The following table provides summary statistics for contract job vacancies advertised in Cardiff with a requirement for Linux skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Linux over the 3 months to 25 June 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.

Linux
South Wales / Cardiff
3 months to
25 Jun 2017
Same period 2016 Same period 2015
Rank 14 21 14
Rank change year-on-year +7 -7  
Contract jobs citing Linux 25 18 33
As % of all contract IT jobs advertised in Cardiff 7.79% 6.45% 9.82%
As % of the Operating Systems category 26.32% 23.08% 40.74%
Number of daily rates quoted 17 15 29
Median daily rate £218 £438 £350
Median daily rate % change year-on-year -50.28% +25.00%  
90% offered a daily rate of more than £171 £335 £275
10% offered a daily rate of more than £443 £515 £450
UK excluding London median daily rate £425 £400 £375
% change year-on-year +6.25% +6.66%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £40.00 £40.00 £37.50
% change year-on-year - +6.66%  

Linux is in the operating system skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Cardiff with a requirement for operating system skills.

Contract Operating System Skills
Cardiff
Contract job vacancies with a requirement for operating system skills 95 78 81
As % of all contract IT job vacancies advertised in Cardiff 29.60% 27.96% 24.11%
Number of daily rates quoted 69 50 65
Median daily rate £325 £350 £350
Median daily rate % change year-on-year -7.14% -  
90% offered a daily rate of more than £165 £100 £170
10% offered a daily rate of more than £418 £450 £425
UK excluding London median daily rate £375 £363 £345
% change year-on-year +3.44% +5.07%  
Number of hourly rates quoted 11 7 6
Median hourly rate £13.00 £13.00 £11.50
Median hourly rate % change year-on-year - +13.04%  
90% offered a hourly rate of more than £11.50 £11.90 £9.00
10% offered a hourly rate of more than £16.28 £19.00 £36.00
UK excluding London median hourly rate £15.50 £17.00 £16.20
% change year-on-year -8.82% +4.93%  

Linux
Job Vacancy Trend in Cardiff

The job posting trend of jobs advertised in Cardiff citing Linux as a proportion of all contract or permanent IT jobs with a match in the Operating Systems category.

Job vacancy trend for Linux in Cardiff

Linux
Contractor Daily Rate Trend in Cardiff

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

Contractor daily rate trend for Linux in Cardiff

Linux
Contractor Daily Rate Histogram in Cardiff

The daily rate distribution of IT jobs citing Linux in Cardiff over the 3 months to 25 June 2017.

Contractor daily rate histogram for Linux in Cardiff

Linux
Contractor Hourly Rate Trend in Cardiff

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing Linux in Cardiff.

Contractor hourly rate trend for Linux in Cardiff

For the 6 months to 25 June 2017, IT contractor jobs citing Linux 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 Cardiff region with a requirement for Linux.

1 26 (41.94%) DevOps
2 25 (40.32%) Agile Software Development
3 21 (33.87%) Java
4 18 (29.03%) Puppet
5 17 (27.42%) Ansible
6 16 (25.81%) HTTP
7 14 (22.58%) Jenkins
7 14 (22.58%) MongoDB
7 14 (22.58%) ITIL
8 13 (20.97%) Amazon AWS
8 13 (20.97%) Red Hat Enterprise Linux
8 13 (20.97%) Microservices
8 13 (20.97%) Terraform
9 12 (19.35%) Continuous Integration
9 12 (19.35%) Kafka
9 12 (19.35%) Oracle
9 12 (19.35%) Configuration Management
10 11 (17.74%) Windows
10 11 (17.74%) Apache
10 11 (17.74%) REST
10 11 (17.74%) Security Cleared
11 10 (16.13%) Software Engineering
11 10 (16.13%) AIX
11 10 (16.13%) TCP/IP
11 10 (16.13%) DNS
11 10 (16.13%) Spring
11 10 (16.13%) Dropwizard
11 10 (16.13%) Continuous Deployment
12 9 (14.52%) VMware
12 9 (14.52%) JSON

