Period
to 21 September 2018

The following table provides summary statistics for permanent job vacancies advertised in Crawley with a requirement for TDD skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited TDD over the 6 months to 21 September 2018 with a comparison to the same period in the previous 2 years.

Test-Driven Development (TDD)
West Sussex > Crawley
6 months to
21 Sep 2018
Same period 2017 Same period 2016
Rank 26 24 18
Rank change year-on-year -2 -6 +18
Permanent jobs citing TDD 48 76 117
As % of all permanent IT jobs advertised in Crawley 7.49% 10.66% 11.74%
As % of the Processes & Methodologies category 8.65% 11.95% 12.61%
Number of salaries quoted 50 78 123
Crawley median annual salary £52,500 £42,500 £45,000
Median salary % change year-on-year +23.53% -5.56% -10.00%
10th Percentile £41,250 £30,000 £23,750
90th Percentile £63,750 £57,500 £61,250
West Sussex median annual salary £47,500 £42,500 £44,000
% change year-on-year +11.76% -3.41% -2.22%

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

All Process and Methodology Skills
Crawley
Permanent vacancies with a requirement for process or methodology skills 555 636 928
As % of all permanent IT jobs advertised in Crawley 86.58% 89.20% 93.08%
Number of salaries quoted 523 581 886
Crawley median annual salary £47,500 £42,500 £47,500
Median salary % change year-on-year +11.76% -10.53% +6.74%
10th Percentile £27,800 £28,750 £30,000
90th Percentile £63,750 £57,500 £67,500
West Sussex median annual salary £45,000 £42,500 £45,000
% change year-on-year +5.88% -5.56% +5.88%

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
Salary Trend in Crawley

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing TDD in Crawley.

Salary trend for TDD in Crawley

TDD
Salary Histogram in Crawley

The salary distribution of IT jobs citing TDD in Crawley over the 6 months to 21 September 2018.

Salary histogram for TDD in Crawley

For the 6 months to 21 September 2018, IT jobs citing TDD also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads across the Crawley region with a requirement for TDD.

1 36 (75.00%) BDD
2 32 (66.67%) Agile Software Development
3 30 (62.50%) .NET Framework
3 30 (62.50%) C#
3 30 (62.50%) .NET
3 30 (62.50%) SQL Server
4 27 (56.25%) Ruby
4 27 (56.25%) ASP.NET
4 27 (56.25%) MVC
4 27 (56.25%) ASP.NET MVC
4 27 (56.25%) Entity Framework
5 26 (54.17%) ASP.NET Web API
6 25 (52.08%) Git (software)
7 24 (50.00%) SQL Server 2016
8 22 (45.83%) RESTful
8 22 (45.83%) Node.js
8 22 (45.83%) WCF
9 21 (43.75%) WPF
9 21 (43.75%) Marketing
9 21 (43.75%) WinForms
9 21 (43.75%) Windows
9 21 (43.75%) Web Application Development
9 21 (43.75%) NoSQL
9 21 (43.75%) ASP.NET MVC 5
9 21 (43.75%) Code First Entity Framework
10 20 (41.67%) JavaScript
11 15 (31.25%) HTML
12 10 (20.83%) KnockoutJS
13 9 (18.75%) CSS
14 8 (16.67%) jQuery

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:

