Period
to 21 January 2018

The following table provides summary statistics for contract job vacancies advertised in Crawley 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 21 January 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.

Test-Driven Development (TDD)
West Sussex > Crawley
6 months to
21 Jan 2018
Same period 2017 Same period 2016
Rank 19 22 35
Rank change year-on-year +3 +13 -3
Contract jobs citing TDD 17 11 21
As % of all contract IT jobs advertised in Crawley 7.30% 4.87% 4.38%
As % of the Processes & Methodologies category 8.02% 5.47% 5.01%
Number of daily rates quoted 2 10 20
Crawley median daily rate £280 £478 £450
Median daily rate % change year-on-year -41.36% +6.11% -
10th Percentile £196 £391 £308
90th Percentile £368 £509 £545
West Sussex median daily rate £380 £475 £394
% change year-on-year -20.00% +20.63% +14.55%
Number of hourly rates quoted 6 0 0
Crawley median hourly rate £45.00 - -
West Sussex median hourly rate £45.00 - -

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 Crawley with a requirement for process or methodology skills.

All Process and Methodology Skills
Crawley
Contract vacancies with a requirement for process or methodology skills 212 201 419
As % of all contract IT jobs advertised in Crawley 90.99% 88.94% 87.47%
Number of daily rates quoted 158 123 324
Crawley median daily rate £400 £385 £400
Median daily rate % change year-on-year +3.90% -3.75% -
10th Percentile £114 £240 £300
90th Percentile £615 £530 £538
West Sussex median daily rate £425 £403 £400
% change year-on-year +5.59% +0.63% +6.67%
Number of hourly rates quoted 7 12 16
Crawley median hourly rate £45.00 £34.00 £37.50
Median hourly rate % change year-on-year +32.35% -9.33% +130.77%
10th Percentile £35.75 £34.00 £14.63
90th Percentile £47.50 £50.00 £41.88
West Sussex median hourly rate £47.75 £35.00 £27.50
% change year-on-year +36.43% +27.27% +66.67%

TDD
Job Vacancy Trend in Crawley

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

Job vacancy trend for TDD in Crawley

TDD
Contractor Daily Rate Trend in Crawley

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

Contractor daily rate trend for TDD in Crawley

TDD
Contractor Daily Rate Histogram in Crawley

The daily rate distribution of IT jobs citing TDD in Crawley over the 6 months to 21 January 2018.

Contractor daily rate histogram for TDD in Crawley

TDD
Contractor Hourly Rate Trend in Crawley

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

Contractor hourly rate trend for TDD in Crawley

For the 6 months to 21 January 2018, 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 Crawley region with a requirement for TDD.

1 17 (100.00%) Agile Software Development
2 8 (47.06%) Test Automation
3 7 (41.18%) Linux
4 6 (35.29%) OO
4 6 (35.29%) C++
4 6 (35.29%) Continuous Integration
4 6 (35.29%) Git (software)
4 6 (35.29%) Software Architecture
4 6 (35.29%) GoogleTest
4 6 (35.29%) Yocto
5 5 (29.41%) BDD
6 4 (23.53%) Cucumber
6 4 (23.53%) Domain-Driven Design
6 4 (23.53%) REST
6 4 (23.53%) Microservices
6 4 (23.53%) SDLC
6 4 (23.53%) API Integration
6 4 (23.53%) Collaborative Working
6 4 (23.53%) Java EE
6 4 (23.53%) Refactoring
6 4 (23.53%) Selenium
6 4 (23.53%) Spring
6 4 (23.53%) Maven
6 4 (23.53%) Java
6 4 (23.53%) JUnit
6 4 (23.53%) SOAP
6 4 (23.53%) Web Services
6 4 (23.53%) Hibernate
7 3 (17.65%) Workflow
7 3 (17.65%) Salesforce.com

TDD
Co-occurring IT Skills in Crawley 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:

Cloud Services
1 3 (17.65%) Salesforce Sales Cloud
2 1 (5.88%) Salesforce Service Cloud
Communications & Networking
1 1 (5.88%) Wireless
Development Applications
1 6 (35.29%) Git (software)
1 6 (35.29%) GoogleTest
2 4 (23.53%) Cucumber
2 4 (23.53%) JUnit
2 4 (23.53%) Maven
2 4 (23.53%) Selenium
3 1 (5.88%) Jenkins
General
1 3 (17.65%) Marketing
Job Titles
1 6 (35.29%) Developer
1 6 (35.29%) Linux Engineer
2 4 (23.53%) Java Developer
2 4 (23.53%) Senior Developer
2 4 (23.53%) Senior Java Developer
3 3 (17.65%) Consultant
3 3 (17.65%) Salesforce Consultant
3 3 (17.65%) Test Consultant
4 2 (11.76%) PHP Developer
5 1 (5.88%) Cloud Consultant
5 1 (5.88%) PHP Laravel Developer
5 1 (5.88%) Scrum Master
5 1 (5.88%) Test Automation Engineer
5 1 (5.88%) Test Engineer
Libraries, Frameworks & Software Standards
1 6 (35.29%) Yocto
2 4 (23.53%) Hibernate
2 4 (23.53%) Java EE
2 4 (23.53%) REST
2 4 (23.53%) SOAP
2 4 (23.53%) Spring
2 4 (23.53%) Web Services
3 1 (5.88%) Laravel
Operating Systems
1 7 (41.18%) Linux
Processes & Methodologies
1 17 (100.00%) Agile Software Development
2 8 (47.06%) Test Automation
3 6 (35.29%) Continuous Integration
3 6 (35.29%) OO
3 6 (35.29%) Software Architecture
4 5 (29.41%) BDD
5 4 (23.53%) API Integration
5 4 (23.53%) Collaborative Working
5 4 (23.53%) Domain-Driven Design
5 4 (23.53%) Microservices
5 4 (23.53%) Refactoring
5 4 (23.53%) SDLC
6 3 (17.65%) Analytics
6 3 (17.65%) ATDD
6 3 (17.65%) Workflow
7 1 (5.88%) Coaching
7 1 (5.88%) Defect Tracking
7 1 (5.88%) Process Improvement
7 1 (5.88%) Root Cause Analysis
7 1 (5.88%) Scrum
Programming Languages
1 6 (35.29%) C++
2 4 (23.53%) Java
3 3 (17.65%) Apex Code
4 2 (11.76%) PHP
Vendors
1 3 (17.65%) DocuSign
1 3 (17.65%) Salesforce.com