Period
to 24 November 2017

The following table provides summary statistics for contract job vacancies advertised in Gatwick with a requirement for TDD skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited TDD over the 6 months to 24 November 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.

Test-Driven Development (TDD)
West Sussex > Gatwick
6 months to
24 Nov 2017
Same period 2016 Same period 2015
Rank 15 23 12
Rank change year-on-year +8 -11 -
Contract jobs citing TDD 9 10 18
As % of all contract IT jobs advertised in Gatwick 5.92% 6.25% 12.41%
As % of the Processes & Methodologies category 6.92% 6.76% 13.95%
Number of daily rates quoted 6 8 11
Gatwick median daily rate £343 £450 £540
Median daily rate % change year-on-year -23.89% -16.67% -
10th Percentile £315 £283 £356
90th Percentile £349 £513 £550
West Sussex median daily rate £343 £475 £425
% change year-on-year -27.89% +11.76% +13.33%
Number of hourly rates quoted 3 0 3
Gatwick median hourly rate £45.00 - £50.00
West Sussex median hourly rate £45.00 £45.00 £50.00
% change year-on-year - -10.00% +17.65%

TDD is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Gatwick with a requirement for process or methodology skills.

All Process and Methodology Skills
Gatwick
Contract vacancies with a requirement for process or methodology skills 130 148 129
As % of all contract IT jobs advertised in Gatwick 85.53% 92.50% 88.97%
Number of daily rates quoted 73 99 109
Gatwick median daily rate £390 £375 £425
Median daily rate % change year-on-year +4.00% -11.76% +17.24%
10th Percentile £264 £299 £261
90th Percentile £507 £508 £569
West Sussex median daily rate £420 £400 £400
% change year-on-year +5.00% - +14.29%
Number of hourly rates quoted 21 16 4
Gatwick median hourly rate £49.50 £43.00 £50.00
Median hourly rate % change year-on-year +15.12% -14.00% +212.50%
West Sussex median hourly rate £47.50 £35.00 £32.00
% change year-on-year +35.71% +9.38% +100.00%

TDD
Job Vacancy Trend in Gatwick

Job postings citing TDD as a percentage of all IT jobs advertised in Gatwick.

Job vacancy trend for TDD in Gatwick

TDD
Contractor Daily Rate Trend in Gatwick

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

Contractor daily rate trend for TDD in Gatwick

TDD
Contractor Hourly Rate Trend in Gatwick

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

Contractor hourly rate trend for TDD in Gatwick

For the 6 months to 24 November 2017, IT contractor jobs citing TDD 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 Gatwick region with a requirement for TDD.

1 9 (100.00%) Web Services
1 9 (100.00%) Agile Software Development
2 5 (55.56%) Spring
2 5 (55.56%) Java EE
2 5 (55.56%) Degree
2 5 (55.56%) Computer Science
2 5 (55.56%) Migration
2 5 (55.56%) RESTful
2 5 (55.56%) Microsoft Azure
2 5 (55.56%) Amazon AWS
2 5 (55.56%) HTML5
2 5 (55.56%) CSS
2 5 (55.56%) JDBC
2 5 (55.56%) IBM Domino
2 5 (55.56%) GCP
2 5 (55.56%) HTML
2 5 (55.56%) Java
2 5 (55.56%) JavaScript
2 5 (55.56%) SQL
2 5 (55.56%) SQL Server
2 5 (55.56%) DB2
2 5 (55.56%) MongoDB
2 5 (55.56%) NoSQL
2 5 (55.56%) REST
2 5 (55.56%) AngularJS
2 5 (55.56%) Cloud Foundry
2 5 (55.56%) Docker
2 5 (55.56%) Google Cloud Platform
2 5 (55.56%) React
2 5 (55.56%) Public Cloud

TDD
Co-occurring IT Skills in Gatwick 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 5 (55.56%) Cloud Foundry
1 5 (55.56%) IBM Domino
Cloud Services
1 5 (55.56%) Amazon AWS
1 5 (55.56%) Google Cloud Platform
1 5 (55.56%) Microsoft Azure
Database & Business Intelligence
1 5 (55.56%) DB2
1 5 (55.56%) MongoDB
1 5 (55.56%) NoSQL
1 5 (55.56%) SQL Server
Development Applications
1 4 (44.44%) Team Foundation Server
1 4 (44.44%) Visual Studio
Job Titles
1 9 (100.00%) Developer
2 5 (55.56%) Java Developer
3 4 (44.44%) .NET Developer
3 4 (44.44%) Senior .NET Developer
3 4 (44.44%) Senior Developer
Libraries, Frameworks & Software Standards
1 9 (100.00%) Web Services
2 5 (55.56%) AngularJS
2 5 (55.56%) CSS
2 5 (55.56%) HTML
2 5 (55.56%) HTML5
2 5 (55.56%) Java EE
2 5 (55.56%) JDBC
2 5 (55.56%) JPA
2 5 (55.56%) React
2 5 (55.56%) REST
2 5 (55.56%) RESTful
2 5 (55.56%) Spring
2 5 (55.56%) Spring Boot
2 5 (55.56%) Spring Cloud
3 4 (44.44%) .NET
3 4 (44.44%) ASP.NET
3 4 (44.44%) ASP.NET Web API
3 4 (44.44%) WinForms
Miscellaneous
1 5 (55.56%) Computer Science
1 5 (55.56%) Public Cloud
Processes & Methodologies
1 9 (100.00%) Agile Software Development
2 5 (55.56%) Case Management
2 5 (55.56%) Migration
3 4 (44.44%) MVC
3 4 (44.44%) MVVM
3 4 (44.44%) Performance Testing
3 4 (44.44%) Scrum
3 4 (44.44%) System Testing
3 4 (44.44%) Unit Testing
Programming Languages
1 5 (55.56%) Java
1 5 (55.56%) JavaScript
1 5 (55.56%) SQL
2 4 (44.44%) C#
Qualifications
1 5 (55.56%) Degree
Quality Assurance & Compliance
1 5 (55.56%) GCP
System Software
1 5 (55.56%) Docker
Vendors
1 4 (44.44%) Microsoft