 (25.00%) Hyper-V
4 4 (20.00%) Active Directory
4 4 (20.00%) VMware Infrastructure
5 1 (5.00%) KVM
5 1 (5.00%) VMware ESXi
Systems Management
1 14 (70.00%) Puppet
2 2 (10.00%) Salt
2 2 (10.00%) Terraform
3 1 (5.00%) vCenter Server
Vendors
1 13 (65.00%) Red Hat
2 5 (25.00%) VMware
3 1 (5.00%) Cisco
3 1 (5.00%) Juniper
3 1 (5.00%) Nokia