Application Platforms
1 1 (2.08%) SharePoint
Cloud Services
1 1 (2.08%) Amazon AWS
1 1 (2.08%) Amazon EC2
1 1 (2.08%) GitHub
1 1 (2.08%) Virtual Private Cloud
Communications & Networking
1 3 (6.25%) TCP/IP
1 3 (6.25%) Wi-Fi
1 3 (6.25%) Wireless
Database & Business Intelligence
1 30 (62.50%) SQL Server
2 24 (50.00%) SQL Server 2016
3 21 (43.75%) NoSQL
4 1 (2.08%) Amazon DynamoDB
4 1 (2.08%) Amazon RDS
4 1 (2.08%) Amazon Redshift
4 1 (2.08%) MySQL
4 1 (2.08%) PostgreSQL
4 1 (2.08%) SQL Server 2012
Development Applications
1 25 (52.08%) Git (software)
2 5 (10.42%) Team Foundation Server
3 4 (8.33%) gulp
3 4 (8.33%) Visual Studio
4 3 (6.25%) Visual Studio Team System
5 2 (4.17%) Cucumber
6 1 (2.08%) Ant
6 1 (2.08%) Atlassian Bamboo
6 1 (2.08%) Bitbucket
6 1 (2.08%) GitLab
6 1 (2.08%) Gradle
6 1 (2.08%) Hudson
6 1 (2.08%) Jenkins
6 1 (2.08%) jMock
6 1 (2.08%) JUnit
6 1 (2.08%) Maven
6 1 (2.08%) Mockito
6 1 (2.08%) Selenium
6 1 (2.08%) webpack
General
1 21 (43.75%) Marketing
2 3 (6.25%) Avionics
3 1 (2.08%) Finance
Job Titles
1 42 (87.50%) Developer
2 28 (58.33%) .NET Developer
3 22 (45.83%) .NET Software Developer
4 9 (18.75%) C# Developer
5 7 (14.58%) C# .NET Developer
5 7 (14.58%) Senior Developer
6 6 (12.50%) ASP.NET Developer
6 6 (12.50%) ASP.NET MVC Developer
6 6 (12.50%) C# ASP.NET Developer
6 6 (12.50%) Front End Developer (Client-Side Developer)
6 6 (12.50%) Ruby on Rails Developer
7 5 (10.42%) Senior .NET Developer
7 5 (10.42%) Senior ASP.NET Developer
7 5 (10.42%) Senior ASP.NET MVC Developer
7 5 (10.42%) Senior C# .NET Developer
7 5 (10.42%) Senior C# ASP.NET Developer
7 5 (10.42%) Senior C# Developer
8 3 (6.25%) Lead Developer
8 3 (6.25%) Technical Leader
8 3 (6.25%) Test Engineer
Libraries, Frameworks & Software Standards
1 30 (62.50%) .NET
1 30 (62.50%) .NET Framework
2 27 (56.25%) ASP.NET
2 27 (56.25%) ASP.NET MVC
2 27 (56.25%) Entity Framework
3 26 (54.17%) ASP.NET Web API
4 22 (45.83%) Node.js
4 22 (45.83%) RESTful
4 22 (45.83%) WCF
5 21 (43.75%) ASP.NET MVC 5
5 21 (43.75%) Code First Entity Framework
5 21 (43.75%) WinForms
5 21 (43.75%) WPF
6 15 (31.25%) HTML
7 10 (20.83%) KnockoutJS
8 9 (18.75%) CSS
9 8 (16.67%) jQuery
10 7 (14.58%) CSS3
10 7 (14.58%) HTML5
11 6 (12.50%) React
Miscellaneous
1 2 (4.17%) FMCG
1 2 (4.17%) User Experience
2 1 (2.08%) Enterprise Software
2 1 (2.08%) Linux Command Line
Operating Systems
1 21 (43.75%) Windows
2 4 (8.33%) Linux
3 1 (2.08%) Unix
Processes & Methodologies
1 36 (75.00%) BDD
2 32 (66.67%) Agile Software Development
3 27 (56.25%) MVC
4 21 (43.75%) Web Application Development
5 8 (16.67%) Scrum
6 6 (12.50%) API Design
6 6 (12.50%) API Development
6 6 (12.50%) Front End Development
6 6 (12.50%) Inversion of Control
6 6 (12.50%) Kanban
6 6 (12.50%) Open Source
7 5 (10.42%) Domain-Driven Design
7 5 (10.42%) Problem-Solving
7 5 (10.42%) Requirements Analysis
7 5 (10.42%) Risk Analysis
7 5 (10.42%) Unit Testing
8 4 (8.33%) MVVM
8 4 (8.33%) SOLID
8 4 (8.33%) Test Automation
8 4 (8.33%) Wireframes
Programming Languages
1 30 (62.50%) C#
2 27 (56.25%) Ruby
3 20 (41.67%) JavaScript
4 4 (8.33%) TypeScript
5 3 (6.25%) Python
6 2 (4.17%) Java
7 1 (2.08%) SQL
Quality Assurance & Compliance
1 4 (8.33%) QA
System Software
1 1 (2.08%) Docker
Vendors
1 1 (2.08%) Google
1 1 (2.08%) Microsoft
1 1 (2.08%) Oracle