The following table provides summary statistics for contract job vacancies advertised in Cardiff with a requirement for Performance Tuning skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Performance Tuning over the 3 months to 30 March 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.

Performance Tuning
South Wales / Cardiff
3 months to
30 Mar 2017
Same period 2016 Same period 2015
Rank 39 58 21
Rank change year-on-year +19 -37  
Contract jobs citing Performance Tuning 4 2 16
As % of all contract IT jobs advertised in Cardiff 1.15% 0.51% 6.40%
As % of the Processes & Methodologies category 1.33% 0.60% 8.04%
Number of daily rates quoted 3 0 15
Median daily rate £375 - £200
UK excluding London median daily rate £403 £400 £375
% change year-on-year +0.62% +6.66%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £35.00 £44.00 £37.50
% change year-on-year -20.45% +17.33%  

Performance Tuning is in the process and methodology 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 process and methodology skills.

Contract Process & Methodology Skills
Cardiff
Contract job vacancies with a requirement for process and methodology skills 300 332 199
As % of all contract IT job vacancies advertised in Cardiff 86.46% 85.13% 79.60%
Number of daily rates quoted 247 240 149
Median daily rate £375 £375 £375
90% offered a daily rate of more than £190 £275 £214
10% offered a daily rate of more than £513 £450 £475
UK excluding London median daily rate £410 £400 £396
% change year-on-year +2.50% +1.01%  
Number of hourly rates quoted 9 11 10
Median hourly rate £26.00 £13.00 £17.83
Median hourly rate % change year-on-year +100.00% -27.06%  
90% offered a hourly rate of more than £14.58 £13.00 £12.25
10% offered a hourly rate of more than £34.75 £19.63 £32.50
UK excluding London median hourly rate £35.75 £38.00 £30.00
% change year-on-year -5.92% +26.66%  

Performance Tuning
Job Vacancy Trend in Cardiff

The job posting trend of jobs advertised in Cardiff citing Performance Tuning as a proportion of all contract or permanent IT jobs with a match in the Processes & Methodologies category.

Job vacancy trend for Performance Tuning in Cardiff

Performance Tuning
Contractor Daily Rate Trend in Cardiff

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

Contractor daily rate trend for Performance Tuning in Cardiff

Performance Tuning
Contractor Hourly Rate Trend in Cardiff

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

Contractor hourly rate trend for Performance Tuning in Cardiff

For the 6 months to 30 March 2017, IT contractor jobs citing Performance Tuning 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 Performance Tuning.

1 3 (75.00%) Agile Software Development
2 2 (50.00%) Linux
2 2 (50.00%) Migration
2 2 (50.00%) Java
2 2 (50.00%) SQL
2 2 (50.00%) J2EE
2 2 (50.00%) SSL
2 2 (50.00%) Microsoft
2 2 (50.00%) HTTP
2 2 (50.00%) TCP/IP
2 2 (50.00%) Git (software)
2 2 (50.00%) Amazon EC2
2 2 (50.00%) Amazon S3
2 2 (50.00%) Amazon AWS
2 2 (50.00%) Puppet
2 2 (50.00%) Jenkins
2 2 (50.00%) Ansible
2 2 (50.00%) DevOps
2 2 (50.00%) Rundeck
2 2 (50.00%) Mesos
2 2 (50.00%) Microservices
2 2 (50.00%) Terraform
2 2 (50.00%) Marathon
3 1 (25.00%) Mongrel
3 1 (25.00%) Travis CI
3 1 (25.00%) Google Cloud Platform
3 1 (25.00%) BPSS Clearance
3 1 (25.00%) Disclosure Scotland
3 1 (25.00%) Performance Optimisation
3 1 (25.00%) SQL Server 2014

Performance Tuning
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 1 (25.00%) Apache
1 1 (25.00%) IIS
1 1 (25.00%) Jetty
1 1 (25.00%) Mongrel
1 1 (25.00%) nginx
1 1 (25.00%) Tomcat
1 1 (25.00%) WebSphere
Applications
1 1 (25.00%) MS Excel
Cloud Services
1 2 (50.00%) Amazon AWS
1 2 (50.00%) Amazon EC2
1 2 (50.00%) Amazon S3
2 1 (25.00%) Google App Engine
2 1 (25.00%) Google Cloud Platform
Communications & Networking
1 2 (50.00%) HTTP
1 2 (50.00%) SSL
1 2 (50.00%) TCP/IP
2 1 (25.00%) DHCP
2 1 (25.00%) DNS
2 1 (25.00%) DSL
2 1 (25.00%) FTP
2 1 (25.00%) IPsec
Database & Business Intelligence
1 1 (25.00%) MongoDB
1 1 (25.00%) Oracle Database
1 1 (25.00%) Oracle Database 10g
1 1 (25.00%) Oracle Database 11g
1 1 (25.00%) PostgreSQL
1 1 (25.00%) Redis
1 1 (25.00%) SQL Server
1 1 (25.00%) SQL Server 2008
1 1 (25.00%) SQL Server 2012
1 1 (25.00%) SQL Server 2014
1 1 (25.00%) SQL Server Analysis Services
1 1 (25.00%) SQL Server Integration Services
1 1 (25.00%) SQL Server Reporting Services
Development Applications
1 2 (50.00%) Git (software)
1 2 (50.00%) Jenkins
2 1 (25.00%) SQL Server Management Studio (SSMS)
2 1 (25.00%) Travis CI
Job Titles
1 1 (25.00%) DBA
1 1 (25.00%) Developer
1 1 (25.00%) DevOps Engineer
1 1 (25.00%) Oracle Developer
1 1 (25.00%) PL/SQL Developer
1 1 (25.00%) SQL DBA
1 1 (25.00%) SQL Developer
Libraries, Frameworks & Software Standards
1 2 (50.00%) J2EE
2 1 (25.00%) .NET
2 1 (25.00%) Node.js
2 1 (25.00%) Servlets
Miscellaneous
1 1 (25.00%) Analytical Skills
Operating Systems
1 2 (50.00%) Linux
Processes & Methodologies
1 3 (75.00%) Agile Software Development
2 2 (50.00%) DevOps
2 2 (50.00%) Microservices
2 2 (50.00%) Migration
3 1 (25.00%) Configuration Management
3 1 (25.00%) Continuous Integration
3 1 (25.00%) Mentoring
3 1 (25.00%) Open Source
3 1 (25.00%) Performance Optimisation
3 1 (25.00%) Software Engineering
3 1 (25.00%) Web Development
Programming Languages
1 2 (50.00%) Java
1 2 (50.00%) SQL
2 1 (25.00%) PL/SQL
2 1 (25.00%) T-SQL
Qualifications
1 1 (25.00%) BPSS Clearance
1 1 (25.00%) Degree
Quality Assurance & Compliance
1 1 (25.00%) Disclosure Scotland
System Software
1 1 (25.00%) VMware Infrastructure
1 1 (25.00%) Xen
Systems Management
1 2 (50.00%) Ansible
1 2 (50.00%) Marathon
1 2 (50.00%) Mesos
1 2 (50.00%) Puppet
1 2 (50.00%) Rundeck
1 2 (50.00%) Terraform
Vendors
1 2 (50.00%) Microsoft
2 1 (25.00%) Google
2 1 (25.00%) Oracle
2 1 (25.00%) VMware