Linux
Co-occurring IT Skills in Cardiff 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 11 (17.74%) Apache
2 6 (9.68%) Elasticsearch
3 5 (8.06%) Confluence
4 3 (4.84%) Apache Solr
4 3 (4.84%) Apache Spark
4 3 (4.84%) IIS
4 3 (4.84%) Jetty
4 3 (4.84%) Mongrel
4 3 (4.84%) nginx
4 3 (4.84%) Tomcat
4 3 (4.84%) WebSphere
5 2 (3.23%) Tornado
6 1 (1.61%) Adobe Experience Manager
6 1 (1.61%) Oracle HTTP Server
6 1 (1.61%) PowerExchange
6 1 (1.61%) WebLogic
Business Applications
1 2 (3.23%) Remedy ITSM
Cloud Services
1 13 (20.97%) Amazon AWS
2 7 (11.29%) AWS CloudFormation
3 6 (9.68%) Amazon EC2
3 6 (9.68%) Amazon S3
4 3 (4.84%) Google App Engine
4 3 (4.84%) Google Cloud Platform
5 2 (3.23%) Amazon CloudWatch
5 2 (3.23%) GitHub
6 1 (1.61%) Amazon ElastiCache
6 1 (1.61%) Amazon ELB
6 1 (1.61%) Route 53
6 1 (1.61%) Virtual Private Cloud
Communications & Networking
1 16 (25.81%) HTTP
2 10 (16.13%) DNS
2 10 (16.13%) TCP/IP
3 7 (11.29%) Firewall
4 5 (8.06%) SSL
5 4 (6.45%) DSL
5 4 (6.45%) Internet
6 3 (4.84%) Cisco ASA
6 3 (4.84%) Cisco IOS
6 3 (4.84%) DHCP
6 3 (4.84%) FTP
6 3 (4.84%) IPsec
6 3 (4.84%) tcpdump
7 1 (1.61%) LDAP
7 1 (1.61%) SSH
Database & Business Intelligence
1 14 (22.58%) MongoDB
2 8 (12.90%) Relational Database
3 6 (9.68%) Neo4j
4 5 (8.06%) Big Data
4 5 (8.06%) HBase
5 4 (6.45%) Hadoop
5 4 (6.45%) PowerCenter
6 3 (4.84%) MySQL
6 3 (4.84%) Oracle Database
6 3 (4.84%) SQL Server
7 2 (3.23%) Apache Hive
7 2 (3.23%) Data Warehouse
7 2 (3.23%) RDBMS
7 2 (3.23%) SQLite
8 1 (1.61%) Amazon DynamoDB
8 1 (1.61%) Impala
8 1 (1.61%) Pentaho
8 1 (1.61%) PostgreSQL
8 1 (1.61%) Redis
Development Applications
1 14 (22.58%) Jenkins
2 9 (14.52%) Git (software)
3 6 (9.68%) Cucumber
4 5 (8.06%) Ant
4 5 (8.06%) JIRA
4 5 (8.06%) Maven
5 4 (6.45%) Hudson
6 3 (4.84%) Travis CI
6 3 (4.84%) Vagrant
7 2 (3.23%) Gradle
8 1 (1.61%) NuGet
8 1 (1.61%) Selenium
8 1 (1.61%) Subversion
8 1 (1.61%) WebDriver
General
1 5 (8.06%) Finance
2 3 (4.84%) Telecoms
3 1 (1.61%) Multimedia
Job Titles
1 15 (24.19%) DevOps Engineer
2 10 (16.13%) Developer
3 7 (11.29%) Java Developer
4 5 (8.06%) Support Engineer
5 4 (6.45%) 1st Line Engineer
5 4 (6.45%) 1st Line Support
5 4 (6.45%) 1st Line Support Engineer
5 4 (6.45%) 1st Line Technical Support
5 4 (6.45%) Cloud Engineer
5 4 (6.45%) Software Engineer
5 4 (6.45%) Technical Engineer
5 4 (6.45%) Technical Support
5 4 (6.45%) Technical Support Engineer
6 3 (4.84%) Architect
6 3 (4.84%) AWS Engineer
6 3 (4.84%) Java Architect
6 3 (4.84%) Java Solutions Architect
6 3 (4.84%) Linux Engineer
6 3 (4.84%) Network Engineer
6 3 (4.84%) Solutions Architect
Libraries, Frameworks & Software Standards
1 12 (19.35%) Kafka
2 11 (17.74%) REST
3 10 (16.13%) Dropwizard
3 10 (16.13%) Spring
4 9 (14.52%) JSON
5 7 (11.29%) Hibernate
6 6 (9.68%) HTML
6 6 (9.68%) JAX-RS
6 6 (9.68%) RESTful
