The following table provides summary statistics for contract job vacancies advertised in Welwyn Garden City with a requirement for Unit Testing skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Unit Testing over the 3 months to 24 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.

Unit Testing
Hertfordshire / Welwyn Garden City
3 months to
24 Jun 2017
Same period 2016 Same period 2015
Rank 12 13 20
Rank change year-on-year +1 +7  
Contract jobs citing Unit Testing 1 5 5
As % of all contract IT jobs advertised in Welwyn Garden City 1.85% 7.94% 3.94%
As % of the Processes & Methodologies category 2.22% 10.00% 4.85%
Number of daily rates quoted 1 4 4
Median daily rate £475 £288 £310
Median daily rate % change year-on-year +65.21% -7.25%  
UK excluding London median daily rate £388 £375 £350
% change year-on-year +3.33% +7.14%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £42.88 £42.50 £37.40
% change year-on-year +0.88% +13.63%  

Unit Testing 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 Welwyn Garden City with a requirement for process and methodology skills.

Contract Process & Methodology Skills
Welwyn Garden City
Contract job vacancies with a requirement for process and methodology skills 45 50 103
As % of all contract IT job vacancies advertised in Welwyn Garden City 83.33% 79.37% 81.10%
Number of daily rates quoted 23 23 49
Median daily rate £475 £413 £315
Median daily rate % change year-on-year +15.15% +30.95%  
90% offered a daily rate of more than £180 £288 £273
10% offered a daily rate of more than £575 £430 £377
UK excluding London median daily rate £415 £400 £380
% change year-on-year +3.75% +5.26%  
Number of hourly rates quoted 2 4 1
Median hourly rate £13.00 £18.25 £47.50
Median hourly rate % change year-on-year -28.76% -61.57%  
UK excluding London median hourly rate £34.00 £28.50 £30.00
% change year-on-year +19.29% -5.00%  

Unit Testing
Job Vacancy Trend in Welwyn Garden City

The job posting trend of jobs advertised in Welwyn Garden City citing Unit Testing as a proportion of all contract or permanent IT jobs with a match in the Processes & Methodologies category.

Job vacancy trend for Unit Testing in Welwyn Garden City

Unit Testing
Contractor Daily Rate Trend in Welwyn Garden City

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Unit Testing in Welwyn Garden City.

Contractor daily rate trend for Unit Testing in Welwyn Garden City

For the 6 months to 24 June 2017, IT contractor jobs citing Unit Testing 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 Welwyn Garden City region with a requirement for Unit Testing.

1 3 (100.00%) HTML
1 3 (100.00%) JavaScript
1 3 (100.00%) Photoshop
1 3 (100.00%) CSS
1 3 (100.00%) XML
1 3 (100.00%) XHTML
1 3 (100.00%) TeamSite
1 3 (100.00%) W3C
1 3 (100.00%) Project Management
1 3 (100.00%) SEO
1 3 (100.00%) Stakeholder Management
1 3 (100.00%) CMS
1 3 (100.00%) Web Design
1 3 (100.00%) Agile Software Development
1 3 (100.00%) TDD
1 3 (100.00%) Retail
1 3 (100.00%) Ajax
1 3 (100.00%) Git (software)
1 3 (100.00%) HTML5
1 3 (100.00%) BDD
1 3 (100.00%) Node.js
1 3 (100.00%) CSS3
1 3 (100.00%) Responsive Web Design
1 3 (100.00%) Sass
1 3 (100.00%) AngularJS
1 3 (100.00%) Grunt
1 3 (100.00%) Magnolia
1 3 (100.00%) User Experience
1 3 (100.00%) React
1 3 (100.00%) gulp

Unit Testing
Co-occurring IT Skills in Welwyn Garden City 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 (100.00%) CMS
1 3 (100.00%) Magnolia
Applications
1 3 (100.00%) Photoshop
Development Applications
1 3 (100.00%) Git (software)
1 3 (100.00%) Grunt
1 3 (100.00%) gulp
1 3 (100.00%) JIRA
General
1 3 (100.00%) Retail
Job Titles
1 3 (100.00%) Developer
1 3 (100.00%) Front End Developer (Client-Side Developer)
2 1 (33.33%) Front End Web Developer (Client-Side Developer)
2 1 (33.33%) JavaScript Developer
2 1 (33.33%) UI Developer
2 1 (33.33%) Web Developer
2 1 (33.33%) Web UI Developer
Libraries, Frameworks & Software Standards
1 3 (100.00%) Ajax
1 3 (100.00%) AngularJS
1 3 (100.00%) CSS
1 3 (100.00%) CSS3
1 3 (100.00%) HTML
1 3 (100.00%) HTML5
1 3 (100.00%) jQuery
1 3 (100.00%) JSON
1 3 (100.00%) Node.js
1 3 (100.00%) React
1 3 (100.00%) Sass
1 3 (100.00%) XHTML
1 3 (100.00%) XML
Miscellaneous
1 3 (100.00%) User Experience
1 3 (100.00%) W3C
Processes & Methodologies
1 3 (100.00%) A/B Testing
1 3 (100.00%) Agile Software Development
1 3 (100.00%) API Development
1 3 (100.00%) BDD
1 3 (100.00%) Front End Development
1 3 (100.00%) Project Management
1 3 (100.00%) Responsive Web Design
1 3 (100.00%) SEO
1 3 (100.00%) Stakeholder Management
1 3 (100.00%) TDD
1 3 (100.00%) Web Design
1 3 (100.00%) Web Development
1 3 (100.00%) Wireframes
Programming Languages
1 3 (100.00%) JavaScript
Quality Assurance & Compliance
1 3 (100.00%) WAI
Systems Management
1 3 (100.00%) TeamSite