6 6 (9.68%) Spring Boot
7 5 (8.06%) iXBRL
7 5 (8.06%) Java EE
8 4 (6.45%) J2EE
8 4 (6.45%) Middleware
8 4 (6.45%) Web Services
9 3 (4.84%) .NET
9 3 (4.84%) Servlets
10 2 (3.23%) Boost C++ Libraries
10 2 (3.23%) Flask
10 2 (3.23%) OAuth
Miscellaneous
1 8 (12.90%) Data Centre
2 6 (9.68%) Analytical Skills
3 2 (3.23%) Computer Science
3 2 (3.23%) Life Science
4 1 (1.61%) Cyberthreat
4 1 (1.61%) Device Driver
4 1 (1.61%) Greenfield Project
4 1 (1.61%) Virtual Team
Operating Systems
1 13 (20.97%) Red Hat Enterprise Linux
2 11 (17.74%) Windows
3 10 (16.13%) AIX
4 8 (12.90%) Unix
5 6 (9.68%) Mac OS X
6 3 (4.84%) Debian
Processes & Methodologies
1 26 (41.94%) DevOps
2 25 (40.32%) Agile Software Development
3 14 (22.58%) ITIL
4 13 (20.97%) Microservices
5 12 (19.35%) Configuration Management
5 12 (19.35%) Continuous Integration
6 10 (16.13%) Continuous Deployment
6 10 (16.13%) Software Engineering
7 8 (12.90%) Scrum
8 7 (11.29%) Continuous Delivery
8 7 (11.29%) Test Automation
9 5 (8.06%) Data Centre Operations
9 5 (8.06%) Open Source
9 5 (8.06%) Responsive Web Design
9 5 (8.06%) Server Hardening
9 5 (8.06%) Web Design
10 4 (6.45%) CQRS
10 4 (6.45%) ETL
10 4 (6.45%) Incident Management
10 4 (6.45%) Service Management
Programming Languages
1 21 (33.87%) Java
2 6 (9.68%) Python
3 5 (8.06%) Bash Shell
3 5 (8.06%) JCL
3 5 (8.06%) Shell Script
3 5 (8.06%) SQL
4 4 (6.45%) Go
4 4 (6.45%) Perl
5 2 (3.23%) C++
5 2 (3.23%) Korn
5 2 (3.23%) PowerShell
6 1 (1.61%) C
6 1 (1.61%) JavaScript
6 1 (1.61%) PHP
6 1 (1.61%) Scala
Qualifications
1 11 (17.74%) Security Cleared
2 8 (12.90%) SC Cleared
3 4 (6.45%) CCNA
3 4 (6.45%) Cisco Certification
3 4 (6.45%) ITIL Foundation Certificate
4 3 (4.84%) BPSS Clearance
Quality Assurance & Compliance
1 4 (6.45%) SLA
2 2 (3.23%) Disclosure Scotland
3 1 (1.61%) Def Stans
System Software
1 5 (8.06%) Docker
1 5 (8.06%) VMware Infrastructure
2 3 (4.84%) iptables
2 3 (4.84%) Xen
3 2 (3.23%) Apache Flume
3 2 (3.23%) Hyper-V
4 1 (1.61%) NFS
4 1 (1.61%) Oracle RAC
Systems Management
1 18 (29.03%) Puppet
2 17 (27.42%) Ansible
3 13 (20.97%) Terraform
4 7 (11.29%) Opscode Chef
5 6 (9.68%) Rundeck
6 5 (8.06%) Control-M
7 4 (6.45%) HP Data Protector
7 4 (6.45%) Marathon
7 4 (6.45%) Mesos
7 4 (6.45%) Tivoli
7 4 (6.45%) Tivoli Storage Manager
8 3 (4.84%) Nagios
9 2 (3.23%) Kibana
9 2 (3.23%) Salt
10 1 (1.61%) Fluentd
10 1 (1.61%) Grafana
10 1 (1.61%) Prometheus
Vendors
1 12 (19.35%) Oracle
2 9 (14.52%) VMware
3 8 (12.90%) Cisco
3 8 (12.90%) Red Hat
4 7 (11.29%) Microsoft
5 5 (8.06%) Informatica
5 5 (8.06%) Micro Focus
5 5 (8.06%) Splunk
6 4 (6.45%) BMC
6 4 (6.45%) Citrix
6 4 (6.45%) Cloudera
6 4 (6.45%) HP
6 4 (6.45%) Juniper
6 4 (6.45%) Remedy
7 3 (4.84%) Brocade
7 3 (4.84%) Google
7 3 (4.84%) Kofax
7 3 (4.84%) Thunderhead
8 2 (3.23%) Clearswift
8 2 (3.23%) Teradata